SEG 45 Final_qx4 - Society of Economic Geologists

SEG
NEWSLETTER
SOCIETY OF ECONOMIC GEOLOGISTS
APRIL 2003 NUMBER 53
N. M. Vielreicher (SEG 1994) † , D. I. Groves (SEG 1973 F), I. R. Fletcher, N. J. McNaughton, B. Rasmussen
Centre for Global Metallogeny, School of Earth and Geographical Sciences,
The University of Western Australia, 35 Stirling Highway, Crawley, WA 6009, Australia.
INTRODUCTION
Accurate dates for mineralization constrain
genetic models for ore systems
and clarify the geological history of
their host terranes. The most common
geochronometers used to constrain the
timing of ore deposition are U-Pb in U-
bearing minerals, Re-Os in sulfides, and
K-Ar and Ar/Ar in K-bearing minerals.
These studies show that available
geochronometers provide accurate dates
for different mineralization styles.
However, in orogenic gold systems,
indisputably mineralization-related
minerals that can be reliably and precisely
dated are rare, and isotopic overprinting
or resetting are commonplace.
Thus, establishing the timing of ore
deposition in orogenic gold systems,
particularly in old terranes, has proven
difficult.
One geochronometer that can be
applied in metamorphic terranes is U-
Pb dating of monazite and xenotime.
Ore-related hydrothermal monazite and
xenotime have been identified in gold
deposits worldwide, independent of host
rocks, metamorphic grade, and age, but
their use as geochronometers in this
context is rare. This article reviews the
results of recent geochronological studies
of orogenic gold deposits using this
technique, and shows that robust and
precise dates can routinely be obtained.
† Corresponding author: e-mail,
nvielrei@mail.geol.uwa.edu.au
DATING OROGENIC
GOLD SYSTEMS
The ideal way to constrain the age of a
mineralization event is to date indisputably
ore-related minerals that have
remained isotopically undisturbed since
their formation. Many geochronological
studies of ore-related minerals in orogenic
gold systems have used the Ar/Ar
isotope system to date alteration or vein
minerals such as micas and amphiboles.
In Archean rocks, the resulting
dates are variously interpreted as formation
or cooling ages, or the result of
later disturbance (e.g., Witt et al.,
1997). A few studies have used the U-Pb
method to date hydrothermal zircon
(Kerrich and King, 1993), titanite (e.g.,
Lin and Corfu, 2002), and rutile (e.g.,
Clarke et al., 1990) from orogenic gold
systems. More recently, developments in
Re-Os methodology have led to successful
calculation of ages for sulfides, particularly
molybdenite (e.g., Suzuki et
al., 1993; Stein et al., 1998). However,
molybdenite is rare in most world-class
to giant gold-only orogenic deposits,
although there are cases where gold
lodes overprint earlier molybdenitebearing
mineralization styles.
The role of phosphate minerals
Monazite and xenotime are amenable
to U-Pb dating and are isotopically
quite robust, in that they have high
blocking temperatures (>600°C) for
diffusive Pb loss. Although they are
susceptible to recrystallization, such
effects can be identified using back-scattered
electron images (BSI). These minerals
are volumetrically minor but common
phases in many rock types,
including those formed by hydrothermal
systems. In orogenic gold deposits,
xenotime and monazite are documented
as part of the primary ore-mineral
assemblage, either in ore-bearing
veins or intergrown with ore minerals in
alteration zones, and can give direct
dates for gold mineralisation. They can
also occur in various pre- and post-ore
rocks, thus providing indirect age constraints.
In all cases, the success of phosphate
dating depends on a good understanding
of the paragenesis.
A BRIEF HISTORY OF PHOSPHATE
U-Th-Pb GEOCHRONOLOGY
Dating of phosphate minerals (particularly
monazite) is well established within
the array of U-Pb geochronological methods
(e.g., Parrish, 1990; Viskupic and
Hodges, 2001). Monazite is a valuable
chronometer for metamorphism (e.g.,
Kamber et al., 1998), magmatism (e.g.,
Harrison et al., 1995), sedimentation
(Evans and Zalasiewicz, 1996), and mineralization
(Wang et al., 1994) because of
its high Th and U contents, low common
Pb content, and its very rare inheritance
from previous geological events.
Xenotime also forms in sedimentary,
metamorphic, and
igneous environments, to page 10 ...

2 SEG NEWSLETTER No 53 • APRIL 2003
SEG
NEWSLETTER
Nº 53—APRIL 2003
EXECUTIVE EDITOR
Brian G. Hoal
NEWS EDITOR
Alice Bouley
PRODUCTION DIRECTOR
Lisa Laird
Society of Economic Geologists, Inc.
7811 Shaffer Parkway
Littleton, CO 80127 USA
Tel. +1.720.981.7882
Fax +1.720.981.7874
Email: seg@segweb.org
WEB PAGE:
http://www.segweb.org
TECHNICAL EDITOR FOR
FEATURE ARTICLES
Jeremy P. Richards
University of Alberta
Dept. of Earth and Atmospheric Sciences
Edmonton, AB T6G 2E3 • Canada
Tel. +1.780.492.3430
Fax +1.780.492.2030
E-mail: jeremy.richards@ualberta.com
Note: Feature articles are
peer reviewed before they are
accepted for publication.
The SEG Newsletter is published quarterly in
January, April, July and October by the Society
of Economic Geologists, Littleton, Colorado,
exclusively for members of the Society.
Opinions expressed herein are those of the writers
and do not necessarily represent official
positions of the Society of Economic Geologists.
When quoting material from the SEG Newsletter
please credit both author and publication.
©2003 The Society of Economic Geologists, Inc.
Designed & Produced by Type Communications
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Printed by Johnson Printing
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— FOR CONTRIBUTORS —
The SEG Newsletter is published for the benefit
of the worldwide membership of the
Society of Economic Geologists. We invite
news items and short articles on topics of
potential interest to the membership. If you
have questions on submittal of material,
please call the SEG office at +1.720.981.7882
or send details by FAX to +1.720.981.7874; by
email to
Format: Manuscripts should be double-spaced;
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scale. All contributions may be edited
for clarity or brevity.
Advertising: Paid advertising is solicited to
help offset publication and mailing costs; for
rates, contact the Executive Director.
Employment opportunities for economic geologists
will be listed free of charge.
DEADLINE FOR NEWSLETTER #54:
May 30, 2003
Contents
FEATURE ARTICLE
1 Hydrothermal Monazite and Xenotime Geochronology:
A New Direction for Precise Dating of Orogrenic Gold Mineralization
NEWSLETTER COLUMNS
3 From the Executive Editor
4 Letters to the Editor
4 From the Treasurer: Year-End Summary
5 Presidential Perspective: Political Advocacy –
Why Economic Geologists Should and Do Get Involved
6 SEG Canada Foundation Contributions
6 SEG Foundation Contributions: The Hugo Dummett Mineral Discovery Fund
7 SEG Foundation: Foundation Reviews 2002
9 SEG Foundation Contributions
SEG NEWS
17 SEG Contributions
18 2002 Thayer Lindsley Lecturer Tour: J. Richard Kyle
19 SEG’s Centenarian
20 SEG Student Chapter News
ECONOMIC GEOLOGY COMMENTARY
21 The Carbonate-hosted Lisheen Zn-Pb-Ag Deposit,
County Tipperary, Ireland
EXPLORATION REVIEWS
23–Alaska · 24–Western United States · 26–Australasia
MEMBERSHIP
29 SEG Membership: Candidates and New Fellows, Members and Student Members
40 Personal Notes & News; Corrections
41 SEG Membership Application Form
ANNOUNCEMENTS
3 SEG Contact Information
28 Symposium—Andean Metallogenesis: New Concepts, Discoveries and Updates
31 SEG-GAC-MAC Joint Spring Meeting 2003
35 SEG Workshop W1: Understanding Geophysical Inversions for Mineral Exploration
35 32nd International Geological Congress:
A Symposium on Hydrothermal Mineralization on Sediment-Covered Ridges
35 Australasia/Oceania SEG Lotto Winner
36 7th Biennial SGA Meeting
36 On-line Journal Access
36 Tethyan Ores Symposium: Call For Papers and Posters
37 Call for Nominations for SEG Traveling Lecturers
37 Call for Nominations – Lindgren Award for 2004
37 Call for Nominations for Penrose and SEG Silver Medals and Marsden Award
38 CIM Special Issue: Seafloor VMS Deposits
38 Field Trip to the Srednogorje Zone, Bulgaria
39 Ore Deposits Mapping Course in Nevada
39 UNESCO-SEG Metallogeny Course in Quito
39 Giggenbach Session Call for Papers
PUBLICATIONS
34 Publications of Interest
42 Publications Order Form
CALENDAR
44 Calendar
ADVERTISERS —
16 Activation Laboratories, Ltd.
8 ALS Chemex
6 Anzman, Joseph R.
30 Asterimages.com
17 Balbach Colorado, Inc.
6 Big Sky Geophysics
10 Coopersmith & Associates
17 Els, B. Gerhard
6 Geocon, Inc.
7 Global Mine Discovery Partnership
19 IMDEX Inc.
8 Intl. Geochemical Consultants
7 Larson, Lawrence T., Ph.D.
15 Learning Curve
7 Mining Activity Update
30 MiningProFiles
9 Nutt, Timothy
8 OREAS
7 Petrographic Consultants Intl.
9 Petrology Worldwide
16 Phelps Dodge
8 Recursos del Caribe S.A.
8 Resource Geosciences de Mexico
3 SEG 2004 Conference
6 Sinclair Knight Merz
8 XRAL
28 Zonge Engineering & Research

APRIL 2003 • No 53 SEG NEWSLETTER 3
FROM THE EXECUTIVE EDITOR
In the January issue of the SEG
Newsletter I reported on the success of
the April Global Exploration meeting in
Denver and on the record number of
members in the Society. These achievements
are all the more remarkable
because of the bear market that
adversely affected our investment portfolio
last year—see the Treasurer’s
report in this issue (p. 4). Fortunately,
the SEG Council and the Foundation
Board of Trustees continue to provide
strong support for the primary activities
that benefit our members. The challenge
of reporting on all these activities
within the confines of the SEG Newsletter
has been eased by shifting material to
the website and using eNews Updates to
provide timely reports and news
releases. This proliferation of material
reflects well on the vitality of our Society
and the energy of its members, especially
the numerous volunteers.
Recognition of exceptional achievement
in the field of economic geology
and in the service of the Society is provided
annually through a number of
medals, awards, and lectureships.
We’re looking for nominations for the
Lindgren Award, Penrose Gold Medal,
Silver Medal, and Marsden Award
(announcements on p. 37), and SEG
Traveling Lecturers (International
Exchange, Thayer Lindsley, and
Regional Vice President announcement
also on p. 37). Please help us to
acknowledge our peers.
Among the many meetings involving
the SEG this year, none is more central
to our efforts to generate revenue (and
hence avoid increases in membership
dues) than the SEG-GAC-MAC meeting
in Vancouver, Canada, in May (p. 31).
As a joint partner in this meeting, the
SEG will be sponsoring one symposium,
one workshop, eight sessions, and five
field trips. This will also be the venue
for the joint MDD/SEG luncheon and
the presentation of an award, together
with BHP Billiton, in memory of Hugo
Dummett. Not only
will this be a key
meeting for the SEG;
but the technical
content will be of
importance to every
economic geologist.
We encourage all
members to register
by April 15, 2003,
to enjoy the discounted
rate.
By the time you receive this
BRIAN G. HOAL
SEG Executive Director
and Editor
Newsletter, all members will be able to
subscribe to the on-line journal,
Economic Geology, for only US$10 per
year (p. 36). Unlimited access to fulltext
articles, known as Gold-level subscription,
has commenced with volume
98 (1). The more Gold-level subscribers
we get, the more we will be able to do in
terms of providing on-line formats other
than the current PDF. So please visit
www.segweb.org and remember to “go
Gold.” 1
Contact SEG
Our Headquarters address is
Society of Economic Geologists, Inc.
Society of Economic Geologists Foundation, Inc.
7811 Shaffer Parkway · Littleton, CO 80127, USA
Tel. +720.981.7882 · Fax +720.981.7874
E-mail: seg@segweb.org · Website: www.segweb.org
— Staff Phone & E-mail List —
EXECUTIVE Tel. Extension E-mail Address
Brian G. Hoal .................... 209 ........... director@segweb.org
John A. Thoms.................. 205 ........... development@segweb.org
George R. Ireland .............. 207 ............. treasurer@segweb.org
Christine Horrigan............. 210 ............. christinehorrigan@segweb.org
ACCOUNTING Tel. Extension E-mail Address
Helen Rice ........................ 203 ........... accounting@segweb.org
MEMBERSHIP Tel. Extension E-mail Address
Sue Courtney.................... 204 ........... membership@segweb.org
Shirley King ...................... 212 ........... shirleyking@segweb.org
PUBLICATIONS Tel. Extension E-mail Address
Journal Subscriptions:
Jean Thoms ...................... 208 ........... subscriptions@segweb.org
Publications Production:
Lisa Laird.......................... 206 ........... publications@segweb.org
Publications Editing:
Alice Bouley...................... 202 ........... editing@segweb.org
Publication Sales:
Sherol Roy ........................... 214 ............. sherolroy@segweb.org
PAID ADVERTISEMENT

4 SEG NEWSLETTER No 53 • APRIL 2003
LETTERS TO THE EDITOR
Our Readers Write:
Let’s Award the
Explorationist
Dear Editor:
Through a number of awards and grant
programs, the Society of Economic
Geologists honors the contributions
made by economic geologists.
Currently, these awards primarily recognize
workers within academia and
government-supported institutions. The
research typically addresses ore-forming
processes from the regional to the geochemical
scale. Missing from these
awards is one specifically recognizing
achievement in exploration. I recommend
that SEG similarly recognize, on
an annual basis, the contributions
made by exploration geologists in
industry, and particularly those who
contributed directly to the discovery of
significant mineralization.
Although “academic” research geologists
make important contributions to
our understanding of mineral systems,
and in this process, provide the building
blocks for constructing exploration
models, explorationists are the fundamental
driving force behind the sustainability
of the profession. Economic geology
would not exist without discovery.
New deposit types and/or new districts
are still being found, and it is through
the discovery process that workers in
academia and in government geological
surveys can then study such systems
and districts and drive the science forward.
Globally, discoveries are made
annually, and it seems fitting that the
geologic teams and principal leaders
making such discoveries be acknowledged
and complimented. This is especially
true as mineral deposits in many
regions are increasingly difficult to find,
owing to exploration maturity and the
need to search under “cover.” The explorationist
faces new challenges, as new
methods and tools are demanded and
these tools become more sophisticated.
Further, as the prices of many metals
are currently depressed and may
remain so for some time, companies are
forced to make critical financial decisions
on the viability of regional programs
and specific projects. Given these
considerations, it seems only appropriate
that SEG pay tribute to the explorationist
with as much fervor as it pays
tribute to the academic or governmentagency
researcher. I therefore recommend
that SEG develop an annual mineral
discoverer award. SEG should
consider the benefits that such an
award would bring in attracting and
maintaining support from industry-centered
economic geologists. Recognizing
the explorationist should be a fundamental
role of SEG.
Jacob Margolis (SEG 1982)
District Geologist
AngloGold North America
November 16, 2002
FROM THE TREASURER
Year-End Summary
The Society and the Foundation finished
2002 in good financial condition, having
accomplished many of the financial
goals that they set out to achieve.
Revenues increased about 3.5% from
2001, primarily owing to the highly successful
Global Exploration Conference,
as well as sales and membership dues.
Contributions were down slightly, as
expected, as many donors had accelerated
gifts for the Conference in the previous
year. A small amount of capital
gains rounded out total revenue of
$1.47 million.
Total operating expenses declined in
2002 to $1.33 million compared to
$1.56 million in 2001. Starting in mid-
2001, management of the Society recognized
the
SEG
SEG Inc. Foundation Total
Revenues $1,209,806 $122,607 $1,332,413
Contributions 54,610 59,602 114,212
Capital Gains 10,659 10,305 20,964
$1,275,075 $192,514 $1,467,589
Operating Expenses $1,249,982 84,630 1,334,612
Grants 0 196,740 196,740
$1,249,982 $281,370 $1,531,352
Net Surplus (Deficit) $25,093 ($88,856) ($63,763)
difficult
financial
outlook for
the mining
industry and
impacts that
it would
have on
members of
the Society.
An aggressive
costcutting
program
was
instituted,
resulting in a successful
reduction
of overhead
expenses.
As of December
31, 2002, the current
value of the
Society investment
portfolio
GEORGE R. IRELAND
SEG Treasurer
was approximately $8.7 million. Of this
sum, approximately 56% was invested
in equity-oriented mutual funds, 32%
was invested in fixed income mutual
funds and the balance was being held
in cash. While the value of the portfolio
declined last year, the benefits of the
diversification were apparent, as the
impact was substantially less than
declines in the stock markets as a
whole.
Looking forward, the Society remains
in strong financial condition with a
balanced budget planned for 2003 and
a cautious, conservative investment
profile. 1

APRIL 2003 • No 53 SEG NEWSLETTER 5
PRESIDENTIAL PERSPECTIVE
Political Advocacy –
Why Economic Geologists
Should and Do Get Involved
Members of the Society of Economic
Geologists are and should be involved
in the political processes in the countries
in which they work. We are
directly aware of the key economic,
social, cultural, and environmental
issues concerning mineral resource
development, and we can bring a scientific
perspective to debates that often
place passion over reason.
Furthermore, we often know better than
most people how significant certain
governmental programs, laws, and regulations
are for our profession.
As scientists, we tend to eschew getting
involved in political issues for
many reasons—because it seems that
politicians do not always make scientifically
sound decisions, or because we feel
uncomfortable speaking about issues
that are not entirely technical, or
because we are simply too busy at our
regular jobs. We usually are more comfortable
speaking with other scientists
than directly with policy makers, the
press, or the general public, but even
our efforts with other scientists can have
political ramifications.
A good example of economic geologists
getting involved is the report on
“Research Opportunities in the Geology
and Geochemistry of Mineral Deposit
Systems,” authored by Larry Cathles,
Murray Hitzman, Steve Kesler, and
Hiroshi Ohmoto as the final report of a
recent workshop sponsored by the
National Science Foundation (NSF) and
held at the SEG Headquarters. This
report, which is available on the SEG
website at , is written to inform
and encourage the NSF and other agencies
to fund basic research in economic
geology.
Geologic mapping of large areas and
at reconnaissance and regional scales
(1:24,000 and smaller) tends to be the
responsibility of government, because
the maps have many uses, including
energy, mineral, and water resource
exploration and development; environmental
protection; and reduction of
risks from natural hazards. Economic
geologists have been some of the key
proponents of geologic mapping by
provincial, state, and federal governments,
and they can often assist government
geologists by identifying critical
areas for mapping. Some of the most
detailed geologic maps of ore deposits
are being made by company geologists
and consultants, and government geological
surveys are publishing some of
these maps, thereby helping to make
them available to the public. Recently,
on behalf of SEG, I wrote a letter to the
President of Colombia in support of
government funding for that country’s
geological survey.
Many other government programs
directly benefit the profession of economic
geology, and as economic geologists,
we are well positioned to testify on
behalf of these programs. For example,
the National Research Council (NRC,
the operating arm of the non-governmental
National Academy of Sciences)
periodically provides guidance for U.S.
programs, and SEG members have
served on and testified before the NRC
study committees.
Two particularly significant reports
(available at ) for us
include the 1996 report on “Mineral
Resources and Society: A Review of the
U.S. Geological Survey’s Mineral
Resource Surveys Program Plan,” and
the 2002 report on “Evolutionary and
Revolutionary Technologies for
Mining.” An updated review of the U.S.
Geological Survey’s minerals program is
currently underway, which is particularly
timely because large cuts to the
program have been proposed, and a
report of the NRC has great potential to
influence funding and related policies.
Other prime examples of government
programs with applications to
economic geology include Canada’s
Lithoprobe and the U.S. EarthScope programs.
The former has demonstrated
the applicability of government-sponsored
seismic and other geophysical
experiments to understanding the geological
framework in which ore deposits
form. The latter is an initiative to characterize
the threedimensional
architecture of the
crust using integrated
seismic
tomography,
JONATHAN G. PRICE
SEG President
2003
global positioning system measurements,
in situ stress measurements, and
other geophysical investigations of tectonic
activity and volcanic processes.
Maintaining objectivity, a key aspect
of professional ethics in the fields of science,
generally gives us the credibility
needed to have influence on policy decisions.
When scientific uncertainty
allows for multiple interpretations or
opposing policies, it is best to say so,
and we should provide decision makers
with options whenever our scientific
analysis doesn’t give us clear directions.
As scientists, we have the obligation to
be objective, and as economic geologists,
we have the opportunity to get
involved, particularly in the political
issues that affect our work. 1
HUGO DUMMETT
MINERAL DISCOVERY
FUND
Contributions to this fund
are listed on p. 6.
Please visit
www.segweb.org/Dummett
Fund.pdf to learn more
about this fund and
its objectives.

6 SEG NEWSLETTER No 53 • APRIL 2003
Contributions
SEG Canada Foundation
12/1/02–2/27/03
CAD
BLANN, DAVID, CANADA
BONNER, RICK G., CANADA
BOYD, ROBERT, CANADA
BRUMMER, JOHANNES J.,
CANADA
CAMPBELL, F.R., CANADA
CHEN, YONGQING, CHINA
COLLINS, MICHAEL, CANADA
DEBICKI, EDWARD J., CANADA
DOLEJS, DAVID, CANADA
FRANKLIN, JAMES, CANADA
GAUTHIER, MICHEL, CANADA
GODDARD, C.N., CANADA
GONZALEZ, RALPH A., USA
GRACE, KENNETH, CANADA
HODGSON, C.J., CANADA
IDZISZEK, CHET, CANADA
JEFFERSON, CHARLES W.,
CANADA
LEECH, GEOFFREY B., CANADA
LESHER, C.M., CANADA
LIVERTON, TIMOTHY, CANADA
MACMURRAY, BRENDA A.,
CANADA
MACTAVISH, ALLAN, CANADA
MARSDEN, HENRY, CANADA
MERSERREAU, TERRY G.,
CANADA
MOYD, LOUIS, CANADA
MUMIN, HAMID, CANADA
PECK, DAVE, CANADA
POP, NICOLAE, CANADA
RAY, GERALD E., CANADA
RAYA, GERALD E., CANADA
REBAGLIATI, MARK, CANADA
REES, MATTHEW J., CANADA
RILEY, GEORGE C., CANADA
ROBBINS, BRUCE, CANADA
ROBERTS, GWILYM, CANADA
ROBERTSON, D.S., CANADA
SHEARER, JOHAN T., CANADA
STEWART, PETER W., CANADA
SUAREZ LLERENA, JAIME C.,
PERU
TYRWHITT, DAVID S.,
AUSTRALIA
WALFORD, PHILLIP C.,
CANADA
YALAN, JESUS, PERU
Contributions
SEG Foundation
The Hugo Dummett Mineral Discovery Fund
(From inception to February 28, 2003)
BHP BILLITON, AUSTRALIA
RIO TINTO, ENGLAND
BALLANTYNE, GEOFF, USA
DOW, JOHN S., AUSTRALIA
HATTORI, KEIKO H. AND
HEDENQUIST, JEFFREY,
CANADA
HUNTER DICKINSON, INC.,
CANADA
NEWMONT MINING CORP., USA
TAHERA CORP., CANADA
C.F. MINERAL RESEARCH,
CANADA
DRAKE, KIMBERLY F., USA
KOUTZ, FLEETWOOD R., USA
MCDOUGALL, JAMES J.,
CANADA
MEYER CREST LTD., USA
MINTER, W.E.L., SOUTH AFRICA
NELSON, ROGER E., USA
NIELSEN, RICHARD L., USA
OAKLEY, CHESTER, USA
PATTON, THOMAS C., USA
RICHARDS, JEREMY, CANADA
SHAVER, KENNETH C., USA
STAUDE, JOHN-MARK, CANADA
THOMPSON, JOHN, CANADA
WOOD, D.G., AUSTRALIA
YOUNG, RICHARD H., USA
JOSEPH R. ANZMAN
Exploration Geophysicist
P.O. Box 370526
Denver, Colorado 80237
303-337-4559
telephone/fax
• consulting
• interpretation
• project management
• geophysical surveys
• domestic & foreign
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Specialists in Pacific Rim epithermal, porphyry, skarn and VHMS mineralisation
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contact: Dr Phil White email: pwhite@skm.co.nz
tel: +64 9 913 8900 fax: +64 9 913 8901
Sinclair Knight Merz has offices in New Zealand, Australia, Europe, Fiji,
Guam, Indonesia, Malaysia, the Philippines, South America and Thailand
PAID ADVERTISEMENT

APRIL 2003 • No 53 SEG NEWSLETTER 7
FOUNDATION
Foundation Reviews 2002
The Foundation’s financial figures for 2002
are available. Last year SEGF contributed
$281,370 to the SEG to help finance programs,
activities, and Society operating
expenses. This amounts to a contribution to
SEG of $76 on behalf of every member.
Seventy percent of these funds went to support
programs such as Student Research
Grants ($66,000), Student Membership Fees
($31,500), and Student Chapter Support
($9,800). Student programs receive a large
part of our support, but other popular programs
funded by SEGF are the SEG Newsletter
($25,000), Regional VP activities, and lecture
or speaker travel support ($43,500). Foundation
contributed $84,600 to support operating
expenses of the Society. Besides administration
expenses, this amount includes
portfolio management fees and taxes.
Student Research Grants continue to be
one of the Society’s most popular progrms.
Students apply for grants, prepare a research
expense budget, and justify scientific basis
for their request. The grant each student
receives is theirs to spend, as required, to
help achieve his or her research goals. The
student controls expenditure of the funds
and this provides flexibility that is rare in
these days of limited research budgets and
carefully controlled large grants at universities.
Amounts of individual research grants
are not large, but the funds can and do make
an important impact on a research project.
Your Foundation’s support for students is an
investment in the future of our profession as
students are potential leaders of future mineral
resource development. The Foundation
is proud to support this activity.
The Foundation will actively solicit
donations to the Hugo Dummett Discovery
Fund this year. Funds received will be used
to support research and educational activities
whose objectives are the improved integration
of economic, social and cultural
issues with the science of economic geology.
Use of the funds in this manner is consistent
with wishes of the Dummett family,
and with the dedicated interests and objectives
of the late Hugo Dummett. We hope
the fund will help develop leaders in the
application of technology to the wise,
acceptable and sustainable development
of the world’s natural
resources.
Finally, it is very
important that I
acknowledge the generosity
of hundreds of
SEG members
throughout the world.
These members
understand that
RICHARD L. NIELSEN
SEG Foundation
President
financial support for the Foundation is an
investment in the future of our profession.
Further, this support continues to make
membership in the Society of Economic
Geologists a great bargain. Gifts to the SEG
Foundation were received in 2002 from
about 300 individual members and
amounted to $59,602. Gifts to the SEG
Canada Foundation were about $10,000
CDN, and research grants of $13,000 CDN
were awarded to Canadian students.
Increasingly, financial support to the
Foundation is being received from outside
the United States and this reflects increased
global support for economic geology by the
Society. 1
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10 SEG NEWSLETTER No 53 • APRIL 2003
... from 1
Hydrothermal Monazite and Xenotime Geochronology (Continued)
commonly associated with zircon, with
which it is isostructural. It is arguably
the best phosphate mineral for U–Pb
geochronology because it has low initial
Pb contents and typically contains
>1,000 ppm U. Furthermore, it appears
to tolerate quite severe self-radiation
from incorporated U and Th (Fletcher et
al., 2000) and remains closed to U- and
Pb-mobility because, like monazite, it
does not become metamict (Aleinikoff
and Grauch, 1990; Nasdala et al., 1999;
Vallini et al., 2002). Despite this suitability,
most previous uses of xenotime
have been as a thermochronometer,
and its significance as a geochronometer
has only recently been exploited.
Most published geochronological studies
of xenotime and monazite have
involved thermal ionization mass spectrometry
(TIMS; e.g., Parrish, 1990),
which ultimately provides the most precise
U-Pb measurements. However,
TIMS analysis cannot distinguish age
heterogeneity within single grains without
employing physical micro-splitting
procedures.
The increasing need for analyses of
very fine grains, or complex intergrowths,
highlights the importance of
in situ techniques. The applicability of
the electron microprobe (EMP) chemical
Th-U-total Pb isochron method (CHIME)
has been demonstrated by several workers
(e.g., Montel et al., 1996) on U- and
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Th-rich monazite and, to a lesser extent,
on xenotime. Analysis is nondestructive,
quick and relatively inexpensive,
and grains of 5 µm can be dated.
Unfortunately, it is rather imprecise
(errors of ≥ 30–50 m.y. in Archean
rocks), and is not applicable over the
entire geologic timescale, or to samples
with low Th and U. The presence of initial
Pb cannot be determined and a
breakdown of closed system behavior
due to U-Th-Pb element mobility cannot
be distinguished from real geological
age variability. The proton microprobe
(PIXE; e.g., Bruhn et al., 1999) has lower
detection limits, but is restricted to relatively
large mineral grains, and neither
EMP nor PIXE can measure Pb isotope
compositions. Laser-ablation inductively
coupled plasma mass spectrometry
(LA-ICP-MS) is developing rapidly as
a precise dating technique, yielding
ages with ≤ 3% errors for
Neoproterozoic and older samples
(Horn et al., 2000). However, the minimum
analytical spot size is ~50 mm.
Geochronological studies of phosphates
using SIMS (e.g., Kamber et al.,
1998; McNaughton et al., 1999;
Petersson et al., 2001) show that it is the
only technique than can currently provide
precise dates with high spatial resolution.
This is essential because
hydrothermal xenotime and, to a lesser
extent, monazite grains are generally

APRIL 2003 • No 53 SEG NEWSLETTER 11
et al., 2003). Such overgrowths of a few
microns or less have not yet been
recorded in ore-related xenotime.
All geochronological samples studied
at the University of Western Australia
are routinely examined with an SEM to
characterize growth zoning, irregularities,
or dissolution features before analysis.
Importantly, in all studies of orogenic
gold deposits, the data collected from
hydrothermal monazite and xenotime
define coherent and concordant populations
with little evidence for Pb loss (e.g.,
Nguyen, 1997; Brown et al., 2002), and
207 Pb/ 206 Pb dates for both minerals from
the same deposit are indistinguishable.
This concordancy provides a strong validation
of the results.
IDENTIFICATION OF
HYDROTHERMAL PHOSPHATES
Xenotime and monazite display a variety
of habits, which are not necessarily
unique to their origin. Diagenetic xenotime
typically forms pyramidal or irregular
syntaxial overgrowths on detrital
zircon that locally extend to fill small
pore spaces (e.g., Vallini et al., 2002).
Metamorphic and hydrothermal xenotime
are also commonly associated with
zircon, as inclusions and irregular and
discontinuous overgrowths (Fig. 1A and
B). Hydrothermal xenotime also occurs
in fractures in intensely altered zircon
(Fig. 1C), or as discrete grains associated
with ore-related minerals (Fig. 1D-F).
Rarely, metamorphic xenotime forms
exsolutions in recrystallized monazite
(Petersson et al., 2001).
Metamorphic and hydrothermal
monazite are also typically associated
with zircon, and metamorphic monazite,
like xenotime, can occur as discrete
grains that either define (Fig. 2A)
or crosscut the penetrative fabric (Fig.
2B; Dawson et al., 2003). Hydrothermal
monazite can form as a vein mineral
and may display an intimate relationship
with ore minerals (Fig. 3).
In cases where multiple generations
of phosphate minerals are present in a
sample, differences in chemical composition
can often be used as a more precise
indicator of origin than crystal morphology.
For example, most
hydrothermal minerals are depleted in
U relative to magmatic grains
(McNaughton et al., 1999). Although
this leads to less precise SHRIMP dates
of some hydrothermal minerals, the U
contents of hydrothermal xenotime, in
particular, are still sufficient for precise
FIGURE 1. Back-scattered electron microscope images of hydrothermal xenotime.
(A) Xenotime on detrital zircon (Witwatersrand Basin, South Africa; image by N. Kositcin);
(B) xenotime in and around altered magmatic zircon (Golden Mile, Western Australia);
(C) xenotime with ore-related arsenopyrite and zircon (Fazenda Brasileiro gold deposit,
Brazil; image by K. Pires); (D) xenotime in gold-bearing brecciated and altered dolerite
(Kalgoorlie, Western Australia); (E) xenotime intergrown with chalcopyrite (Muflura,
Zambian Copper Belt; image by G. Dawson); (F) xenotime in proximal gold-related alteration
zone in conglomerate (Damang, Ghana; image by J-P. Pigois).
FIGURE 2. Back-scattered electron microscope images of metamorphic monazite and
xenotime from Mt Barren Group pelites, Western Australia (images by G. Dawson).
(A) Monazite oriented parallel to regional foliation; (B) xenotime overgrowth on zircon
that cross-cuts the regional foliation.
to page 12 ...

12 SEG NEWSLETTER No 53 • APRIL 2003
... from 11
Hydrothermal Monazite and Xenotime Geochronology (Continued)
FIGURE 3. Back-scattered electron microscope images of hydrothermal monazite.
(A) Monazite with minute gold inclusion in altered and mineralized dolerite (Kalgoorlie,
Western Australia); (B) monazite in gold bearing, brecciated and altered dolerite
(Kalgoorlie, Western Australia); (C) monazite in gold-bearing quartz-pyrite vein (Pine
Creek, Australia; image by K. Şener); (D) monazite associated with pyrite (Muflura,
Zambian Copper Belt; image by G. Dawson).
SHRIMP geochronology (McNaughton
et al., 1999). A detailed study by
Kositcin et al. (2003) illustrates that, by
using EMP, xenotime composition can
be used to indicate its mode of formation
(Fig. 4). Hydrothermal xenotime
has distinctly lower U contents than
igneous xenotime, and the relative
MREE-HREE abundance, normalized
HREE slope, and presence or absence of
a negative Eu anomaly in xenotime
from the Witwatersrand Basin provide,
in combination, excellent chemical discriminators
of xenotime origin. Kositcin
et al. (2003) also stress combining geochemical
classifications with detailed
petrography and age data to produce a
definitive interpretation.
OCCURRENCE OF
HYDROTHERMAL PHOSPHATES
Hydrothermal phosphate minerals form
in many hydrothermal environments,
including orogenic gold deposits where
they occur in pre- and post-ore rocks, ore
veins, and in alteration zones. Brown et
al. (2002) described hydrothermal xenotime
and monazite in ore samples from
the Cleo gold deposit in the northeastern
Yilgarn craton, Western Australia,
and vein monazite and xenotime were
also identified in ore samples from a
selection of nearby deposits (B. Salier,
unpub. data). In fact, monazite and
xenotime are identified in ore veins and
intergrown with ore-related alteration
minerals in all deposits in the eastern
Yilgarn craton where samples have
been examined in detail. For example,
in the Golden Mile, monazite and xenotime
in mineralized and intensely
altered Golden Mile Dolerite are spatially
associated with apatite, rutile,
pyrite, chalcopyrite, sphalerite, tennantite-tetrahedrite,
telluride minerals, and
gold (Figs. 1D and 3A, B).
An interesting case is provided by the
High Rock Island gold deposit in the
Island Lake greenstone belt in
Manitoba, where the main quartz vein
contains hydrothermal monazite (Lin
and Corfu, 2002). The timing of quartz
vein formation relative to gold deposition
is equivocal, because the main vein
is mineralized only where it is cut by a
later fault. The U-Pb age of the monazite
is significantly older than that of
hydrothermal titanite. The titanite is
interpreted to be related to the gold
event, based on a positive correlation
between its Pb isotope composition and
that of gold-related galena (Lin and
Corfu, 2002). Hence, the age of the vein
monazite is probably the age of original
vein formation, with the implication
that gold deposition was a separate, distinctly
younger event. This is a convincing
example where monazite has not
been reset by a later, overprinting
hydrothermal event.
In the Proterozoic Pine Creek orogen,
Northern Territory, Australia,
hydrothermal monazite and xenotime
are associated with gold at several
deposits (Compston and Matthai, 1994;
Şener et al., in press). At the Goodall
gold deposit, monazite occurs in goldbearing
quartz-pyrite-arsenopyrite veins
as inclusions and along fractures in sulfides
(Fig. 3B), whereas hydrothermal
xenotime occurs in mineralized and
hydrothermally altered turbidites.
Hydrothermal phosphate minerals
also occur in a variety of other ore settings,
including the Cu-Au deposits in
the Carajás belt, Brazil (Tallarico et al.,
in press; C. Grainger, unpub. data), as
well as Bayan Obo Fe-REE-Nb deposit in
U (ppm)
Gd N
Igneous
Hydrothermal
Igneous
Hydrothermal
U/Th
Gd/Yb N
FIGURE 4. Geochemical discrimination
plots (after Kositcin et al., 2003) illustrating
the distinct variation in U-Th-REE composition
between igneous and hydrothermal
xenotime in the Witwatersrand basin.
Subscript N denotes values are C1 chrondrite
normalized.

APRIL 2003 • No 53 SEG NEWSLETTER 13
Mongolia (Wang et al., 1994), and
deposits in the Zambian Copper Belt
(e.g., Fig. 3D; G. Dawson, unpub. data).
EXAMPLES OF HYDROTHERMAL
PHOSPHATE MINERALS
AS CHRONOMETERS IN
OROGENIC GOLD DEPOSITS
Yilgarn craton, Western Australia
The main gold event in the eastern
Yilgarn craton has been described as
occurring between ca. 2.650 and 2.625
Ga (Groves et al., 2000). However, due
to the general lack of direct dating, the
exact age of gold mineralization remains
controversial; for example, interpretations
by Yeats et al. (1999) are in conflict
with those of Vielreicher et al. (2001).
At the Cleo gold deposit, in the northeast
Yilgarn, hydrothermal xenotime
and monazite occur in altered wall rock,
adjacent to ore veins in the Western
Lodes (Brown et al., 2002). These structurally
late, multistage, and brecciated
veins typically contain native gold, electrum,
pyrite, arsenopyrite, tennantite,
and telluride minerals, and formed at
about 300°C. Monazite (with inclusions
2680
2660
2640
2620 2600 2580
Laverton Region
Granny Smith granodiorite: pre-gold
Mt Morgans rhyolitic dike: pre-syn gold
rhyolitic dike: pre-syn gold
Mt Weld
Sunrise / Cleo
Ar/Ar fuchsite
Ar/Ar phlogopite
Kambalda Region
K-Ar carbonatite
Paringa Basalt: pre-gold
rhyodacitic dike: pre-gold
Sunrise shear zone: pre-gold
vein molybdenite: pre-gold
monazite: syn-gold
xenotime: syn-gold
kersantite: pre-gold
quartz-albite dike: pre-gold
* maximum age for sedimentation
Re/Os molybdenite
U/Pb zircon
U/Pb monazite
Kambalda granodiorite: pre-gold
Merougil Sequence: pre-gold*
quartz-albite dike: pre-gold
rutile: syn-gold
monazite: syn-gold
of altaite) and xenotime occur as free
grains or are included in ore-related
pyrite. Brown et al. (2002) concluded
that the two phosphate minerals were
deposited during gold mineralization,
and that their age provides a direct date
for gold mineralization. The monazite
and xenotime at Cleo have relatively
low U contents (Brown et al., 2002),
consistent with a hydrothermal origin.
In situ SHRIMP analyses of monazite
grains yield concordant analyses with a
weighted mean 207 Pb/ 206 Pb age of 2658
± 27 Ma (large error due to low U;
Brown et al., 2002). The monazite age is
indistinguishable from that obtained
from in situ SHRIMP analyses of coexisting
hydrothermal xenotime (2654 ± 8
Ma; Brown et al., 2002).
Dates from the phosphate minerals
in Western Lodes at Cleo are consistent
with available maximum age constraints,
including a SHRIMP U-Pb in
zircon age of a rhyodacitic dike that
predates the Western Lodes, an Ar/Ar
plateau age of fuchsite from the Sunrise
shear zone which is cut by the Western
Lodes, and a Re-Os molybdenite age from
early quartz-chalcopyrite-molybdenite
veins that pre-date gold in the Western
Lodes (Brown et al., 2002; Fig. 5A). However,
as for most gold deposits
carbonatite
post-gold
2064+/-40
lamprophyre
post-gold
2080+/-4
U/Pb xenotime
U/Pb rutile
Ma
2680 2660 2640 2620 2600 2580 Ma
FIGURE 5. Comparison of phosphate 207 Pb/ 206 Pb
SHRIMP ages for gold mineralization with other available
timing constraints in (A) the Laverton region and
(B) the Kambalda region in the eastern Yilgarn craton,
Western Australia (data from Brown et al., 2002;
Nyugen, 1997, and references therein).
A
B
in the Yilgarn craton, the minimum
age of mineralization
at Cleo is poorly constrained.
In the Kambalda region,
hydrothermal monazite is
described in gold-bearing,
quartz-pyrite veins in mafic
rocks containing dioritic xenoliths
at Revenge. The veins are
interpreted to be the result of
fault-valve action with brittle
shear failure in, and extension
failure adjacent to, a conjugate
set of shear zones
(Nguyen, 1997). Gold-related
alteration and mineralization
is similar to that observed in
the neighbouring Victory-
Defiance deposit, and is interpreted
to have formed at
about 400°C. Hydrothermal
monazite from high-grade
quartz veins is typically undeformed,
unzoned, and clear,
with multiple randomly oriented
inclusions (pyrite,
quartz, feldspar, and chalcopyrite).
Rare older monazite
is distinct in its dark coloration
and is variably zoned
and deformed. SHRIMP analyses
of hydrothermal monazite
206 238
Pb / U
0.58
0.54
0.50
0.46
Hydrothermal Monazite
Revenge Gold Deposit
Western Australia
2500
2600
2700
10 11 12 13 14
207 235
Pb /
2750
Weighted mean = 2631 ± 9 Ma (2 σ)
n = 10; MSWD = 0.6
FIGURE 6. Concordia plot showing ion
microprobe U-Pb data (with 1 σ errors) for
hydrothermal monazite from a gold-bearing
quartz-pyrite vein at the Revenge gold
deposit, Western Australia (data selected
from Nguyen, 1997).
yield a weighted mean 207 Pb/ 206 Pb age
of 2631 ± 9 Ma (95% confidence level;
Fig. 6), which is within error of the TIMS
age of hydrothermal rutile from the
nearby Victory gold deposit (Clarke
et al., 1990), and is younger than the
youngest dated pre-ore rock in the
region (Figure 5B).
Prior to the hydrothermal phosphate
dates from Cleo and Revenge, estimates
for the age of gold mineralization in the
Yilgarn were not sufficiently accurate or
precise to allow regional comparison of
the timing of gold mineralization.
Diachronous orogenic gold mineralization
over approximately 40–60 m.y. has
been proposed by Yeats et al. (1999).
The new phosphate age data support
the notion that the main stage of orogenic
gold mineralization was
diachronous, but over a much shorter
time period (

14 SEG NEWSLETTER No 53 • APRIL 2003
... from 13
Hydrothermal Monazite and Xenotime Geochronology (Continued)
depositional age (1863 ± 7 Ma) of the
host graywacke. Older detrital zircons
were also recorded. Another group of
concordant zircon analyses was interpreted
to be of hydrothermal grains,
because their mean 207 Pb/ 206 Pb age of
1817 ± 16 Ma is similar as that
obtained from monazite and xenotime
grains (1810 ± 10 Ma). Interestingly, the
monazite analysed by Compston and
Matthai (1994) has a wide range of
both U concentrations (350 ppm to over
2,500 ppm) and individual ages, which
include older (~1900 Ma) and younger
(1831–1624 Ma) analyses (see discussion
in Şener et al., in press). Despite
this variability, and in the absence of
petrographic control, all phosphate
grains were interpreted by the authors
to belong to the same generation and to
be related to gold mineralization. The
similarity of the dates of the interpreted
hydrothermal zircon, monazite, and
xenotime with that of the Cullen
Batholith (1835 Ma to 1800 Ma; Stuart-
Smith et al., 1993) was used to support
the genetic relationship between gold
mineralization and felsic magmatism.
More recent dating of hydrothermal
monazite (Şener et al., in press) does not
support the results obtained by
Compston and Matthai (1994).
Monazite associated with pyrite and
gold in a quartz vein (Fig. 3B) from the
Goodall gold deposit was analysed in
situ. The Goodall monazite grains are
generally low in U (110–730 ppm), and
the mean 207 Pb/ 206 Pb age of ca. 1.75
Ga, despite a large uncertainty (±40 Ma
due to the low U contents), indicates
that gold mineralization postdates the
Cullen batholith. In the light of these
recent results, Şener et al. (in press) suggest
that the phosphate grains analysed
by Compston and Matthai (1994) could
have included older contact-metamorphic
grains that were incorporated into
the vein during its formation. Contactmetamorphic
monazite and xenotime
from this area have been analyzed by
SHRIMP and have similar mean
207Pb/ 206 Pb ages (1833–1814 Ma;
Rasmussen et al., 2001) to that
obtained by Compston and Matthai
(1994).
Ghana
Gold in Ghana is produced from either
paleoplacer (e.g., Tarkwa) or orogenic
gold deposits, including the giant
Obuasi deposit (e.g., Oberthür et al.,
1994; Allibone et al., 2002). Initially, it
was suggested that the paleoplacer deposits
were produced from weathering
and erosion of the lode gold deposits
(e.g., Kesse, 1985). However, detailed
structural and geochronological studies
negate this (e.g., Allibone et al., 2002).
At the Damang gold deposit, epigenetic,
orogenic-style gold mineralization
clearly overprints low-grade paleoplacer
hematite-magnetite gold occurrences in
Tarkwaian-age conglomerates (Pigois et
al., in press). Hydrothermal xenotime
(Fig. 1E) intergrown with hydrothermal
biotite and Fe carbonate in alteration
halos around auriferous quartz veins in
both conglomerate and basalt has been
dated using SHRIMP. The xenotime date
(2063 ± 9 Ma; Pigois et al., in press) provides
the first precise age constraint for
orogenic gold in Tarkwaian rocks.
IMPLICATIONS FOR EXPLORATION
Monazite and xenotime have been
shown to provide robust, precise geochronometers
applicable to the dating
of orogenic gold deposits. Understanding
the temporal framework for ore-systems
contributes significantly to genetic and
exploration models, and provides a
sound basis for comparative studies
between different ore systems. A precise
age for any mineralization event also
provides a means for direct correlation
with the local and regional geological
and tectonic history. It can form a basis
for identification of critical associations
that can be used in exploration programs
at all scales, and the prospectivity
of terranes, rock sequences, and
structures of different ages can be better
assessed. For example, a consequence of
the lack of temporal relationship
between gold mineralization and felsic
magmatism in the Pine Creek orogen
(Şener et al., in press) is that exploration
should not be restricted to contact
aureoles of granites such as the
Cullen batholith. In other cases, confirmation
of a temporal relationship
between mineralization and a particular
suite of granitoids might provide a
critical exploration indicator.
Chemical classification of phosphate
minerals can also allow correlation of
xenotime of different ages with different
events within the same area. As such,
there is the potential for unravelling,
both temporally and genetically, complex
multistage deposits.
CONCLUSION
Hydrothermal monazite and xenotime
are common accessory minerals in
orogenic gold deposits formed under a
range of temperatures and pressures,
and are commonly intimately associated
with ore or ore-related alteration
minerals. In many places monazite and
xenotime coexist, thus allowing for a
multimineral approach to dating of
mineralization. Such an approach can
confirm the isotopic robustness of either
phase, and provide extra confidence in
the final calculated date. Phosphate
dating complements existing
geochronometers and adds an important
and common mineral group to the
list of datable minerals currently used
to constrain the timing of ore formation
in a variety of settings.
ACKNOWLEDGMENTS
The authors thank S.M. Brown, G.C.
Dawson, G.L. England, C. Grainger, N.
Kositcin, J-P. Pigois, K.C.J. Pires, B.P.
Salier, A.K. Şener, F.H.B. Tallarico, and
D.A. Vallini for access to results prior to
publication. Staff of the CMM at UWA,
Marion Marshall, AMIRA and ARC support
is acknowledged. The manuscript
benefited from detailed and constructive
comments by J.K. Mortensen, J.
Richards, R. Vielreicher, N. White, and
an anonymous reviewer.
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APRIL 2003 • No 53 SEG NEWSLETTER 15
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to page
B., 2001, Dating
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16 SEG NEWSLETTER No 53 • APRIL 2003
... from 15
Hydrothermal Monazite and Xenotime Geochronology (Continued)
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351–363. 1
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APRIL 2003 • No 53 SEG NEWSLETTER 17
SEG Contributions
12/1/02–2/27/03
ALLARD, GILLES, USA
ANZALONE, S.A., USA
ARDILA M., RICARDO J., CHILE
ARPS, CHARLES, NETHERLANDS
ARRIBAS, ANTONIO M., SPAIN
ASPAJO V., HECTOR A., PERU
BANKS, DAVID A., GREAT
BRITAIN
BARTON, JR., PAUL B., USA
BARTON, MARK, USA
BEALE, TIMOTHY, PERU
BEDELL, JR., RICHARD L., USA
BELTHER, JONES, BRAZIL
BERNSTEIN, MERWIN, CHILE
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BROCKIE, DOUGLAS C., USA
BROWN, CALVIN C., USA
BROWN, SEVERN P., USA
BRUMMER, JOHANNES J.,
CANADA
BRYANT, DONALD G., USA
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BURT, DONALD M., USA
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CHAKU, SURENDER, AUSTRALIA
CHARLES P. MILLER, USA
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18 SEG NEWSLETTER No 53 • APRIL 2003
SEG NEWS
2002 Thayer Lindsley Lecturer Tour
I appreciate the opportunity that the
Society of Economic Geologists provided for
me to travel to 12 sites in the United States,
Canada, and Mexico to make research presentations
as the 2002 Thayer Lindsley
Lecturer. In view of the Society’s emphasis
on supporting student chapters, presentations
were designed to be of particular
interest to university audiences, although
presentations were also made to professional
groups at mine and other mineral
industry sites.
I made 17 presentations, roughly
divided between “The Economic Geology of
Microbes: Relation between Mineral
Resources and Bacterial Processes” and
“The Giant Pliocene Porphyry-skarn
Copper-gold Deposits, Ertsberg District,
Papua, Indonesia: Exploration, Production,
and Research in a Challenging
Environment.” A third talk on “The Rise
and Fall of an Industrial Minerals Giant: A
Century of Fire and Brimstone” was not
presented on the tour.
The tour was intended to be in the
spring and was initiated by an Ertsberg district
lecture to the Grupo Mexico geology
staff and the field trip participants at
Cananea in conjunction with the porphyry
copper field course following the Global
Exploration Meeting. Thanks to Ramón
Ayala and staff for their hospitality and to
Bill Chávez and Spence Titley for offering
this popular field course once again. The
other invitations to speak were delayed
until the fall when they were organized
into a series of week-long tours in the
United States and Canada, separated by
periods in Austin to allow me to handle the
obligations of my day job.
The “microbes and ores” talk focused on
the role of bacterial processes in the development
of mineral resources in sedimentary
basins, particularly as related to sulfur supply
for metallic and industrial minerals.
The role of microbes in mineral precipitation
is a popular topic, but the development
of commercial-scale orebodies requires
assessment of additional issues beyond laboratory
or short-term studies of modern
microbial systems. The multimedia presentation
built on mineralization systems in
young sedimentary basins where diverse
bacterial effects can be convincingly established,
progressively moving into older and
more economically significant ore systems.
The presentation addressed the enigma of
the low-temperature restrictions for effective
microbial production vs. other lines of evidence
for higher temperatures for the oreforming
fluids.
The Ertsberg talk presented an overview
of the physical and social issues related to
exploration for and development of one of
the world’s great ore concentrations, as an
example of the challenges with which the
mining industry deals. The review commenced
with the 1936 expedition led by J.
J. Dozy and the discovery of the Ertsberg
skarn deposit, progressed to the commitment
of Freeport in the late 1960s to
develop this remote district, and the discovery
and fast-track development of the
remarkable Grasberg Cu-Au orebody starting
in 1988. Freeport-McMoRan has provided
an exceptional opportunity for
University of Texas professors, research scientists,
and graduate students to investigate
diverse geologic aspects of this little
known region. Among research aspects of
the presentation, a popular segment
included a quicktime movie of a high resolution
X-ray computed tomography study
of the 3-D distribution of Au grains in
Grasberg ore (now available on-line at
).
The first autumn tour was to Tennessee
where I visited with long-time associates at
the University of Tennessee at Knoxville at
the invitation of Kula Misra. Then to
Cookeville to address an undergraduate
group with mineral resources interests, at
the invitation of Wayne Leimer at
Tennessee Tech, followed by a discussion
about graduate schools and employment
opportunities in the resource industries. In
between, Steve Bruton and Pasmnico generously
provided a personalized tour of the
Gordonsville mine, the keystone of the central
Tennessee zinc district, where I began
my career focus on mineral resources in
sedimentary basins.
The next tour was to eastern Canada,
starting with a talk at Université Laval in
Quebec City at the invitation of the newly
formed SEG student chapter, where I was
generously hosted by Patrick Mercier-
Langevin and Valérie Bécu. This visit also
provided the opportunity to learn about
recent exploration and research activities
in the eastern Shield provided by the students,
Georges Beaudoin and Benoît Dubé.
Moving westward, I next visited Carleton
University in Ottawa at the invitation of
George Dix, then on to the University of
Toronto at the invitation of Yannick
Beaudoin and Andrew Conly of the SEG
student chapter. This stop provided a
chance to visit with Ed Spooner and Steve
Scott about their latest research activities,
as well as the opportunity for a lively
discussion with
Grant Ferris and his
research group on
diverse microbial
issues in geological
processes. The last
stop was at the
University of
Western Ontario at
the invitation of
Erika Greiner and
the SEG student
chapter where I
J. RICHARD KYLE
SEG 1983 F
Jackson School of
Geosciences,
The University of
Texas at Austin
presented both talks back to back. It was
good to see Bob Hodder and Norm Duke on
my first visit to London in two decades.
The next trip vector was northwesterly,
starting at Oregon State at the invitation of
John Dilles and Mark Reed. Then on to
Vancouver at the request of Dick Tosdal at
the Mineral Deposits Research Unit of the
University of British Columbia. Dick
arranged the Ertsberg talk for a downtown
venue to accommodate the exploration
community, followed by the microbes and
ores talk at the university. Then across the
mountains to Edmonton for both talks at
the University of Alberta hosted by Jeremy
Richards and Sarah Gleeson. This
extended visit allowed opportunity for discussions
with Jeremy on Grasberg – Porgera
issues and with Sarah on sedimentary
basin ore genesis.
With my travel budget ebbing away, my
last trip was to New Mexico Tech and the
University of Utah, at the invitation of my
international field trip cohorts, Bill Chávez
and Erich Petersen, respectively. Both
locales requested by both talks, the least I
could do in appreciation for many past
favors provided by Bill and Erich for my
students and me. SEG chapter students and
faculty once again provided exceptional
hospitality and the opportunity to learn
about current research.
The Thayer Lindsley lecture tour went
by quickly, affording me a chance to visit a
lot of friends I had not seen recently and to
learn about exciting research being done in
mineral resources geology at many universities.
It also provided the opportunity to
promote SEG to general student groups and
to other non-members, including providing
membership information and the SEG
Newsletter. Thanks to everyone, and especially
the SEG student chapters, who provided
exceptional hospitality during the
tour. Thanks to SEG for the honor of making
these presentations on applied ore
deposits geology research in memory of
Thayer Lindsley. 1

APRIL 2003 • No 53 SEG NEWSLETTER 19
SEG’s Centenarian
Editor’s note: On September 14, 2002, SEG’s eldest member, Adolf Helke,
celebrated his 100 th birthday. We asked Dr. Helke to write up a short biography
with the highlights of his career so that we could share them with Newsletter readers.
Below is the text he sent along for inclusion.
I was born on September 14, 1902, in
the village of Hochweitzschen in
Saxony, Germany. I studied at the
School of Mines (Bergakademie)
Freiberg. From the outset I was more
interested in mineralogy and economic
geology than in problems of mining
engineering. For my 1930 diploma I
submitted a thesis on a fluviative gold
placer underground in Karst caves in
the Taurus Mountains near Ulukisla,
southern Turkey.
Beginning in 1930, I studied the
epithermal gold deposits near Stanija,
in the Apuseni Mountains of Rumania,
and defended my doctoral dissertation
on this subject on March 12, 1932, at
the School of Mines in Freiberg. Later, I
extended the scope of my interest to all
ore deposits of the Carpathian arc ranging
through Slovakia and Romania.
The results of this work are published in
a book entitled “Die jungvulkanischen
Gold-Silbererzlagerstätten des
Karpathenbogens, unter besonderer
Berücksichtigung der Genesis und
Paragenesis des gediegenen Goldes” –
Archiv für Lagerstättenforschung, Heft
66. (herausgegeben von der Preuß.
Geolog. Landesanstalt, Berlin 1938)
In 1937 and 1938, I worked for the
Geological Survey (Maden Tetkik ve
Arama Enstitüsü) in Ankara. On their
behalf I studied the chromite deposits
near Guleman. In order to include all
the different types of chromite deposits,
I called the Guleman district “Die osttürkische
Chromitporvinz.” I also studied
the well-known copper deposit,
Ergani Maden, in the valley of the
Tigris, as well as better known ore
deposits in the eastern part of Turkey.
During the academic year 1938-
1939, I had a postdoctoral fellowship
at the Johns Hopkins University in
Baltimore, Maryland. Following this, I
undertook a trip to visit all active ore
deposits in the western United States,
from the Canadian to the Mexican
borders.
Unsettled by
the outbreak of
hostilities in
Europe, I returned
to my home country
early in 1941
via Japan and
Siberia. I returned
to the School of
ADOLF HELKE
SEG 1939 SF
Mines in Freiberg. However, in the late
summer of 1941, I was drafted into the
army as a military geologist
(Wehrgeologe). In this capacity I saw
four years of war and two years as a
prisoner of war.
In 1949 I again went to Turkey,
where I taught mineralogy and geology
at the Mining College (Teknik Okul) in
Zonguldak. In 1955 I received an
appointment as instructor in mineralogy
and petrography at the University
of Mainz, Germany. In 1962, I was
appointed to the rank of professor. I
continued in this function until I
reached the age of 92. 1
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20 SEG NEWSLETTER No 53 • APRIL 2003
SEG STUDENT CHAPTER NEWS
SEG NEWS
LAURENTIAN UNIVERSITY
SECONDARY TEACHER
WORKSHOP A SUCCESS
The Student Chapter of SEG and the Laurentian
University Department of Earth Sciences (LU-DES)
contacted the Rainbow district school board about
the possibility of running a geoscience education
workshop for interested secondary school teachers.
The workshop was held on the afternoon of January
9, with teachers from 12 secondary school geography
departments and two administrators in attendance.
Laurentian earth science department staff,
Ontario Geological Survey representatives, and student
chapter members gave presentations. Many
teachers made positive comments and expressed
interest in having further interaction between the
high schools and the university. In fact, the administrators
spread the word to other school departments,
and now teachers in other disciplines are
pursuing opportunities for various university
departments to hold similar workshops.
For complete text, go to the website:
http://www.segweb.org/SCReport-LUWorkshop.pdf
UNIVERSITY OF TORONTO
The chapter held a diamond workshop with
Professors Daniel Schulze (University of Toronto)
and Herb Helmstaedt (Queen’s University) giving
hands-on opportunity for petrographic examination
of various host rocks and diamonds. The collection
included samples from well known diamond districts.
Fifteen industry participants and three students
(a free-for-students workshop was presented
earlier in January) attended. The workshop complemented
a lecture-based course given at the
Prospectors and Developers Conference (PDAC) the
following day.
Participants of the 2003 chapter short course on diamond exploration.

APRIL 2003 • No 53 SEG NEWSLETTER 21
Economic Geology — An Invited Commentary on Journal Papers
Donald F. Sangster (SEG 1973 F)
The Carbonate-hosted Lisheen Zn-Pb-Ag Deposit,
County Tipperary, Ireland
(M. W. Hitzman (SEG 1978 F), P. B. Redmond (SEG 1997 S), and D. W. Beaty (SEG 1986 F)
The Lower Carboniferous carbonate
rocks of Ireland host one of the world’s
major base metal districts, and this
paper, by Hitzman et al. (Economic
Geology, v. 97, 2002), is the first comprehensive
description of Lisheen, the second-largest
of the Irish Zn-Pb deposits
(after Navan). The paper presents new
information and data on the structural
controls of mineralization and
hydrothermal alteration, type, and distribution
of hydrothermal dolomite, sulfide
petrography and paragenesis,
metal zonation, constraints on age of
mineralization, and the space-time evolution
of the Lisheen mineralizing system.
The authors assert that the Irish
orefield will be important to readers of
Economic Geology because “...of the
influence that studies of Irish-type
deposits have had on the development
of genetic models for sediment-hosted
deposits worldwide...” (Hitzman et al.,
2002, p. 1627–1628).
Although the paper is based mainly
on information derived from drill core
obtained prior to the start of underground
operations in 1997, the work is
particularly significant because it presents
important information with
respect to three features: (1) the nature
of the process(es) responsible for an
increase in pre-mineralization permeability
of host rocks; (2) the spatial and
genetic relationship between structure
and mineralization; and (3) a detailed
description of the “black matrix breccia”
(and its postulated origin) which so
closely accompanies mineralization at
Lisheen.
Addressing the first of these features,
the authors consider the issue of
regional dolomitization. In southcentral
Ireland, a Lower Carboniferous
mudbank complex (the Waulsortian
Limestone) has been completely
dolomitized on a regional scale, and
Lisheen lies within the westernmost
margin of this zone of dolomitization.
With the use of an electronic field
permeameter, Hitzman et al. (2002)
present quantitative data illustrating
that the pre-ore regional dolomite possesses
permeability (mean = 0.22 millidarcies)
10 times that of undolomitized
Waulsortian limestone (mean = 0.2 millidarcies).
With the use of bore-hole
pumps, larger-scale measurements
reflecting fracture permeability show
regional dolomite to be up to 10 2 times
more permeable than the limestone,
although the authors admit much of
the fracture permeability might be the
result of post-ore jointing and fracture
enlargement. Nevertheless, the data are
the first (to this reviewer’s knowledge)
actual permeability measurements of
regional dolomite in the area. The
authors regard the higher permeability
of the dolomitized Waulsortian to be an
important feature that permitted the
ingress of mineralizing fluids.
The second feature, the relationship
between faulting and mineralization, is
well illustrated by Hitzman et al. (2002)
and, in this reviewer’s opinion, is the
main strength of the paper. The Lisheen
area is dominated by four major eastwest
normal faults, all of which are
downfaulted to the north, and which
have displacements of up to 220 m.
Zones between these major faults are
broken by normal east-west and northsouth
faults with significantly less displacement.
The spatial relationships
between these faults and several mineralization
parameters are well illustrated
by several diagrams. For example, the
thickest and highest grades of Zn-Pb
mineralization and most of the
hydrothermal alteration occur in the
hanging wall of the major faults.
Sulfide thickness, together with iron,
zinc, and lead grades, all increase
toward one or another of the major and
minor faults. Moreover, mineralization
associated with normal faulting is not
restricted to the immediate Lisheen
area. A large normal fault controls
location of the G orebody at Galmoy,
6 km northeast of Lisheen, and similar
normal faults occur 20 km farther to
the northeast at the subeconomic
Derrykearn deposit. In the opposite
direction, 10 km southwest of Lisheen,
another normal fault system is associated
with hydrothermal dolomitization
similar to that at Lisheen. These observations,
taken together, indicate that
the Lisheen fault system is part of a
larger northeast-trending system ~40
km in length. The authors suggest the
faulting was controlled by reactivation
of northeast-trending Caledonian basement
structures. Evidence is presented to
support the concept that the faulting
was synsedimentary in nature, beginning
in the late Courceyan and continuing
into the Chadian, and that most of
the displacement took place prior to
mineralization.
The third mineralization parameter
is wall-rock alteration as exemplified by
the “black matrix breccia” which is
probably the most distinctive feature of
the Lisheen deposit. The significance of
the black matrix breccia is that most of
the ore sulfides are in direct contact
with it, usually within the boundaries of
the essentially concordant breccia bodies.
In the discussion of genesis, the
authors contend that hydrothermal fluids
produced both the “dolomitematrix”
breccia and sulfides. The black
matrix breccia is suggested to have
formed by wall-rock replacement and
precipitation in open spaces of black
dolomite crystals, perhaps triggered by
movements along the Lisheen fault system
and solution collapse.
Alternatively, a debris flow origin for
similar dolomite breccias at the
Silvermines deposit (~30 km west-northwest
of Lisheen) was suggested by
Mullane and Kinnaird (1998).
The complexity of the various breccias
present in the Irish Pb-Zn deposits
was highlighted recently by Lee and
Wilkinson (2002)
to page
who, on the basis of 22 ...
Economic Geology Commentary

22 SEG NEWSLETTER No 53 • APRIL 2003
... from 21
Economic Geology Commentary (Continued)
Economic Geology Commentary
observations made primarily on the
subeconomic, and, most importantly,
relatively undolomitized Cooleen zone
(near Silvermines), have recognized five
main breccia types. Their type I polymictic
and roughly concordant breccia is
“...interpreted to have formed through
episodic, fault-controlled synsedimentary
slumping to create debris flows during
formation of the Waulsortian mudbanks...”
(Lee and Wilkinson, 2002, p.
659). Their type III breccia is described
as comparable to the black matrix breccia
at Lisheen and is regarded by these
authors as being originally a type I breccia
that has been overprinted and
altered by regional dolomitization and
hydrothermal processes. The conclusions
of Lee and Wilkinson (2002) are
challenged by Reed and Wallace (2003)
but are stoutly defended by Wilkinson
and Lee (2003). Obviously there is no
consensus at this time.
Whether the Lisheen BMB is of
hydrothermal (Hitzman et al., 2003) or
synsedimentary origin (Lee and
Wilkinson, 2002) does not alter the fact
that these bodies are closely associated
with sulfides and, therefore, will continue
to offer exploration targets many
times the size of the associated orebodies.
However, if future detailed studies of
the Lisheen black matrix breccia confirm
the synsedimentary origin of these
breccias, the significance of the regional
dolomitization and the resulting
increase in permeability to facilitate the
flow of hydrothermal fluids will be
reduced. Hydrothermal fluids, instead,
will be seen as favoring the highly permeable
debris flows and forming sulfide
bodies by open-space filling and
replacement of these bodies.
Hitzman et al. (2002) conclude that
formation of the Lisheen orebody
required the following: (1) the presence
of suitable host rocks; (2) an effective
plumbing system; and (3) metalliferous
NOTE:
hydrothermal fluids. The first of these,
the regional dolomitization, occurred
no earlier than the Chadian and
resulted in a significant increase in
porosity and permeability. Regional
dolomitization is considered to have
controlled the size and geometry of the
Lisheen deposit. The second, synsedimentary
normal faulting during late
Courceyan to Chadian provided the
necessary channels for ingress of
hydrothermal fluids. Although the
nature of the hydrothermal fluids is not
fully clear, they appear to have been
somewhat acidic, and caused initial formation
of the Lisheen breccias followed
by sulfide precipitation. Mineralization
is estimated to have occurred “...at least
10 m.y. after deposition of the
Waulsortian complex host rocks”
(Hitzman et al., 2002, p. 1653).
One final note deserves attention:
Hitzman et al. (2003) allude to the difficulty
in correlating radiometric dates
and stratigraphic ages in the
Carboniferous time scale, and three different
time scales proposed by George et
al. (1976), Haq and van Eysinga (1998),
and Okulitch (1999), vary by up to 10
m.y. in the absolute positioning of the
various stratigraphic boundaries. These
uncertainties have led to some confusion
in the literature over the timing of
mineralization in the Irish Zn-Pb
deposits (e.g., Lee and Wilkinson, 2002;
Boyce et al., 2003). It is suggested that
improved absolute age definition of this
part of the Carboniferous time scale
would help resolve some of the outstanding
controversies regarding these
important base metal deposits.
REFERENCES
Boyce, A.J., Little, C.T.S., and Russell, M.J.,
2003, A new fossil vent biota in the
Ballynoe barite deposit, Silvermines,
Ireland: Evidence for intracratonic sea-floor
hydrothermal activity ~352 Ma: Economic
Geology, v. 98, in press.
George, T.N., Johnson, G.A.L., Mitchell, M.,
Prentice, J.E., Ramsbottom, W.H.C.,
Sevastopulo, G.D., and Wilson, R.B., 1976,
A correlation of Dinantian rocks in the
British Isles: Geological Society of London
Special Reports 7, 87 p.
Haq, B.U. and van Eysinga, F.W.B., 1998,
Geological time scale—fifth edition:
Amsterdam, Elsevier Science.
Hitzman, M.W., Redmond, P.B., and Beaty,
D.W., 2002, The carbonate-hosted Lisheen
Zn-Pb-Ag deposit, County Tipperary,
Ireland: Economic Geology, v. 97, p.
1627–1655.
Lee, M.J. and Wilkinson, J.J., 2002,
Cementation, hydrothermal alteration,
and Zn-Pb mineralization of carbonate
breccias in the Irish Midlands: Textural evidence
from the Cooleen zone, near
Silvermines, County Tipperary: Economic
Geology, v.97, p. 653–662.
Mullane, M.M. and Kinnaird, J.A., 1998,
Synsedimentary mineralization at the
Ballynoe barite deposit, near Silvermines,
Co. Tipperary, Ireland: Transactions of the
Institute of Mining and Metallurgy, v.107,
p. B48–61.
Okulitch, A.V., 1999, Geological time scale,
1999: Geological Survey of Canada Open
File 3040, National Earth Sciences Series,
Geological Atlas.
Reed, C. and Wallace, M., 2003,
Cementation, hydrothermal alteration,
and Zn-Pb mineralization of carbonate
breccias in the Irish Midlands: textural evidence
from the Cooleen zone, near
Silvermines, County Tipperary—a discussion:
Economic Geology, v. 98, 191–193.
Wilkinson, J.J. and Lee, M.J., 2003,
Cementation, hydrothermal alteration,
and Zn-Pb mineralization of carbonate
breccias in the Irish Midlands: textural evidence
from the Cooleen zone, near
Silvermines, County Tipperary—a reply;
Economic Geology, v. 98, 194–198. 1
Commentary that appears in this column is
solicited by the technical editor.
Dr. Sangster retired from the Geological
Survey of Canada in 1997; he is a past
President of SEG.
All SEG members take note of their membership
numbers on the mailing label of the Newsletter
for access to the SEG on-line offerings!

APRIL 2003 • No 53 SEG NEWSLETTER 23
EXPLORATION REVIEWS
ALASKA
Regional Correspondent: Curtis J. Freeman
(SEG 1996)
Avalon Development Corp.
P.O. Box 80268
Fairbanks, AK 99708
Tel. +907.457.5159 Fax +907.455.8069
E-mail: avalon@alaska.net
Website: www.avalonalaska.com
Despite the drop in gold prices since
they peaked a month ago, exploration
activities in Alaska are picking up.
Contracts for drilling rigs, helicopters
and experienced geologists are being
finalized at a rate not seen here in half
a decade. In addition, Alaska’s new
political administration is aggressively
encouraging infrastructure development
and making regulatory improvements
to help Alaska’s mineral industry
grow. Alaska’s total mineral industry
value topped the $1 billion level for the
sixth straight year in 2002. Production
value was $968.2 million, development
value was $33.5 million and exploration
value was $25.0 million, bringing
the year-end mineral value to
$1,026,700,000. With gold and platinum
prices now at 7 and 20 year highs
and with silver and nickel prices up significantly,
the industry is looking to
2003 as a turn-around year.
WESTERN ALASKA
Teck Cominco American announced
fourth quarter and year-end 2002
results from its Red Dog mine. In the
fourth quarter, the mine produced
157,300 tonnes (t) of zinc in concentrate
and for the year the mine produced
578,400 t of zinc in concentrate. Zinc
ore grade and mill recoveries increased
significantly to 21.6% and 84.5% from
19.8% and 78.9%, respectively, in the
year previous quarter. The mine posted
a $10 million operating loss for the
quarter and a $28 million operating
loss for the year, thanks in large part to
continued low zinc prices which averaged
$0.35 per pound.
The eagerly awaited decision finally
came and in the end surprised nobody.
NovaGold Resources announced that
Placer Dome has elected to increase its
interest in the 27.8-oz Donlin Creek
gold project by 40% (to 70%). In order
to acquire this additional interest
Placer Dome must expend $30 million
on project development, complete a feasibility
study and make a decision to
construct a mine that produces at least
600,000 oz of gold per year, all this by
November 13, 2007. NovaGold would
not be required to contribute additional
funding until after the fist $30 million is
spent and may elect to have Placer
Dome arrange financings for Nova
Gold costs related to mine construction.
The companies are on-track to complete
a revised resource estimate based on all
of the drilling completed in the last year
and to develop plans to address the project’s
power and access needs.
TNR Resources reported on final
drilling results from its Rock Creek gold
project under option from NovaGold
Resources in the Nome district. Drill
highlights include hole 101 with 34 m
grading 1.61 gpt gold, including 2 m at
17.09 gpt gold, hole 102 with 61 m
grading 1.50 gpt gold, including 4 m at
5.12 gpt gold, hole 105 with 88 m grading
1.27 gpt gold, hole 115 with 8 m
grading 3.55 gpt gold and 12 m grading
4.03 gpt gold, and hole 116 with 116.3
m grading 1.73 gpt gold, including 16
m grading 3.05 gpt gold and a separate
interval of 28 m grading 4.60 gpt gold.
The companies are planning to complete
a comprehensive independent preliminary
economic assessment study
and to calculate updated gold resources
on the project by June of 2003.
EASTERN INTERIOR
Kinross Gold reported a successful year
of exploration at its Fort Knox mine in
the Fairbanks district in 2002. The company
indicated that it recovered
410,520 oz of gold at a cash cost of
$232/oz and added 623,000 oz to new
reserves as a consequence of renewed
exploration drilling and revised engineering/mining
techniques. In 2002
the operation mined 19.1 tons of material
using a staff of 388 people, an
activity that is expected to rise in 2003
to 33.5 Mt mined with a staff of 425
people. Projected production for 2003
from the combined Fort Knox and True
North open pits is 408,000 oz Au.
Exploration spending by the company
also is expected to increase in 2003 to
$3.5 million.
Teryl Resources (20%) and Kinross
Gold (80%) announced preliminary
results from the 2002 drilling and
trenching program on their Gil project
in the Fairbanks district. Although
additional results are still pending, a
new zone of mineralization was discovered
at the Sourdough Ridge prospect
where drilling intercepted 15 ft grading
0.49 oz Au/t (16.80 g Au/t) including a
5-ft section grading 1.34 oz Au/t (45.94
g Au/t). This new zone is associated
with anomalous arsenic and bismuth
hosted at the contact between overlying
but barren calc-silicate altered metamorphic
rocks in thrust-contact with
underlying sericite-altered muscovite
schist.
Rimfire Minerals and AngloGold
USA Exploration announced results
from exploration on Rimfire’s ER-Ogo-
Fire and Eagle properties in the
Goodpaster district. A gold auger soil
anomaly measuring 1,500 × 300 m was
outlined at ER-Ogo-Fire. Gold is associated
with elevated arsenic, bismuth and
antimony and the anomaly remains
open to the north. An orientation soil
auger survey was conducted on the
Eagle property, targeting the intrusivegneiss
contact in two small areas east of
a grid sampled in 1999. The new soil
sampling adds over a kilometer to the
soil anomaly defined in 1999. The
auger sampling technique has proven
to be effective in penetrating the loess
cover to obtain a better quality sample.
Loess, or wind-blown silt, is unevenly
distributed over the Eagle property and
its existence masks the geochemical
response of bedrock mineralization.
Continental Ridge Resources Inc.
announced that AngloGold USA
Exploration completed a three-hole,
1,088-m diamond-drilling program to
test the Hook prospect on its Gobi property
in the Goodpaster district. The
Hook target is a 100-m-wide zone of
gold mineralization hosted by a newly
mapped granodiorite intrusion near its
contact with surrounding gneissic metamorphic
rocks. Multiple sericite-altered
quartz-veined zones were intersected in
hole AGGP-1. The best assay results
returned 3 m grading 1.05 g Au/tonne
including 0.5 m grading 5.26 g Au/t.
The company indicated that additional
drilling is anticipated for the Gobi property
in 2003.
Alaska newcomer Geologix
Exploration acquired an interest in the
Macomb gold project
from Teck Cominco to page 24 ...
EXPLORATION REVIEWS

24 SEG NEWSLETTER No 53 • APRIL 2003
... from 23
Exploration Reviews (Continued)
EXPLORATION REVIEWS
Limited. Geologix has the option to
acquire a 100% interest in the project
by expending $2 million by the end of
2007. Teck Cominco may re-acquire a
65% interest in the project under certain
conditions. The MaComb property covers
a Cretaceous monzonite stock which
is similar in geological age to the intrusive
rocks at the Pogo deposit, 60 miles
to the north. Previous exploration
returned values of 17.6 gpt gold and
39.2 gpt gold from quartz veins and one
float sample of granitic host rock
(quartz/sericite altered) with quartz
stockwork which assayed 20.5 gpt gold.
These samples were found within a 1.6
× 6 km soil anomaly, and abundant
fresh visible gold could be panned at
some sites. The company is planning to
conduct drilling on the north end of the
soil anomalies and additional surface
prospecting on the property. Welcome
to Alaska, Geologix Exploration!
ALASKA RANGE
Nevada Star Resources announced
results from surface mapping and geophysical
programs over its Dunite Hill
prospect on its MAN project in the central
Alaska Range. The results indicated
a coincidence magnetic and gravity
high zone consisting of a probable
magmatic feeder system on the northwestern
end of the project and tabular
sills extending to the southeast in the
Dunite Hill area. Two survey lines of
magnetotellurics geophysics indicated
the tabular bodies in the Dunite Hill
area are highly conductive, suggesting
the presence of sulfide mineralization
similar to that seen in some surface outcrops
on the project. Additional work is
planned for the project for 2003.
NORTHERN ALASKA
Silverado Mines reported that underground
development work is continuing
at its Nolan Creek placer mine in the
southern Brooks Range. By the end of
January the company had advance
approximately 426 ft upstream and 500
ft downstream along the Nolan Deep
channel. This work and other development
work has resulted in a stockpile of
approximately 7,000 cubic yards of
gold-bearing gravel that will be treated
in the summer of 2003. The company
plans to continue drifting along the
Nolan Deep channel until warmer
spring weather forces seasonal closure
of the underground and conversion of
the operations to mining of stockpiled
gravels. The company expects to mine
about 1,500 ft of channel this winter
season and complete surface drilling on
the property in late spring.
SOUTHEAST
Hecla Mining (29.73%) and Kennecott
Mining (70.27%) announced revised ore
reserves on its Greens Creek mine on
Admiralty Island. The year-end 2002
proven and probable reserves stood at
7,049,944 t grading 0.13 oz Au/t, 14.9
oz Ag/t, 4.2% Pb and 11.4% Zn. This
equates to about 903,000 oz of contained
gold and over 105 Moz of contained
silver. The mine also contains
2,725,637 t of material classified as
“other resources,” grading 0.13 oz Au/t,
17.0 oz Ag/5, 4.9% Pb and 11.3% Zn.
OTHER
The Fraser Institute, one of Canada’s
leading think-tanks, released its
2002–2003 study of mineral potential
and investment attractiveness in 47
jurisdictions around the globe. Unlike
in previous studies, Alaska took a beating
in this year’s results, placing 21 st in
policy potential, 11 th in mineral potential
and 12 th in overall mineral investment
attractiveness. Not surprisingly,
Alaska’s poorest showing was in regulatory
issues, land status uncertainty and
infrastructure to support mineral exploration
and development. While it is
clear that some of Alaska’s perceived
problems do not exist in reality, it is
equally clear that the perception of
those participating in the survey is in
fact reality. Anyone interested in this
report should log onto the Fraser
Institute’s website: .
WESTERN
UNITED STATES
Regional Correspondent: Roger C. Steininger
(SEG 1978)
Consulting Geologist, 3401 San Mateo Ave.
Reno, NV 89509
Tel. +775.323.7775 Fax +775.323.1134
E-mail: audoctor@aol.com
The annual update meeting of the
Ralph J. Roberts Center for Research in
Economic Geology at the Mackay
School of Mines was held in Reno,
Nevada, on February 7. Progress
reports for several graduate research
projects were presented, including studies
at the Tyrone, Goldstrike, True
North, Getchell, and Deep Post mines.
Also available from the Center are several
theses on geological aspects of several
northern Nevada gold mines and
select mines in South America. For more
information contact Tommy Thompson
at Mackay (tommyt@mines.unr.edu).
ARIZONA
Goldcorp has made an investment in
American Bonanza Gold Mining
Corp., sufficient for American Bonanza
to continue the underground development
of the Copperstone deposit (La
Paz County). Copperstone has a geological
resource of 2.0 million tons (Mt)
with an average grade of 0.58 opt Au.
CALIFORNIA
Vista Gold is purchasing the Long
Valley gold deposit in Mono County. A
diligence study of the deposit identified
a geological resource, at a 0.01 opt Au
cut-off, of about 47.5 Mt of oxidized
material with an average grade of 0.18
opt Au, and a sulfide-bearing resource
of 53.5 Mt with an average grade of
about 0.017 opt Au. The deposit is still
open in several directions and additional
exploration opportunities exist
on the property.
IDAHO
New Jersey Mining Company reports
that two recently completed drill holes
at the Silver Strand mine (Shoshone
County) have intersected a zone of
high-grade mineralization that is about
5 ft thick, and contains 0.31 opt Au and
14.75 opt Ag and 0.46 opt Au and 9.22
opt Ag, with associated pyrite, arsenopyrite,
tetrahedrite, and galena. The
Silver Strand mine is along a gold-silver
vein hosted in the Revett Formation.
The new drilling results are sufficiently
encouraging for Silver Standard to initiate
permitting for a seasonal mining
operation. Ore would be hauled to the
New Jersey mill for processing.
Twin Mining Corporation is moving
forward with the evaluation of the
Atlanta Gold project (Boise County).

APRIL 2003 • No 53 SEG NEWSLETTER 25
Metallurgical drilling in the Monarch
and Idaho deposits was completed and
testing is underway to determine the
heap leach characteristics of the
deposits.
MONTANA
Apollo Gold initiated an expansion of
the Montana Tunnels mine in Jefferson
County. A new layback has started that
will allow production to continue for
another four years. Studies are also
underway to determine if yet another
layback is warranted to access deeper
mineralization, or if an underground
development is more economic. As part
of the re-engineering, the new reserve is
about 19 Mt with an average grade of
0.015 opt Au, plus recoverable silver,
zinc, and lead.
Sterling Mining Company of Idaho
(not to be confused with Sterling Mining
Company of Montana, so the press
release states) has leased the JE Silver-
Copper project, about 10 miles southeast
of the Troy deposit and three miles
northwest of the Rock Creek deposit
(Lincoln County). This is a Revett
Formation-type Ag-Cu deposit, similar
to the others in the area. Let’s hope the
environmental situation is better at JE
than the other deposits nearby.
NEVADA
The march of Canadian junior mining
companies into Nevada has resumed. I
was having a meal in one of the
favorite gathering spots for exploration
groups during the last “gold rush” and
it looked like the “good old days.”
Geologists who were discussing plans,
properties, etc., occupied several tables.
Every time an elevated voice said something
about grade, location, or ownership
people at several tables became
silent and heads turned. Also signaling
renewed activity in the Great Basin is
the deluge of—well, at least a few—
properties that are being acquired.
Atna Resources’ announcement of the
Clover prospect acquisition in the
Midas district is an example. Past
drilling at Clover intersected gold-bearing
intervals from a few feet to about 30
ft wide, with grades of several-tenths of
an ounce of gold per ton of rock. We
now have bumper stickers available for
those interested that reads, “Please,
God, let there be one more gold boom,
and this time I will not waste it.” The
price of this item is tied to the price of
gold.
Nevada Pacific announced that
Placer Dome has entered into an
agreement to explore their Battle
Mountain gold project (BMX) in the
Battle Mountains (Lander County). The
property consists of 24 square miles of
mineral rights within a triangle formed
by the Marigold, Surprise, and
Fortitude mines. The claims contain
numerous gold-silver-copper targets.
Placer Dome will pay Nevada Pacific
cash and fund an aggressive exploration
program.
And I quote, “The Pinon project is
located in proximity to the…Round
Mountain Mine.” So declares a recent
news release from Rare Earth Metals
Corp. The Pinon project (Nye County)
contains the Longstreet gold deposit,
which is at least 30 miles east of Round
Mountain. Times must be getting better.
News releases that start relating
how close a prospect is to producing
mines, or on a specific trend, are sure
signs that gold exploration activities are
on an upswing.
Royal Standard Minerals will proceed
with development of a decline for
bulk sampling, and possibly the start of
production, of the Gold Wedge deposit
in the Manhattan mining district, Nye
County. Gold Wedge contains a
resource of slightly more than 1 Mt of
rock that contains about 0.50 opt Au, at
a cut-off of 0.15 opt Au. Gold mineralization
is along the Reliance fault and
ring faults of the Manhattan caldera.
Much of the mineralization is in Lower
Paleozoic sedimentary rocks, in a geological
setting similar to the nearby
deposits mined by Echo Bay, et al.
Vista Gold completed seven reverse
circulation holes totaling 7,020 ft at
Maverick Springs, White Pine County.
These holes outlined additional mineralization
in an area of about 2,200 ×
1,200 ft, and at least 500 ft from the
Maverick Springs gold-silver deposit.
Mineralization in the new zone is
between 300 to 695 ft below the surface,
and varies in thickness from 100 to 375
ft. Grades encountered were in the
range of 0.008 and 0.026 opt Au and
0.52 and 3.85 opt Ag.
Metallic Ventures recently completed
28 reverse circulation drill holes
at the Gemfields property in Esmeralda
County. The program was designed to
“confirm and enhance the understanding”
of the 500,000 oz gold resource.
The two best intervals were 163 ft of
0.163 opt Au and 268 feet of 0.118 opt
Au, starting at about 300 ft down the
hole. The other holes contained significant
intervals of 0.0X opt Au.
Following on this success, they are planning
at least two more drilling programs
in the district. A substantial
drilling program is planned for
McMahon Ridge to follow up on last
year’s drilling, where two of the best
holes contained about 25 ft of 0.958 opt
Au and 13 ft of 0.922 opt Au. Drilling
is also planned in the Tom Keane mine
area, about five miles east of the
Goldfield Main district.
Metallic Ventures also plans to drill
the Converse project (Humboldt
County) during 2003. The deposit contains
an indicated and inferred geological
resource of about 2.7 Moz. The
planned program will focus on infill
drilling in the resource area. An
announcement was also made that
they will continue exploring the
Esmeralda project in the Aurora mining
district (Mineral County).
Underground and surface drilling is
planned along the Prospectus and
Martinez veins.
Mill City International has entered
into an agreement to earn into
Anaconda Gold Corporation’s option
of the Horse Mountain and North Star
gold projects. Horse Mountain is in the
northern part of the Carlin trend, and
North Star is north of the Ken Snyder
mine (both in Elko County). The price
of gold must be getting better; the deals
are becoming more complex again.
Apollo Gold announced the results
of the 2002 exploration program at
Florida Canyon mine, and the nearby
Standard property (both in Humboldt
County). Drilling at Florida Canyon
expanded the reserves by about the
same amount of gold as was produced
in 2002. The new reserve is about 20
Mt with an average grade of 0.017 opt
Au. Additional drilling is planned for
2003, with the intent of further expanding
the reserve base. At the Standard
property 89,000 ft of drilling defined
several gold deposits and developed a
reserve of 17.2 Mt, with an average
grade of 0.017 opt Au. Additional
drilling in 2003 is also planned at
Standard, and subject to permitting, the
first production is anticipated for the
fourth quarter of 2004.
Newmont Mining Corp. had a successful
year in northern Nevada with
the replacement of depleted reserves for
the first time since 1996. Combined
proven and probable
reserves at the end of to page 26 ...
EXPLORATION REVIEWS

26 SEG NEWSLETTER No 53 • APRIL 2003
... from 25
Exploration Reviews (Continued)
EXPLORATION REVIEWS
2002 for the mines in northern Nevada
are 506 Mt with an average grade of
0.061 opt Au.
Queenstake Resources is purchasing
the Jerritt Canyon property from
AngloGold and Meridian Gold.
Proven and probable reserves are estimated
to be about 2.5 Mt with and
average grade of 0.236 opt Au, with an
additional resource of 4.9 Mt with an
average grade of 0.261 opt Au. Of
course, exploration potential abounds.
WASHINGTON
Crown Resources continued to explore
the possibility of developing a gold
reserve that could be mined underground
at the Buckhorn Mountain
property (formerly known as Crown
Jewell). Several drill holes have intersected
grades in excess of 1 opt Au over
several feet, within broader zones of
greater than 0.1 opt Au.
AUSTRALASIA
Regional Correspondent: Neil Phillips
(SEG 1985)
CSIRO, C/- PO Box 3, Central Park, Victoria
Australia 3145
E-mail: neil.phillips@csiro.au
and Kim Ely
CSIRO, C/- PO Box 3, Central Park, Victoria
Australia 3145
With contributions from
T. Baker (SEG 1994 F), Australia
A. Williamson (Department of Mining, Papua
New Guinea), PNG
P. Grieve, New Zealand
AUSTRALIA
Australian mineral exploration expenditure
for 2002 was US$338 million,
remaining at slightly above 17% of the
global total, which itself fell last year.
As absolute exploration expenditure in
Australia has decreased from the peak
in 1997, the commodity focus has
changed very little. Over half the effort
is still directed toward gold, base metals
were subordinate, and coal increased
from a low base. Mineral sands have
been an increasing exploration interest
within the Murray Basin of South
Australia, Victoria, and New South
Wales. By far the greatest overall interest
has been in the Archean Yilgarn
craton (10% of global total). There is
continued interest in some emerging
areas, including the Musgrave province,
for nickel and copper; the Gawler
province, for copper-gold; and the
Tanami province and parts of the
Kimberley areas, for gold.
WESTERN AUSTRALIA
In the Yilgarn craton several gold
explorers have had promising results
from drilling in previously underexplored
areas. Independence Gold’s
Tropicana project, east of Laverton, has
returned significant mineralization from
wide-spaced drilling. Two hits 2 km apart
returned 9 m @ 1.04 g/t and 4 m @ 1.34
g/t. Cullen Resources has announced
results from drilling in the Mt Eureka
greenstone belt, which lies 100 km east
of the gold-rich Yandal belt. Aircore
drilling of the Southern zone prospect
has outlined extensive anomalous gold
(>100 ppb) in weathered bedrock
extending over 1,000 × 400 m with a
northeast trend. First pass RC drilling of
Southern has returned significant results
including 8 m @ 4.28 g/t Au and 38 m
@ 1.08 g/t Au. Eureka Northwest is a
new discovery made by Cullen when
testing a base-of-hardpan gold geochemical
anomaly. Three RC holes were
drilled to follow up previous RAB and
aircore drilling. Hole MERC 55 returned
an intersection of 10 m @ 2.52 g/t Au.
In the Murchison province, Giralia
Resources have announced encouraging
results from drilling at their Snake
Well gold project. Intersections at the
Rabbit Well Calisi prospect of 4 m @
10.6 g/t Au and 49 m @ 0.55 g/t Au
along strike from previous drill intercepts
define supergene and primary
resource potential associated with zones
of quartz veining. Also in the
Murchison province, the Mt Gibson
gold mine, which has been closed since
1999, may be recommissioned by
Oroya Mining, subject to a successful
bankable feasibility study. The mineral
resource at Mt Gibson stands at 0.75
Moz Au, and following a drilling program
designed to convert resources into
reserves, it is predicted that the mine
could be producing again by late 2003.
Following 10 years of legal dispute,
the High Court decided on the tenement
ownership of the unexplored
Bronzewing South lease, on the southern
border of Newmont’s 4-Moz
Bronzewing deposit. AuDAX Resources
has commenced exploration in a JV
agreement with Newmont. Rapid definition
of RC targets is expected to be generated
via an initial RAB/aircore programme
of 600 holes covering a
corridor south of the Bronzewing mine.
Significant results have also been
received by AuDAX from the first RC
drilling program at the nearby Yandal
West prospect, 200 m along strike from
the Dragon deposit.
Pilbara Mines have reported a
resource at the Jaguar base metals
deposit of 1.4 Mt @ 3.7% Cu, 13.2% Zn,
0.9% Pb, 140 g/t Ag and 0.18 g/t Au for
184,000 t of contained zinc, 51,800 t of
copper and 6.3 Moz of silver. With JV
partners Inmet Mining, Pilbara are
undertaking further studies with a view
toward development of the deposit,
located 260 km north of Kalgoorlie.
Junior nickel sulfide producer,
Mincor Resources, has had recent
exploration success in the Kambalda
district, including an intersection of 2.5
m @ 6.70% Ni from 422.23 m in massive
and matrix style sulfide mineralization.
In the southwest Yilgarn at
Western Areas’ Forrestonia project,
diamond drilling is in progress at the
Daybreak prospect, testing for possible
extensions to the deposit below a horizontal
fault at 400 m depth. Recently
announced results include 9.3 m @
3.5% Ni and 8.8 m @ 2.2% Ni. LionOre
received board approval to develop the
Maggie Hays nickel deposit, which will
be integrated with the nearby Emily
Ann operation, resulting in a combined
production of 10,000 to 12,000 tonnes
(t) of payable nickel per annum. Total
Indicated Resource at Maggie Hays is
10.8 Mt at 1.5% Ni. Following the
increase of LionOre’s interest in the surrounding
Lake Johnson area tenements
to 100%, the exploration program for
further nickel sulfide deposits will be
expanded. LionOre shared more success
when Dr. Mark Bennet was recently
named Prospector of the Year for his
role in the discovery of Emily Ann and
the Thunderbox gold deposit.
BHP Billiton is expanding its iron
ore mining operations near Newman in
the Pilbara region, with construction
work continuing on plant and railway
infrastructure for the Mining Area C
project, scheduled to commission in late
2003. The deposit has an estimated
resource of 890 Mt, with reserves currently
standing at 189 Mt.

APRIL 2003 • No 53 SEG NEWSLETTER 27
A prefeasibility study of Gunson
Resources’ Coburn mineral sand project
has concluded that the Amy zone
deposit, with a resource of 516 Mt averaging
1.4% heavy minerals, will support
a profitable, long-term mining
operation. Gunson Resources is also
actively exploring in the Musgrave
Ranges, reporting the intersection of a
kimberlitic pipe in the first hole drilled
at the Shell Lakes nickel/diamonds project
in a program supported by De
Beers Australia Exploration.
Rio Tinto is commencing a feasibility
study on its Argyle diamond mine to
determine the potential of the mine’s
future as an underground operation.
Current mining operations are planned
to finish in 2007, but underground
development could extend the mine’s
life as far as 2020.
AKD Limited reported the recovery
of diamond indicator minerals from a
sampling program at the northern
Kimberley region King George project
and will be carrying out follow-up sampling.
Other diamond exploration
activities are occurring in the Seppelt
Range, and the South West Diamond JV
in the southern Yilgarn region.
Pending the outcome of a feasibility
study, Platinum Australia is set to
open Australia’s first platinum-palladium
mine. The Panton Sill deposit in
the Kimberley region includes resources
of 10.6 Mt @ 5.8 g/t PGE + Au in the
Top Reef, and an additional 5.7 Mt @
3.4 g/t PGE + Au in the Middle Reef system.
Commencement of construction
later this year could see first production
from the new mine in early 2004. The
first reconnaissance RC drilling program
completed by West Musgrave
Mining at its Cavenagh Range project
has confirmed the presence of broad
zones of copper/PGE mineralization at
several prospects.
SOUTH AUSTRALIA
In the Gawler craton, the latest round of
grade control drilling at Dominion
Mining’s new Challenger gold mine
has confirmed the high-grade nature of
the M1 shoot, with results including 5
m @ 224 g/t Au and 8 m @ 20.3 g/t Au.
Deeper drilling for the Challenger
Underground feasibility study commenced
during the quarter, with results
from the M1 shoot indicating its continuity
at depth. Intersections include 9
m @ 18.85 g/t Au and 5 m @ 27.1 g/t
Au. Encouraging results have also been
reported from regional RAB drilling in
the Challenger corridor.
Adelaide Resources are following up
on promising diamond drilling results
at their Barns gold project with drilling
of the untested northern sector of the
calcrete geochemical anomaly. Further
diamond results from Barns include
intersections of 24 m @ 2.19 g/t Au and
11m @ 2.84 g/t Au.
Minotaur have continued drilling at
the Prominent Hill copper-gold
prospect, testing for extensions of
known mineralization. Mineralized
intervals were intersected in 5 of 7
holes, drilled up to a kilometer from
existing mineralization, including 16 m
@ 1.39% Cu, 0.10g/t Au and 6 g/t Ag
from 321 m.
VICTORIA
AGD Mining’s recent results at the
Augusta gold-antimony deposit at
Costerfield support plans for an open
cut mine with a 75,000-tonne annual
production. Results include 0.15 m @
86.8 g/t Au and 1.3% Sb from 13.65 m
and 0.42 m @ 31.2 g/t Au and 19.9%
Sb. The total resource estimate for the
project stands at 290,000 t grading 12
g/t Au and 6.2% Sb. A regional aircore
drilling program in the Costerfield corridor
has produced four additional exploration
targets.
Ballarat Goldfields has undergone
restructure and refinancing, and
intends to focus on its objective of establishing
a mining operation on its
Ballarat tenements, where an inferred
resource of around 1 million ounces has
been previously calculated. Alliance
Energy is set to revive the Maldon gold
field (2 Moz historic production) after
securing the investment support of
Abbotsleigh. Alliance is focussing on
several deposits within trucking distance
of Roxbury Mining Contractor’s
Porcupine Flat treatment plant.
Bendigo Mining is undertaking
exploration development and bulk
sampling work toward development of
the New Bendigo gold mine. Recent
bulk sampling results returning 3 to 22
g/t have met or exceeded the company’s
expectations, and a decision to
mine the 700,000 oz resource is scheduled
to be made in late 2003.
The historic Ararat gold field in western
Victoria was a significant source of
alluvial gold; however, major primary
deposits have never been discovered in
the district. Range River Gold has been
drilling structural targets within its
Ararat project, from which 600,000 oz
was recovered from alluvial deposits
across the tenement area. Results from
the RAB drilling program indicated
widespread gold mineralization within
volcanogenic and schist rock types considered
equivalent to the host rocks at
the nearby Stawell gold mine.
NEW SOUTH WALES
Newcrest is continuing to receive
encouraging intersections from near its
new Ridgeway copper-gold mine,
including 72 m @ 1.78 g/t Au and
0.87% Cu. Drilling at the advanced
Cadia East/Cadia Far East project has
returned results including 408 m @
0.70g/t Au and 0.29%Cu.
Consolidated Broken Hill drilling
results from the Western Mineralisation
zone of the Rasp mine silver-lead-zinc
project confirm significant high-grade
zones and enhance the economic potential
of the project. Intersections include
5.3 m @ 18.5% Zn, 13.6% Pb and 60 g/t
Ag from 312.4 m and 13.7 m @ 11.7%
Zn, 6.6% Pb and 35 g/t Ag from 304 m.
QUEENSLAND
Buka Minerals has reported encouraging
copper grades from the Lady Annie
project near the Lady Loretta lead-zinc
deposit, Mount Isa inlier. Twenty-nine
holes were drilled and results included
35 m @ 3.3% Cu and 19 m @ 5.5% Cu.
Elsewhere in the Mount Isa district,
Universal Resources announced significant
copper-gold intersections at the
Lady Clayre prospect, including 40 m @
1.13% Cu and 0.32 g/t Au, and 12 m @
6.13% Cu and 4.47 g/t Au.
Further drilling by Strategic
Minerals at their Woolgar epithermal
gold project, in north Queensland has
confirmed a 300-m strike length of the
Explorer Main Vein structure, still open
to the southeast. Recent drilling results
include 2 m @ 52.2 g/t Au and 12m @ 8
g/t Au. Further high-grade intersections
have also been reported at Newcrest’s
Cracow gold project, including 12.15 m
@ 13 g/t Au from 561m.
MIM Holdings has announced substantial
increases to their resources,
which is expected to have considerable
impact on expansion and mine life of
the Mt Isa copper and lead-zinc-silver
and Ernest Henry copper-gold operations.
The resources include a new 290
Mt open pit resource at Mt Isa, and an
underground resource at Ernest Henry
of 5 Mt.
NORTHERN TERRITORY
Elkedra Diamonds has recovered 48
chromite diamond
indicators and to page 28 ...
EXPLORATION REVIEWS

28 SEG NEWSLETTER No 53 • APRIL 2003
... from 27
Exploration Reviews (Continued)
EXPLORATION REVIEWS
another microdiamond from its Wanda
prospect, 300 km northeast of Alice
Springs. Many of the indicators and
microdiamonds were found near the
headwaters of river and stream
drainages suggesting a proximal
source. Rio Tinto has announced its
intention to close the Merlin diamond
mine, after failing to find a buyer for
the small scale operation. Decommissioning
and rehabilitation are scheduled
to be completed during 2003.
In the Tennant Creek gold field,
Giants Reef Mining has begun mining
the open pit at its Chariot project and
expects to pour the first gold by July. The
development comprises a small open cut
and underground mine, processing a
total of 434,000 tonnes grading 14.5 g/t
for a contained 203,000 oz of gold.
NEW ZEALAND
Heritage Gold plans to drill at Waihi
North and Karangahake, near
Newmont’s Martha mine within the
Waihi gold mining district (historic production
of 9 Moz of gold and 47 Moz of
silver). Newmont completed 30,000 m
of core drilling on the high-grade
Favona deposit at Waihi and plans an
exploration drive. GRD Macraes continues
drilling on the Sams Creek
intrusion-related gold prospect.
PNG
Exploration and mining received a
boost following the adoption of new
incentives. Below is a summary of fiscal
terms for mining.
Income Tax 30%
Dividend
withholding tax 10%
Depreciation
Royalty 2%
Exploration
expenditure
deductions 200%
25% declining
balance pool
Additional profits tax
Ring fencing
Mining levy
Capital gains tax
State equity
Fiscal stability
abolished
relaxed
none
none
under review
optional
Highlands Pacific is gathering technical
information aiming for a 2004
start-up of the 1 Moz Kainantu Au
deposit. At Frieda there is diamond
drilling of Cu-Au porphyry targets. Field
work is planned to re-commence soon
at Wafi Cu-Au, testing for extensions to
the existing resource, of 100 Mt at 1.3%
Cu and 0.6 g/t Au for a contained 1.3
Mt of copper metal and 1.9 m oz of
gold. At Hidden Valley Au there is
assessment of components of the latest
feasibility study. 1
SEG-Sponsored Symposium
GEOPHYSICAL SERVICES
“ANDEAN METALLOGENESIS:
NEW CONCEPTS, DISCOVERIES
and UPDATES”
October 6 - 10, 2003 - Concepción, Chile
The symposium will focus on the geology and case histories of the principal
new base and precious metal discoveries in the Central and Southern Andes.
It will also include updates on the geology of many other deposits as well as
regional review contributions by keynote speakers. The conference is a
must-attend event for all geoscientists engaged in exploration and ore
research in the Andes.
The Technical Program will include presentations covering deposits in
Chile, Peru and Ecuador. Comparative metallogenic studies and future
exploration trends will also be covered.
The symposium will be held in conjunction with the 10th Chilean Geological
Congress.
-10th Chilean Geological Congress:
PAID ADVERTISEMENT
Contacts:
-Symposium on Andean Metallogenesis: JOSE PERELLO
jperello@aminerals.cl
COMITE ORGANIZADOR
DEPARTAMENTO CIENCIAS DE LA TIERRA
UNIVERSIDAD DE CONCEPCIO N
CASILLA 160-C, CONCEPCION, CHILE
Tel/Fax : (56) (41) 246075
E-mail : cgeologico@udec.cl
web page : www.udec.cl/cgeologico
• Geophysical Consulting, Survey Design,
Data Interpretation
• Subsurface Structural Mapping
• Ground Water Delineation
• Minerals Exploration
• Rentals
• Equipment Sales
• Physical Properties Lab
Electromagnetic
(EM) Techniques,
Induced Polarization
(IP) Techniques, Gravity,
Magnetics, Shallow Seismic,
& Downhole Techniques
ZONGE
ENGINEERING & RESEARCH ORGANIZATION
1-800-523-9913 or 520-327-5501
Fax 520-325-1588, seg@zonge.com, www.zonge.com
Offices World Wide
USA: -Tucson, Arizona -Sparks, Nevada -Anchorage & Fairbanks, Alaska
PAID ADVERTISEMENT

APRIL 2003 • No 53 SEG NEWSLETTER 29
SEG MEMBERSHIP NEWS
CANDIDATES FOR 1 FELLOWSHIP
To All SEG Fellows:
Pursuant to the Society’s Bylaws, names of the following candidates, who have been recommended for Fellowship by the
Admissions Committee, are submitted for your consideration. Each applicant’s name and current position are followed by the
names of their SEG sponsors. If you have any comments, favorable or unfavorable, on any candidate, you should send them,
in writing before May 31, 2003. If no objections are received by that date, these candidates will be presented to Council for
approval.
Address Comments To:
Chair, SEG Admissions Committee
SOCIETY OF ECONOMIC GEOLOGISTS • 7811 Shaffer Parkway • Littleton, CO 80127 • USA
Bell, Peter D., Newmont Mining Corporation, Denver, CO: Dale
R. Finn, E. Kennth Paul, Jr.;
Benn, Keith B., University of Ottawa, Ottawa, ON, Canada:
Keiko H. Hattori, C. Michael Lesher;
Hart, Craig J. R., Yukon Geology Program, Whitehorse, YT,
Canada: Richard J. Goldfarb, David I. Groves;
Li, Chusi, Indiana University, Bloomington, IN: Edward M.
Ripley, C. Michael Lesher;
Moody, Timothy C., Rio Tinto Mining and Exploration, Lima,
Perú: Richard H. Sillitoe, César E. Vidal;
Moscosa, Martin, Minera Peñoles de Perú S. A., Arequipa, Perú:
William T. Parry, Erich U. Petersen;
Rowins, Stephen M., University of British Columbia, Vancouver,
BC, Canada: Alastair J. Sinclair, Ronald M. Britten;
Wormald, Peter J., Geologic Consultant, Salta, Argentina:
Francisco I. de Azevedo, Jr., Jeffrey W. Hedenquist.
THE SOCIETY ALSO WELCOMES THE ABOVE CANDIDATES AS NEW MEMBERS
The Society Welcomes
The Following
NEW1FELLOWS:
Fernando J. A. S. Barriga, University of
Lisbon, Lisbon, Portugal; Richard L.
Bedell, Jr., GeoCorp, Reno, NV; David R.
Burrows, Inco Technical Services Ltd.,
Mississauga, ON, Canada; Alberto
Caballero, Minera Anaconda Perú S. A.,
Lima, Perú; Miguel Cardozo, Consulting
Geologist, Lima, Perú; Victor S. Carlotto,
Consulting Geologist, Cusco, Perú; Raul R.
Fernandez, Instituto de Recursos
Minerales, La Plata, Argentina; Tomas M.
Guerrero, B. O. Consulting, Lima, Perú;
Dieter A. Krewedl, Coeur d’Alene Mines
Corporation, Coeur d’Alene, ID; Jose E.
Machare, Minera Barrick S. A., Lima,
Perú; Peter J. MacLean, Consulting
Geologist, Durango, Mexico; K. Brock
Riedell, BHP Billiton World Exploration,
Vancouver, BC, Canada.
The Society Welcomes
The Following
NEW1MEMBERS:
Akio Abe, S. C. M. Atacama Kozan, Tierra
Amarilla, Chile; Neil D. Adshead, Placer
Dome, Inc., Vancouver, BC, Canada;
Frederik P. Badenhorst, Anglo Gold,
Karibib, Namibia; Mark J. Balog,
Comaplex Minerals Corporation, Calgary,
AB, Canada; David M. Barbour, Altius
Resources, Inc., Portugal Cove, NF,
Canada; Graham C. Begg, WMC
Resources Ltd., Coolbinia, WA, Australia;
John A. Bradford, Aurora Platinum
Corporation, Vancouver, BC, Canada;
Roland W. Butler, Altius Minerals, St.
John’s, NF, Canada; Nicholas J. Callan,
Geological Consultant, Santiago, Chile;
Cesar Casquet, Universidad Complutense,
Madrid, Spain; Michael P. Dempsey,
Encana Oil and Gas, Golden, CO; Jean-
Philippe Desrochers, Compania Minera
Quebrada Blanca, Iquique, Chile;
Kieran Downes, Kieran Downes and
Associates Ltd., Nanaimo, BC, Canada;
Michel Dubois, Universite Paul Sabatier,
Toulouse, France; Robert A. Duncan,
Expatriate Resources Ltd., Vancouver, BC,
Canada; David S. Dunn, Consulting
Geologist, Gibsons, BC, Canada; David L.
Eddy, Bureau of Land Management,
Phoenix, AZ; Matthew C. Farmer,
Tiberon Minerals, Chiang Mai, Thailand;
Robert J. Fleck, U. S. Geological Survey,
Menlo Park, CA; George Gorzynski,
Geological Consultant, North Vancouver,
BC, Canada; Garret W. Graaskamp,
American Ground Water Trust, Concord,
NH; Herwart Helmstaedt, Queen’s
University, Kingston, ON, Canada; Steven
R. Hunns, University of Tubingen,
Reutlingen, Germany; Gawen R. T.
Jenkin, The University of Leicester,
Leicester, Great Britain; Felix Kaminsky,
KM Diamond Exploration Ltd., West
Vancouver, BC, Canada; Niilo K.
Karkkainen, Geological Survey of
Finland, Espoo, Finland; Edward M.
Lyons, Geological Consultant, Victoria,
BC, Canada; Boyd E. MacKean,
Geological Consultant, Denman Island,
BC, Canada; Paul R. Mattinen,
Geological Consultant, Reno, NV; Paul J.
McGuigan, Cambria Geological Ltd.,
Vancouver, BC, Canada; Henry M.
Meixner, Geological Consultant,
Vancouver, BC, Canada; John C.
Menzies, CMI Capital Limited,
Vancouver, BC, Canada; Vladislav E.
Minaev, The Academy of Sciences,
Institute of Geology, Dushanbe,
Tajikistan; Sisir K. Mondal, Jadavpur
University, Calcutta, India; Jonathan
Naden, British Geological Survey,
Keyworth, Great Britain; Henry E.
Newgebauer, Jalna Resources, Vancouver,
BC, Canada; Stawomir Oszczepalski,
Polish Geological Institute, Warsaw,
Poland; Craig A. Parry, Rio Tinto Mining
and Exploration, Antofagasta, Chile;
William S. Peters, Southern Geoscience
Consultants, Ardross, WA, Australia;
Nigel D. Phillips, Kennecott Exploration,
Oro Valley, AZ; Nevan T. Pillay,
Anglovaal Zambia Ltd., Kitwe, Zambia;
Terence M. Porter, Porter Geoconsultancy
Pty. Ltd., Linden Park, S. A., Australia;
David T. Rohrs, Unocal Corporation,
Santa Rosa, CA; Herbert Roesener, Anglo
Gold, Karibib, Namibia; Kiko R. Sanchez
B., Cia. Minera Oro Candente, Lima, Perú;
Fenton Scott, Markland Resources,
Toronto, ON, Canada; Michael P.
Sheehan, Ivanhoe Mines, Arvada, CO;
Arthur E. Smith, Jr., Houston, TX; Roric
G. Smith, Anglogold Australia, Marmion,
WA, Australia; W. Roger Smith, Midland,
TX; Dirk J. Tempelman-Kluit,
Vancouver, BC,
to page
Canada; Kazuyasu
30 ...

30 SEG NEWSLETTER No 53 • APRIL 2003
... from 29
Candidates for SEG Fellowship (Continued)
Tsuda, Mitsubishi Materials Natural
Resources, Tokyo, Japan; Frank W. van
der Stijl, Anglo American Int., Gaddede,
Sweden; Peter J. Vanstone, Tantalum
Mining Corporation of Canada Limited,
Lac du Bonnet, MB, Canada; Mary-
Carmen Vera, Wemindji Exploration,
Inc., Wemindji, James Bay, QC, Canada;
Vaughan Williams, Aurum Exploration
Ltd., Navan, County Meath, Ireland; Peng
Zhang, WMC Xinjiang Mineral Industry
Service Company Ltd., Kunming, Yunnan,
China; Mark R. Zwaschka, JBR
Environmental Consultants, Spearfish, SD.
The Society Welcomes
The Following
STUDENT1MEMBERS:
Robert D. Aird, Imperial College, London,
Great Britain; Murray M. Allan,
University of Leeds, Leeds, Great Britain;
Jason D. Babcock, The University of Utah,
Salt Lake City, UT; Darcy E. L. Baker, The
University of Newcastle, Newcastle, NSW,
Australia; Robert C. Baylis, Imperial
College, London, Great Britain; Jeffrey D.
Boyce, The University of British Columbia,
Vancouver, BC, Canada; Deborah L.
Bryan, The University of Arizona, Tucson,
AZ; Neil R. Burns, Queen’s University,
Kingston, ON, Canada; Murtala I.
Chindo, Imperial College, London, Great
Britain; Carmen Conde, Instituto
Geologico y Minero de Espana,
Salamanca, Spain; Benjamin M.
Costanza, Salem State College,
Marblehead, MA; Jose J. Diaz,
Northeastern Illinois University, Hickory
Hills, IL; Carina J. Fearnley, Imperial
College, London, Great Britain; Simon
Gagne, Dalhousie University, Halifax, NS,
Canada; Neven A. Georgiev, Sofia
University St. Kliment Ohridski, Sofia,
Bulgaria; Mark K. Goldie, Queen’s
University, Kingston, ON, Canada;
Tafadzwa E. S. Gomwe, Université du
Québec à Chicoutimi, Chicoutimi, QC,
Canada; Jesse C. Grady, University of
Nevada-Las Vegas, Las Vegas, NV;
Melissa J. Gregory, Monash University,
Melbourne, VIC, Australia; Paul
Grevenitz, University of Wollongong, East
Corrimal, NSW, Australia; M. D. R.
Hassan, The University of Texas at
Austin, Austin, TX; John G. Hinchey,
Carleton University, Ottawa, ON, Canada;
Alana M. Hinchey, Carleton University,
Ottawa, ON, Canada; Alex James,
Imperial College, London, Great Britain;
Ajit Kumar, Queen’s University, Kingston,
ON, Canada; Anna V. Lazarova, Sofia
University St. Kliment Ohridski, Sofia,
Bulgaria; Nathalie S. Lefebvre, The
University of British Columbia,
Vancouver, BC, Canada; Graham D.
Lindsay, Imperial College, London, Great
Britain; Petrus Llyambo, Imperial
College, London, Great Britain; Catherine
P. May, Imperial College, London, Great
Britain; Jessica M. McPherson, University
of Manitoba, Matlock, MB, Canada;
Krista L. Monsen, Miami University,
Liberty, IN; Alison S. Mote, The University
of Texas at Austin, Austin, TX; Samuel A.
Ndur, New Mexico Institute of Mining
and Technology, Socorro, NM; Paulines
C. Nwokolo, University of Nigeria,
Nsukka, Enugu, Nigeria; Howard J.
Ormonroyd, Imperial College, London,
Great Britain; Carlos J. Paulino Rosa,
University of Tasmania, Hobart, TAS,
Australia; Luis A. Rivera, University of
Texas, Austin, TX; Tyler W. Ruks,
Laurentian University, Sudbury, ON,
Canada; Jamil A. Sader, The University of
Texas at Dallas, Dallas, TX; Alessandro
Sandrin, Luleå University of Technology,
Luleå, Sweden; Yvette S. Shiu,
Northeastern Illinois University, Chicago,
IL; Annette M. Smith, Illinois State
University, Normal, IL; Xie-Yan Song, The
University of Hong Kong, Hong Kong; E.
John Stanner, Imperial College, London,
Great Britain; William J. A. Stavast, The
University of Arizona, Tucson, AZ; Fiona
J. Stevens, University of The
Witwatersrand, Johannesburg, South
Africa; Barry Stoffell, Imperial College,
London, Great Britain; Sabina Strmic,
University of Zagreb, Zagreb, Croatia;
Xiwen Sun, The University of Utah, Salt
Lake City, UT; Catherine Thiuierge, Ecole
Polytechnique de Montreal, Longueuil,
QC, Canada; Richard H. Tomlinson,
Imperial College, London, Great Britain;
Jessica Trofimovs, Monash University,
Melbourne, VIC, Australia; Johann
Tuduri, Universite d’Orleans, Orleans,
France; Raymond N. Umeh, Imperial
College, London, Great Britain; Simon E.
Van Der Wielen, The University of
Western Australia, Highbury, WA,
Australia; Yan Wang, The University of
Hong Kong, Hong Kong; Zachary J.
Wenz, University of Alaska Fairbanks,
Fairbanks, AK; Kenneth Williamson,
INRS-ETE, Quebec, QC, Canada; James C.
Withall, Imperial College, London, Great
Britain; Guangping Xu, Massachusetts
Institute of Technology, Cambridge, MA;
Rui Zhang, Queen’s University, Kingston,
ON, Canada; Kuidong Zhao, Nanjing
University, Nanjing, Jiangsu Province,
China.1
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APRIL 2003 • No 53 SEG NEWSLETTER 31
SEG-GAC-MAC Joint Spring Meeting 2003
Vancouver, British Columbia, May 25–28, 2003
SEG Program Chair: Steve Rowins (SEG 1998 M), E-mail: srowins@eos.ubc.ca
“Vancouver 2003 – On the Edge: Earth Science at North America’s Western Margin”
The Society of Economic Geologists (SEG), the Geological Association of Canada (GAC) and the Mineralogical Association of
Canada (MAC) invite you to live On the Edge for a few days this spring in Vancouver, British Columbia. The technical program
will cover all major aspects of the earth sciences and emphasize the construction and evolution of the North American
Cordillera and its geological resources. Six Symposia (SYMP) and 26 Special Sessions (SS) are planned, with many of the sessions
of direct interest to the exploration and mining communities. Nine General Sessions (GS), 11 field trips, two Workshops (WS),
and six Short Courses (SC), will round out the program. The parts of the technical program of special interest to SEG members
are described below. Full details of the conference are available on the Vancouver 2003 website (www.vancouver2003.com). I
look forward to seeing you all in Vancouver!
SYMP2.
SUSTAINABLE DEVELOPMENT IN
THE MINERAL RESOURCES SECTOR:
AN OXYMORON OR GOLDEN
OPPORTUNITY?
Jeremy Richards
(Jeremy.Richards@UAlberta.CA)
Sustainability is the buzzword of the
nascent millennium, but has widely different
meanings depending on the perspective
of the user. The apparent
incompatibility of this term with mining
is resolved when defined within the
context of the Brundtland Report, which
allows the needs of the present generation
to be met (sustained) but not at the
expense of future generations. The challenge,
therefore, is to design and implement
resource development strategies
that impact minimally or positively on
affected environments and communities,
both in the short and long terms.
This symposium will highlight examples
of sound development practice,
examine cases of past bad practice and
its consequences, and explore new
approaches and concepts that can help
shape future development strategies.
PLEASE NOTE:
SYMPOSIA AND SPECIAL SESSIONS
SYMP3.
METALS IN THE ENVIRONMENT
John Jambor (jLjambor@aol.com)
SS4.
ENVIRONMENTAL STUDIES
OF MINE WASTES
Leslie Smith (Lsmith@eos.ubc.ca)
SS6.
WEST COAST OFFSHORE OIL
AND GAS DEVELOPMENT:
ISSUES, PERSPECTIVES AND
RESPONSIBILITIES
Christopher Barnes
(cbarnes@uvic.ca) and Michael J.
Whiticar (whiticar@uvic.ca)
SS7.
BEAUFORT-MACKENZIE REGION:
NIGER OF THE NORTH? UNLOCK-
ING THE RESOURCE POTENTIAL
OF THE NORTHERN EDGE OF THE
CANADIAN CORDILLERA
Larry S. Lane (Llane@nrcan.gc.ca)
and Dennis H. Johnston
(Dennis.Johnston@devoncanada.com)
The joint luncheon between the SEG and the
Geological Association of Canada’s Mineral Deposits
Division (GAC-MDD)
is on
Wednesday, May 28, 2003.
The cost is $45CDN.
Further details on the conference website.
Joint SEG Council –
Foundation Strategic
Planning Meeting
on Saturday, May 24th.
SS8.
REACTIVATION TECTONICS IN
THE CORDILLERAN FOOTHILLS:
GLIMPSES OF THE PAST,
$IGNIFICANCE FOR THE FUTURE
Larry S. Lane (Llane@nrcan.gc.ca)
and Glen S. Stockmal
(gstockma@nrcan.gc.ca)
SS9.
MASSIVE SULPHIDES ON THE EDGE:
THE FORMATION OF VMS AND
SEDEX DEPOSITS WITHIN EVOLV-
ING CONTINENTAL MARGINS
Steve Piercey (spiercey@nickel.
laurentian.ca) and Jim Mortensen
(jmortensen@eos.ubc.ca)
Continental margin arc, back-arc, and
rift geodynamic environments host
some of the world’s largest volcanogenic
massive sulphide (VMS) and
sedimentary exhalative (SEDEX) Zn-Pb-
Cu deposits (e.g., Brunswick #12, Neves
Corvo). The session is aimed at addressing
recent ideas regarding the setting
and origin of base-metal deposits within
evolving continental margin settings.
The session is open to all aspects of continent-margin
massive sulphide
deposits, including, but not necessarily
limited to: regional tectonics and structural
controls on deposit localization;
petrology of associated
volcanic,
32 to page ...

32 SEG NEWSLETTER No 53 • APRIL 2003
... from 31
SEG-GAC-MAC Joint Spring Meeting 2003 (Continued)
ANNOUNCEMENTS
plutonic rocks and sedimentary rocks;
new deposit and camp descriptions;
regional semi-conformable to depositscale
hydrothermal alteration; metal
and fluid source tracing; timing of massive
sulphide events; and models for ore
deposition and genesis. Attendees interested
in this session also will be
attracted to field trips A1 and A2.
SS10.
TECTONIC CONTROLS ON PALEO-
PROTEROZOIC MINERALIZATION
Chris Beaumont-Smith
(cbeaumont@gov.mb.ca),
Alan Bailes (abailes@gov.mb.ca) and
Alan Galley (agalley@NRCan.gc.ca)
The Paleoproterozoic is one of the most
prolific periods of early Earth history for
production of base metal and gold mineralization.
This session will present
studies by researchers and explorationists
on the setting and control of deposits
formed during this important period
including lode gold, volcanogenic massive
Cu-Zn-Au sulphide, Olympic Damtype
Cu-Au mineralization, and cratonmargin
nickel and PGE mineralization.
All aspects of these deposits will be considered
including mine-scale studies,
research into geological controls of
mineralization in individual mining
areas, and studies emphasizing regionalscale
tectonic-metallogenic controls.
Attendees interested in this session also
will be attracted to short course SC2 and
field trips A1, A2, B1, and B2.
SS11.
GEM MATERIALS AND
MINERALOGY
Lee A. Groat (lgroat@eos.ubc.ca)
SS12.
APPLICATIONS OF GEOPHYSICAL
INVERSION FOR MINERAL
EXPLORATION: CURRENT STATUS
AND VISION FOR THE FUTURE
Douglas Oldenburg
(doldenburg@eos.ubc.ca) and
John McGaughey (johnm@
mirageoscience.com)
The last decade has seen large-scale
advances in our ability to generate 3D
physical property images of the Earth
by inverting data from different geophysical
surveys. With advanced visualization
tools, these inversions allow new
understanding about the geology at
both regional and deposit scales. Today,
geophysical inversions are carried out
routinely by many companies and the
inversions have been effective in finding
mineral deposits and in reducing exploration
costs. This session focuses on case
histories that illuminate the impact that
inversions have had on mineral exploration
programs and also present a
vision for future capabilities. Attendees
interested in this session also will be
attracted to the SEG workshop (WS1)
Understanding Geophysical Inversions for
Mineral Exploration.
SS13.
CANADIAN DIAMOND DEPOSITS:
HISTORY AND TECHNIQUES
OF THEIR DISCOVERY –
A TRIBUTE TO HUGO DUMMETT
Felix Kaminsky
(felixvkaminsky@cs.com)
and Donald K. Mustard
(amustard@attcanada.net)
The past decade has seen Canada move
into the select ranks of diamond producing
nations. This session consists of
contributions on all aspects of diamond
exploration especially the research techniques
employed in their discovery. The
session is focused on the Canadian diamond
scene, but contributions on diamond
deposits from other geographical
regions are considered. The session is a
tribute to the late SEG president Hugo
Dummett, a pioneer in diamond exploration
and mine development in Canada.
Attendees interested in this session also
will be attracted to the SEG workshop
(WS1) Understanding Geophysical
Inversions for Mineral Exploration.
SS14.
NEW PERSPECTIVES ON THE
EVOLUTION OF THE PLATINUM
GROUP ELEMENTS IN MAGMAS
AND ORE DEPOSITS
James Scoates (jscoates@eos.ubc.ca)
and David Peck
(dpeck@angloamerican.ca)
This special session brings together specialists
in the mineralogy and geochemistry
of platinum group elements (PGE)
and geologists who study the field and
structural aspects of PGE mineralization
to address advances in our understanding
of PGE evolution in magmas and
ore deposits. Some of the areas of
progress in recent years include:
increasingly sensitive analytical techniques
for PGE, the recognition of
dynamic processes as important for PGE
mineralization, and the development of
sophisticated physical and chemical
models for PGE variations in basaltic to
komatiitic magmas. Contributions
related to these and other aspects of
magmatic PGE evolution and mineralization
are considered. Attendees interested
in this session also will be
attracted to short course SC2 and field
trip B2.
SS15.
ORE-FORMING PROCESSES IN THE
PORPHYRY COPPER (GOLD) AND
EPITHERMAL GOLD ENVIRONMENTS:
WHAT DO WE REALLY KNOW?
Stephen Rowins (srowins@eos.ubc.ca)
and Anthony Williams-Jones
(willyj@eps.mcgill.ca)
It has become increasingly apparent
that both high- and low-sulphidation
epithermal gold deposits are, in many
cases, genetically related to large porphyry
copper-gold systems. These
genetic linkages, however, are incompletely
understood - a point underscored
by the recent flood of analytical, experimental,
theoretical, and field studies
which call into question many of the
assumptions commonly held regarding
ore-forming processes in the porphyryepithermal
environment. This special
session highlights analytical, theoretical,
experimental and field investigations
of the mobility, transport, deposition,
and source of metals in the
porphyry-epithermal environment.
Attendees interested in this session also
will be attracted to short courses SC1
and SC2 and field trips A2 and B1.
SS16.
CUTTING EDGE EXPLORATION
TECHNIQUES FOR CONCEALED
ORE DEPOSITS
Ron Britten
(rbritten@firstpointminerals.com)
and Dick Tosdal (rtosdal@eos.ubc.ca)
The discovery of new mineral deposits is
becoming more challenging as near
surface deposits are depleted. This
session highlights exploration techniques
that encompass various disciplines
including geology, geochemistry,
geophysics, and computer-aided visualization,
which aid in the search for

APRIL 2003 • No 53 SEG NEWSLETTER 33
concealed deposits at all stages of
exploration from the grassroots to the
established mining camp environment.
Techniques that integrate various disciplines
in a fashion that permits easy
use in exploration are of particular
interest. A discussion of the practical
application of the method, case histories
and where applicable, costs
involved, is included. Attendees interested
in this session also will be
attracted to the SEG workshop (WK1)
Understanding Geophysical Inversions for
Mineral Exploration, short course SC2,
and field trip A2.
SS20.
THE APPLICATION OF FLUID
AND MELT INCLUSIONS TO
UNDERSTANDING
GEOLOGICAL PROCESSES
Iain Samson (ims@uwindsor.ca) and
Alan J. Anderson (aanderso@stfx.ca)
SS21.
NEW ANALYTICAL DEVELOPMENTS
IN ISOTOPE GEOCHEMISTRY
Dominique Weis (dweis@eos.ubc.ca)
and James Mortensen
(jmortensen@eos.ubc.ca)
This session will focus on papers and
discussions of recent advances in isotopic
ratio analyses by multi-collector
inductively coupled plasma mass spectrometry
(MC-ICP-MS) and high precision
thermo-ionization mass spectrometry
(TIMS). Applications cover the field
of earth sciences, oceanography, environmental
studies and geobiology.
Topics that can be addressed (but are
not limited to) include: new or
improved methods of isotopic analysis
using multicollector ICP-MS, (negative
ion) TIMS; comparative studies of isotopic
analysis and critical evaluations
of MC-ICP-MS techniques; and spatial
resolution (laser ablation) and stepwise
release techniques in geochronology.
SS23.
PALEOZOIC EVOLUTION AND
METALLOGENY OF PERICRATONIC
TERRANES AT THE ANCIENT
PACIFIC MARGIN OF
NORTH AMERICA
JoAnne Nelson
(joanne.nelson@gems1.gov.bc.ca),
Maurice Colpron
(maurice.colpron@gov.yk.ca)
and Bob Thompson
(bthompson@NRCan.gc.ca)
GENERAL SESSIONS
Although there are a large number of
Symposia and Special Sessions, General
Sessions will be an important part of
the meeting. General Sessions of particular
interest to SEG members include
Economic Geology (GS02); Isotope
Geology and Geochronology (GS10);
Petrology (Igneous, Metamorphic) and
Volcanology (GS14); Precambrian
Geology (GS15); and Structural Geology
and Tectonics (GS18).
WORKSHOPS (WS)
WS 1.
SEG WORKSHOP: UNDERSTANDING
GEOPHYSICAL INVERSIONS FOR
MINERAL EXPLORATION
Organizers: Douglas Oldenburg
(doldenburg@eos.ubc.ca) and Francis
Jones (fjones@eos.ubc.ca); The
University of British Columbia –
Geophysical Inversion Facility
In the last decade it has become possible
to invert nearly all types of geophysical
survey data to obtain 3D images of
physical properties. These results have
been exceedingly valuable in helping
answer a variety of questions in the
geosciences. In this workshop we present
the basic concepts of geophysical
inversion put into the context of mineral
exploration. Mathematical details
are minimized and our goal is to help
explorationists understand how the
images have been obtained and how
they can be used in interpretation. Case
histories, where numerous types of geophysical
data over a particular deposit
are inverted, provide a unifying theme
for our presentation. Answering geologic
questions at the regional and
deposit scale leads naturally to the use
of various geophysical surveys, and
throughout the day we will consider
magnetic, gravity, dc resistivity, IP and
electromagnetic data sets. For each of
these we outline the basic principles of
the geophysical survey, show how the
data can be inverted, and show the
impact in answering the geologic questions.
The workshop will conclude with
a vision for the future and a discussion
period. The linked special session SS12
further explores these issues.
Date: May 25, 2003 (Preconference).
Cost: $150CDN.
SHORT COURSES (SC)
SC 1.
MAC SHORT COURSE: THE
ANALYSIS AND INTERPRETATION
OF FLUID INCLUSIONS
Organizers: Iain Samson
(ims@uwindsor.ca),
Alan Anderson (aanderso@stfx.ca)
and Dan Marshall (marshall@sfu.ca)
Date: May 24-25, 2003 (Preconference).
Cost: $290CDN.
SC 2.
GAC-MDD and MDRU SHORT
COURSE: ALKALINE Cu-Au
PORPHYRIES AND Fe-OXIDE
Cu-Au DEPOSITS: DISTINCT
DEPOSIT TYPES, A CONTINUUM
OR GENETIC LINKAGE?
Organizers: Dick Tosdal
(rtostal@eos.ubc.ca), Moira Smith
(moira.smith@teckcominco.com),
and Murray Hitzman
(mhitzman@mines.edu)
Date: May 24-25, 2003 (Preconference).
Cost: $350CDN.
SC 4.
MAC SHORT COURSE:
ENVIRONMENTAL ASPECTS
OF MINE WASTES
Organizers: John L. Jambor
(jLjambor@aol.com),
David Blowes, and Ian Ritchie.
Date: May 24-25, 2003 (Preconference).
Cost: $350CDN.
FIELD TRIPS
PRECONFERENCE FIELD TRIPS
A1.
VOLCANOGENIC MASSIVE
SULPHIDE DEPOSITS AT MYRA
FALLS, VANCOUVER ISLAND
Organizers: Albert Chong, Finley
Bakker and other Boliden-Westmin
mine staff and Robert Pinsent
Two-day field trip to visit the Myra Falls
Mine located on Vancouver Island. The
Boliden-Westmin operation is mining
polymetallic volcanogenic massive sulphide
deposits hosted by the Sicker
Group volcanics. The visit will include
an underground mine tour and examination
of drill core.
Trip fee: $295CDN
Date: May 24-25, 2003
Capacity: 10 to 28
to page 34 ...
ANNOUNCEMENTS

34 SEG NEWSLETTER No 53 • APRIL 2003
... from 33
SEG-GAC-MAC Joint Spring Meeting 2003 (Continued)
ANNOUNCEMENTS
A2.
CORDILLERAN ORE DEPOSITS
FIELD TRIP
Organizers: Trygve Höy and
Dave Lefebure
(dave.lefebure@gems8.gov.bc.ca)
and mine geologists
Visit a variety of mineral deposits
hosted by Cordilleran sedimentary
rocks, including sedex, Irish, Mississippi
Valley, vein, skarn and manto types.
Informal discussions and presentations
will review many aspects of the deposits,
such as their genesis, key exploration
characteristics and tectonic setting. The
field trip will cover much of southeastern
British Columbia and parts of
northern Washington State including
stops at significant past producers.
Trip fee: $707CDN
Date: May 21-25, 2003
Capacity: 10 to 20
A3.
CORDILLERAN CROSS SECTION:
CALGARY TO VANCOUVER
Organizers: Jim Monger
(jmonger@NRCan.gc.ca) and
Ray Price
A repeat of the popular field trip to
examine the stratigraphy, structure and
tectonic history of the southern
Canadian Cordillera. The field trip combines
surface geology with results
mainly from the southern Cordilleran
Lithoprobe transect to examine evidence
bearing on evolution of this
accretionary orogen, with its implications
for the origin and growth of new
continental crust. On the first day, we
cross the Foreland Belt with its classical
fold and thrust structures and the
Omineca Belt, which is the region of
tectonic overlap between the accreted
terranes and craton margin deposits,
and explore the relationship between
initiation in Jurassic time of deformation
leading to the present Cordillera
and its termination in the Tertiary. On
the second day, we will examine late
Paleozoic and early Mesozoic island arc
and subduction complex terranes in the
Intermontane Belt that were accreted in
the Jurassic to Precambrian through
early Mesozoic strata deposited near the
North American craton margin. On the
last day, we will cross the Coast Belt,
given integrity by events during and following
Cretaceous accretion of Insular
Superterrane to previously accreted terranes.
The trip will not involve hikes
away from the bus, although some road
cuts examined will be up to 0.5 km long.
Trip fee: $637CDN
Date: May 23-25, 2003
Capacity: 45
POST-CONFERENCE
FIELD TRIPS
B1.
HIGHLAND VALLEY PORPHYRY
COPPER DEPOSITS
Organizers: W.J. McMillan and
Mike Cathro
(mike.cathro@gems2.gov.bc.ca)
This two-day field trip will visit the
Valley Copper and Lornex open pits to
examine these classic porphyry deposits
and examine the various phases of the
host Guichon Batholith. Don’t miss this
chance to visit the world’s third largest
copper mine and one of the most efficient
mining operations in the world.
Trip fee: $198CDN
Date: May 28-29, 2003
Capacity: 10 to 40
B2.
PGE ENVIRONMENTS IN THE
CORDILLERA
Organizers: Graham Nixon
(graham.nixon@gems8.gov.bc.ca),
Robert Pinsent and Mike Cathro
(mike.cathro@gems2.gov.bc.ca)
A three to four day field trip visiting
Alaskan and Alkaline intrusive complexes
with associated platinum group
element mineralization in southern
British Columbia, including the
Tulameen, Allandale, Sappho and
Averill areas. Field trip will visit known
mineral occurrences and examine their
relationship to the host intrusive rocks.
Trip fee: $418CDN
Date: May 28-31, 2003
Capacity: 10 to 20 1
PUBLICATIONS OF INTEREST
(Note: not available through SEG or Sheahan:
Please order directly from the source, provided below)
Patricia Sheahan (consultant to MDRU-UBC)
44 Gemini Rd. Toronto, Ontario Canada M2K 2G6
Tel. +416.223.7750 Fax +416.223.4229
E-mail: konsult@compuserve.com
•••••••••••••••••••••••••••••••••••••••••••
■ Recent Developments in Exploration and Mining in Northern Ontario. PGE Roby
Zone; Gold Red Lake Mine, Pd Legris Lake, Cu-PGE Two Duck Lake, Diamond
Victor Kimberlite, Phosphate Cargill, Tantalum, PGE Copper Nickel Copper Cliff ,
Sudbury Igneous Complex. Exploration and Mining Geology Volume 10,1-2, 2001
(pub. 2002), Canadian Institute Mining, Metallurgy. Web-site: < www.cim.org>.
Single Issue CDN$40.00, US$27.00. Accept Visa.
■ The Timing and Location of Major Ore Deposits in an Evolving Orogen.
D.J. Blundell, F. Neubauer, A. Von Quadt, 2002. 400 p. Geological Society of London
Publishing House, Special Publication 204, $142.00. Web-site: .
Accept Visa.
■ Applied Mineral Inventory Estimation. A.J. Sinclair, 2002 . 640 p. Blackwell
Publishing. Web-site: . US$110.00. Accept Visa.
■ Kimberlites, Orangeites, Lamproites, Melilitites and Minettes: A Petrographic
Atlas. R.H. Mitchell, 1998, (color). Almaz Press Inc., web-site:
or E-mail: . US$100.00.
■ Giant Ore Deposits: Characteristics, Genesis and Alteration. Three-day workshop
held June 2002. 269 p. University of Tasmania CODES Special Publication 4,
E-mail: . Aus$90.00. 1

APRIL 2003 • No 53 SEG NEWSLETTER 35
A N N O U N C E M E N T
SEG
WORKSHOP
W1
UNDERSTANDING GEOPHYSICAL
INVERSIONS FOR MINERAL EXPLORATION
May 25, 2003
Instructors: Douglas Oldenburg and Francis Jones
The University of British Columbia – Geophysical Inversion Facility
This workshop will be held preconference in Vancouver, BC (SEG-GAC-MAC Joint Spring Meeting).
Geologists and geophysicists are routinely confronted with 3-D images of physical properties that have been
obtained by inverting geophysical survey data. These images have played an important role in discovering new deposits
or defining existing ones. This workshop is for anyone who may expect to have to work with such information. The workshop’s
goal is provide participants with a firm understanding of how the 3-D images were obtained and how they can be
used in interpretation. Mathematical details are minimized, and case histories involving numerous types of geophysical
data will provide a unifying theme. The need to answer geologic questions at regional scales and at deposit scales leads
naturally to the use of various geophysical surveys. Therefore, we will consider magnetic, gravity, DC resistivity, IP and
electromagnetic data sets. For each of these we will first show how the data can be inverted. Then we will discuss how to
maximize the impact these results can have on solutions to geologic questions. The workshop will include guided discussions,
and an outline of expectations for future developments. The linked session SS12 and SS16 further explores these
issues.
For more information, contact Francis H.M. Jones, M.Sc. P.Eng., UBC Department of Earth & Ocean Sciences,
6339 Stores Road, Vancouver, BC, V6T 1Z4; Tel. 604.822.2138; Fax 604.822.6088; E-mail: fjones@eos.ubc.ca;
Website:
32nd International
Geological Congress
Florence, Italy
August 20-28, 2004
A Symposium on
Hydrothermal Mineralization on
Sediment-Covered Ridges
Conveners: James M. Franklin and Randolph A. Koski
Abstracts of presentations that describe recent or
current research on all aspects of hydrothermal
mineralization at sediment-covered ridge axes are
invited; formats are oral presentations
(morning session) or posters (afternoon session).
Abstract deadline: late November 2003.
View the first circular at: .
For further information and
expression of interest, contact:
• Jim Franklin (jfranklin4@compuserve.com)
• Randy Koski (rkoski@usgs.gov)
Australasia/Oceania SEG
Lotto Winner
The winner of the Australasia/Oceania
SEG Lotto drawing is Robert J. Gunthorpe
of Flagstaff Hill, South Australia.
Bob wins a free registration and
return airfare to the
SEG 2004 Conference “Prospective
Mineral Discovery Under Cover” in Perth,
September 27–30, 2004. SEG members
living in Australasia who sponsored a
regular new member from the Region
during 2002 were entered in the drawing.
ANNOUNCEMENTS

36 SEG NEWSLETTER No 53 • APRIL 2003
NOW AVAILABLE!
On-line Journal Access
The Economic Geology journal is now on-line
for SEG members, who can subscribe to this
additional service via the SEG secure server.
Cost is US$10 per membership year.
As SEG gold members, those who sign up will
have full access starting with the first issue of
the 2003 volume (98:1).
To subscribe, go to SEG Homepage
and click on Go Gold:
On-line Access to Journal Articles.
Logging in requires your membership number.
At the on-line dues payment screen, tick the
Go Gold box and fill in the credit card
information at the bottom of the page.
ANNOUNCEMENTS
SYMPOSIUM:
CALL FOR PAPERS P
AND POSTERS
Exploring for Tethyan Ores: Development from historic roots
Organized by the Society of Economic Geologists
August 24–28, 2003
The Tethyan metallogenetic belt has been intensively explored since the dawn of civilization. Despite thousands
of years of mining in various parts of this belt, new discoveries of important orebodies are continuing, even in old
mining districts. Reconstruction of the complex geodynamic evolution of this belt is a key factor in the exploration for
ores. The tremendous amount of knowledge accumulated during the long history of mining, combined with new
results from academic and industry research, is leading to new syntheses.
This symposium aims to review the present state of our understanding about Tethyan metallogeny, highlight new
achievements related to mineral exploration in the belt, and trigger an exchange of ideas between academic and industry
experts. Keynote lectures will focus on the geodynamic evolution and economic geology of the western half of the
Tethyan orogenic belt that stretches from Iran to Central Europe. This region has experienced renewed exploration
interest during the past decade, with several important discoveries.
Oral and poster presentations on the following topics are welcome:
• The plate tectonic aspects of ore formation,
• Case studies describing new deposits within their tectonic setting, and
• Exploration in old mining districts as well as new target areas.
In conjunction with the theme of this symposium a post-conference field trip is being considered to the
Cretaceous deposits of the Srednogorie zone in Bulgaria. This trip will visit working porphyry and epithermal mines
as well as other deposits.
For further information please contact: Ferenc Molnár at the Department of Mineralogy, Eötvös Loránd University,
Budapest, Pázmány Péter s. 1/C, 1117 Hungary; Fax: 36 1 381 2110; e-mail: molnar@abyss.elte.hu; or visit the SEG
website: .

APRIL 2003 • No 53 SEG NEWSLETTER 37
Call for Nominations for SEG Traveling Lecturers
International Exchange Lecturer
Thayer Lindsley Visiting Lecturer
Regional Vice-President Lecturer
Nominations for SEG Traveling lecturers are invited.
International Exchange lecturers present at sites selected for greatest involvement of industry, academic,
and government geologists. Thayer Lindsley lecturers visit colleges and universities.
Regional Vice-President lecturers mainly present within one or more of the SEG global regions.
Travel support is provided by SEG for those who are chosen.
To be selected, nominees must (1) have widely recognized expertise in a field of economic geology;
(2) have known competence as a public speaker; and (3) be able to represent SEG as an enthusiastic
and effective ambassador.
Nominations can be made to the Chair of the relevant selection subcommittee (International
Exchange: Steve Garwin, sgarwin@q-net.net.au; Thayer Lindsley: Jamie Wilkinson, J.Wilkinson@ic.ac.uk;
Regional Vice-President: Noel White, white.noel@bigpond.com); or to Christine Horrigan at SEG
Headquarters (christinehorrigan@segweb.org). Nominations should include a description of less than 300
words that specifies the nominee’s area of expertise and justifies his/her capabilities with cited examples
of excellence in lecturing.
Nominations must be received no later than June 30, 2003.
Call for Nominations –
Lindgren Award for 2004
DEADLINE: AUGUST 31, 2003
The Society of Economic Geologists is soliciting nominations for the
2004 Lindgren Award. The Lindgren Award is offered annually to a geologist
whose published research represents an outstanding contribution
to economic geology. The contribution shall be measured by consideration
of one to three papers published by age 35. The recipient must be
less than 37 years of age on January 1 of the year in which the award is
presented. The award shall not be restricted as to the candidate’s
nationality, place of employment, or membership in the Society.
The deadline for submitting nominations is August 31, 2003. The nomination
should include the following: (1) the name, date and location of
birth, education and professional affiliation of the candidate; (2)
Citation(s) of publication(s) for which the award is to be made (note
critical papers and provide reprints, if possible), and other published
works; (3) A brief statement explaining the significance of the research,
to include its pertinence to economic geology, its demonstrated effects,
the originality and creativity shown in the research. the clarity of presentation,
and its impact on scientific theory or technology.
Nominations should be sent,
preferably in electronic format via e-mail, to:
Dr. Jeremy P. Richards, Dept. Earth and Atmospheric Sciences
University of Alberta, Edmonton, Alberta, Canada, T6G 2E3
Tel: (780) 492-3430 Fax: (780) 492-2030
E-mail: Jeremy.Richards@ualberta.ca
2003
Call for Nominations
for Penrose and SEG Silver
Medals and Marsden
Award
Nominations for the Society’s Penrose Gold
and Silver Medals and the Marsden Award
are due by September 1, 2003, for review by
the SEG Council. Members and Fellows of
the Society are urged to participate in this
important process by nominating outstanding
candidates for these prestigious
honors.
••••• How To Nominate •••••
The SEG award nomination form may be
obtained from the SEG website. Go to
and click on the
“Forms” button; then click on the “Award
Nominations” to download the PDF form.
If you do not have access to our website,
you may request a copy of the nomination
form from SEG Headquarters.
ANNOUNCEMENTS

38 SEG NEWSLETTER No 53 • APRIL 2003
B1 Cretaceous Porphyry-Epithermal
Systems of the Srednogorje Zone,
Bulgaria
ANNOUNCEMENTS
A Special Issue of the
Journal of Exploration and Mining Geology
on
ANCIENT AND MODERN
SEAFLOOR VOLCANOGENIC
MASSIVE SULFIDE DEPOSITS
Peter A. Rona and Zengqian Hou, Guest Editors
A special double issue of the journal, Exploration and Mining
Geology, was published on March 21, 2001 (backdated
Volume 8, Numbers 3 and 4, July and October 1999), dedicated
to the memory of the eminent Russian ocean ridge geologist
Sergey Krasnov (1952-1996). The special issue accesses
for the first time new Chinese work on volcanogenic massive
sulfide (VMS) deposits, as well as related seafloor hydrothermal
research by the international community. The Chinese
papers report a surge in exploration for and discovery of
ancient VMS deposits in P.R. China, stimulated by discoveries
of active systems at ocean ridges and volcanic island arcs.
A summary of topics of the issue and ordering information
follows:
Eulogy for Sergei Krasnov
ANCIENT VOLCANOGENIC MASSIVE
SULFIDE DEPOSITS IN CHINA
MODERN SEAFLOOR HYDROTHERMAL
DEPOSITS
Volcanic Island Arcs and Ocean Ridges
Volcanic Island Arcs
Ocean Ridges
The special issue may be ordered from:
Publisher, Geological Society of the Canadian Institute of
Mining, Metallurgy and Petroleum
Suite 1210, 3400 de Maisonneuve Blvd.
West Montreal, Quebec
Canada H3Z 3B8
Tel.: (514) 939-2710, ext. 320; Fax: (514) 939-2714;
E-mail: publications@cim.org
Website: http://www.cim.org/geosoc/emgVol8-03.cfm
Price: CDN$40.00/US$27.00
PREPAYMENT REQUIRED IN CANADIAN OR U.S. FUNDS
August 29–September 2, 2003
Organized by the Society of Economic Geologists
Field trip leaders:
Prof. Kamen Bogdanov, Sofia University, and
Prof. Strashimir Strashimirov, Mining University, Sofia
The Srednogorie metallogenic zone in Bulgaria developed during the
Mezosoic as an andesite-dominated island-arc system within the
global Tethyan-Eurasian copper belt. Significant examples of discrete
Upper Cretaceous volcano-plutonic centers with porphyry-copper
(-Au-PGM) deposits (Elatsite, Medet, Assarel), closely associated
with intermediate- to high-sulfidation (HS) Cu-Au epithermal
deposits (Chelopech, Radka, Elshitsa) occur in the Panagyurishte ore
district. Since 1950 more than 460 Mt of ore has been mined from
these deposits, producing about 2 Mt Cu and 2.5 Moz of gold.
During the three-day field trip the participants will tour the
three major porphyry-copper deposits in Bulgaria (Elatsite, Assarel
and Medet) as well as the Chelopech HS epithermal Cu-Au mine,
learn about the local geology, see and sample host-rock alteration
styles and important ore types, and discuss their genesis.
The field trip starts in Sofia, Bulgaria, on August 30. The registration
fee includes accommodation in Sofia from August 29 to
September 2 (4 nights). Participants are asked to arrange their own
travel between Athens and Sofia.
DAY 1 (August 30):
Sofia; Pangyurishte ore district;
Assarel and Medet porphyry
copper deposits; Lunch
at Panagyurishte; Sofia
DAY 2 (August 31):
Sofia; Etropole-Elatsite Cu-Au-
PGM porphyry-copper deposit;
Lunch in Etropole; Sofia
DAY 3 (September 1):
Sofia; Navan-Chelopech HS
epithermal Cu-Au deposit;
Lunch at Koprivshtitsa; Sofia
(accommodations in Sofia
included)
Provisional cost: SEG and
SGA members US$395; nonmembers
US$495, for early
payment by 30 June; after
this date, SEG and SGA members
US$495, non-members
US$595; SEG and SGA student
members, US$200 (limited
seats available).
Maximum number of
participants: 36, minimum
number of participants: 20
Registration deadline
April 25th. Please send your
request for a registration form
to Prof. Kamen Bogdanov ,
Sofia University St. Kliment
Ohridski” Faculty of Geology
and Geography, Department of
Mineralogy, Petrology and
Economic Geology, 15 Tsar
Osvoboditel Bd. 1504 Sofia,
BULGARIA
tel. (+3592) 9308256,
fax: (+3592) 9460255,
e-mail: kamen@gea.uni-sofia.
bg OR to SEG, 7811 Shaffer
Parkway, Littleton, CO 80127,
USA, tel.: (+1-720) 981-7882,
fax: (+1-720) 981-7874,
E-mail: seg@segweb.org, or
visit the SEG website at
www.segweb.org.
Registration and payment
should be made directly to
the SEG office.

APRIL 2003 • No 53 SEG NEWSLETTER 39
Ore Deposits Mapping Course in Nevada
October 12–15, 2003
Organizers: Erich U. Petersen, William X. Chávez, Jr., and Jeffrey W. Hedenquist
A three-day mapping course will be held this fall
in Nevada. The course will emphasize the field and
geochemical characteristics of epithermal precious
metal systems, with discussion of the “what to map”
features exposed in the Goldfield, Cuprite, and
Original Bullfrog mining districts of western Nevada.
Participants will assemble on Sunday afternoon,
October 12, in Las Vegas, Nevada, and travel to
Beatty. The first evening session will present the
opportunity to see and discuss hand specimens
from the field-trip areas as well as specimens from
other epithermal style Au-Ag deposits. During field
sessions at Goldfield, participants will observe a
“high-sulfidation” quartz-alunite hydrothermal system,
with emphasis on the structural, alteration, and
mineralization styles. The Cuprite area offers the
chance to see a variety of alteration features,
notably changes in alteration assemblages associated
with changes in rock types. Finally, at the
Original Bullfrog Mine, trip participants will observe
and discuss a well developed “low-sulfidation”
quartz-Au system associated with development of
abundant, multi-generation silica within a low-angle
faulting environment.
The course will end late Wednesday afternoon,
October 15, in Las Vegas. Participants will be
responsible for their own departure plans.
Course fees cover the following: three nights (Oct.
12-13-14) double-occupancy lodging, three breakfasts,
lunches, and field snacks (Oct. 13-14-15), transportation
to/from Las Vegas (we can drop people
off at the airport on the 15th), and a course field
manual. For more course and registration information,
please see the SEG website at , or contact Erich U. Petersen
(), William X. Chávez, Jr.
(), or Jeffrey W. Hedenquist
(hedenquist@aol.com).
UNESCO-SEG Metallogeny
Course in Quito
June 1–12, 2003
The 2003 edition of the UNESCO-SEG Metallogeny
Course will be held in Quito, Ecuador, at the
Universidad Central del Ecuador, from June 1 to 12.
Those among the international instructors this year
who have confirmed include the following
Lluís Fontboté (Geneva, Switzerland, coordinator),
Larry Meinert (Washington State University)
and Massimo Chiaradia (Leeds University, UK).
Other instructors, the detailed program
(including field trip) and the travel grant
application forms will be posted on the website:
ANNOUNCEMENT
Call for Papers & Publication
Volcanic, Geothermal & Ore-forming Fluids:
Rulers & Witnesses of Processes in the Earth
A Tribute to Werner F. Giggenbach
Special Session (oral/poster presentations) at the
Goldschmidt Conference 2003,Kurashiki, Japan
September 7-12
http://www.ics-inc.co.jp/gold2003/
Subjects: volcanic-geothermal systems and ore-forming environments;
sources of fluids in the crust, their interaction with rocks at crustal
& deeper levels, & processes that affect their composition.
Contributors contact
Jeff Hedenquist (hedenquist@aol.com)
Stuart Simmons (sf.simmons@auckland.ac.nz)
A special volume co-sponsored by
the SE G & the Geochemical Society
will be published in 2003
ANNOUNCEMENTS

40 SEG NEWSLETTER No 53 • APRIL 2003
personal notes & news
CAREER-RELATED
CHANGES
ROBERT W. SCHAFER (SEG 1986 F)
has been appointed president and chief
executive officer of Coniagas Resources,
Toronto, Ontario, Canada, and was
elected to the board of directors.
Previously, Bob was vice president of
exploration for Kinross Gold.
MICHAEL THOMSEN (SEG 1999) has
been appointed executive chairman of
the Board of Directors of Cambridge
Mineral Resources plc. He had been
executive business development director
of the board. Prior to that, he was
exploration director of Newmont
Mining Corporation and held various
positions within the Gold Fields Mining
Company and Freeport McMoRan, Inc.
Corrections
The January Newsletter (“Personal Notes
& News,” note on J. David Lowell, p. 50)
gave an erroneous location for the
Pierina mine; the mine is in central Peru.
AWARDS &
ACCOMPLISHMENTS
TRYGVE HOY (SEG 1997) was
awarded the 2002 Provincial Geologist’s
Medal by the British Columbia Geological
Survey. Trygve joined the Survey in
1974 and over the years has become an
expert on the evolution of the margin of
western North America and the setting
of the giant Sullivan orebody. He
helped organize the Sullivan project, a
five-year effort that culminated in The
Sullivan Volume, which includes an
overview by Hoy and others of the
Purcell basin. He has also worked on
VMS deposits in British Columbia and
most recently, proposed that the
Monashee complex might be an example
of the Broken Hill-type deposit.
DOUGLAS SILVER (SEG 1983 F) was
asked to speak on exploration at the
PDAC-CIM luncheon on March 12. Doug
is president of Balfour Holdings, Inc.
DEATHS
MARK ALBERT MILLER (SEG 1987 F)
died Nov. 8, 2002, in Tucson, AZ. He
was 50 years old.
Mark completed a bachelor of science
degree at University of Missouri-
Rolla, beginning a 28-year career in
grassroots metal exploration as well as
mine development and operations. He
worked for Kerr-McGee, Cominco, and
New Jersey Zinc. For 22 years, he was
employed by Asarco, working in a variety
of mining districts, including lead
and zinc in Tenessee, Kentucky. and
the Viburnum trend. Mark was also
involved in porphyry copper deposit
management at Ray, Silver Bell,
Sacaton, and Mission mines in Arizona.
Most recently, he managed a multimillion-dollar
program at Silver Bell. Mark
was an active member of several organizations,
including the Society of
Mining, Metallurgy, and Exploration
and the Arizona Geological Society.
Society of Economic Geologists
Epithermal Gold
Mineralization and
Modern Analogues,
Kyushu, Japan
Guidebook Prepared for the Society
of Economic Geologists Field Trip
28 October-3 November 2001
Guidebook
Series
w.segweb.org
Edited by:
Craig A. Feebrey,
Toshihiko Hayashi,
Sachihiro Taguchi
Series Editor:
Tommy B. Thompson
©2001, Society of
Economic Geologists, Inc.
Volume 34
POST-CONFERENCE SALE
Society of Economic Geologists
Global Exploration 2002:
Integrated Methods for Discovery
Co-sponsored by:
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APRIL 2003 • No 53 SEG NEWSLETTER 41
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42 SEG NEWSLETTER No 53 • APRIL 2003
SOCIETY OF ECONOMIC GEOLOGISTS
Publications Order Form
Full details on publications are available on-line at www.segweb.org / Publications
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GUIDEBOOK SERIES:
GB 8: Industrial Mineral Resources of the Delaware Basin,
Texas, and New Mexico: J.R. Kyle, Editor; 1990, 203p. $24.00 $19.20
GB 22: Carbonate-Hosted Lead-Zinc-Fluorite-Barite Deposits
of North America: Kula C. Misra, Editor; 1995, 254p. $36.00 $28.80
GB 23: Field Guide to Zinc-Lead Mineralization on the Southeast
Lennard Shelf, Canning Basin, Western Australia:
Julian Vearncombe, et al., Editors; 1995, 218p; 4 colored plates $36.00 $28.80
GB 28: The Carlin-Type Gold Deposits Field Conference:
Peter G. Vikre, et al., Editors; 1997, 294p.; 3 colored figures $36.00 $28.80
GB 29: Geology and Ore Deposits of the Oquirrh and Wasatch
Mountains, Utah: David A. John & Geoffrey H. Ballantyne, Editors;
1997 (Revised 1998), 308p; 19 colored figures, 2 oversize
colored plates (in pocket) $40.00 $32.00
GB 30: Gold Deposits of Northern Sonora, Mexico: K.F. Clark,
Editor; 1998, 252p.; 12 colored figures, 1 oversized figure,
2 oversized plates (in pocket) $36.00 $28.80
GB 31: Epithermal Mineralization of the Western Carpathians:
Ferenc Molnár, Jaroslav Lexa, & Jeffrey W. Hedenquist, Editors;
1999, 274p. $36.00 $28.80
GB 32: PART I. Contrasting Styles of Intrusion-Associated
Hydrothermal Systems: John H. Dilles, et al., Editors;
PART II. Geology & Gold Deposits of the Getchell Region;
Elizabeth Jones Crafford, Editor; 2000, 234p. $40.00 $32.00
GB 34: Epithermal Gold Mineralization and Modern Analogues,
Kyushu, Japan: Craig A. Feebrey, Toshihiko Hayashi, & Sachihiro
Taguchi, Editors; 2001 188p. AVAILABLE ON CD ONLY! $36.00 $28.80
GB 35: PART I. Proterozoic Iron and Zinc Deposits of the Adirondack
Mountains of New York and the New Jersey Highlands: John F. Slack,
Editor; PART II. Environmental Geochemistry and Mining History of
Massive Sulfide Deposits in the Vermont Copper Belt;
Jane M. Hammarstrom & Robert R. Seal II; 2001, 294p. $36.00 $28.80
ECONOMIC GEOLOGY MONOGRAPH SERIES:
EG Mono 9: Mineral Deposits of Alaska: R.J. Goldfarb &
L.D. Miller, Editors; 1997, 483p., 9 colored figures $45.00 $36.00
EG Mono 10: The Giant Kidd Creek Volcanogenic Massive
Sulfide Deposit, Western Abitibi Subprovince, Canada:
Mark D. Hannington & C. Tucker Barrie, Editors; 1999, 676p.,
32 colored figures; hard bound. $60.00 $48.00
10-Volume Bibliography and Index, Volumes 81-90, 1986-1995 $20.00 $16.00
ECONOMIC GEOLOGY JOURNAL SPECIAL ISSUES:
Vol. 95:4 Special Issue on Voisey’s Bay Ni-Cu-Co Deposit:
Editors, Anthony J. Naldrett & Chusi Li, 255p. $20.00 $16.00
Vol. 95:6 Special Issue Devoted to Skarn Deposits: Editors,
Lawrence D. Meinert, David R. Lentz & Rainer J. Newberry, 187p. $20.00 $16.00
Vol. 96:2 Special Issue Devoted to Porphyry Copper Deposits of
Northern Chile: Editors, John H. Dilles & Francisco Camus,
197p., color fold-out map $25.00 $20.00
Vol . 96:5 Special Issue Devoted to Alteration Associated with
Volcanic-Hosted Massive Sulfide Deposits and its Exploration
Significance: Editors, J. Bruce Gemmell & Walter Herrmann,
413p., color fold-out map $40.00 $32.00
Vol . 97:4 Special Issue Devoted to the Early to Middle
Archean Mineral Deposits of the North Pilbara Terrain,
Western Australia: Guest Editors, David L. Huston,
Arthur H. Hickman, & Peter L.F. Collins, 237p. $25.00 $20.00
Vol. 97:7 Special Issue Devoted to the
Mineral Deposits of the Sudbury Basin:
Guest Editors, C.M. Lesher & P.C. Thurston, 256p. $35.00 $28.00
02/03
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REVIEWS IN ECONOMIC GEOLOGY SERIES:
Rev. 2: Geology and Geochemistry of Epithermal Systems:
B.R. Berger & P.M. Bethke, Editors $10.00 $8.00
Rev. 3: Exploration Geochemistry: Design and Interpretation of
Soil Surveys: W.K. Fletcher,et al., Editors $10.00 $8.00
Rev. 5: Sedimentary and Diagenetic Mineral Deposits:
A Basin Analysis Approach to Exploration: E.R. Force,
J.J. Eidel & J.B. Maynard, Editors $10.00 $8.00
Rev. 6: PART A: The Environmental Geochemistry of Mineral Deposits:
Processes, Techniques, and Health Issues; G.S. Plumlee &
M.J. Logsdon, Editors; PART B: The Environmental Geochemistry
of Mineral Deposits: Case Studies and Research Topics;
L.H. Filipek & G.S. Plumlee, Editors; 1999, Volume set total 583p.
Sold only as a set $55.00 $44.00
Rev. 7: Applications of Microanalytical Techniques to
Understanding Mineralizing Processes: M.A. McKibben,
W.C. Shanks, III, & W.I. Ridley, Editors; 1998, 271p. $34.00 $27.20
Rev. 8: Volcanic-Associated Massive Sulfide Deposits:
Processes and Examples In Modern And Ancient Settings:
C. Tucker Barrie & Mark D. Hannington, Editors; 1999, 416p. $40.00 $32.00
Rev. 9: Ore Genesis and Exploration: The Roles of Organic Matter:
Thomas H. Giordano, Richard M. Kettler, & Scott A. Wood, Editors;
2000, 340 p. $49.00 $39.20
Rev. 10: Techniques in Hydrothermal Ore Deposits Geology:
J.P. Richards & P.B. Larson, Editors; 1998, 264p. $34.00 $27.20
Rev. 11: Metamorphosed and Metamorphogenic Ore Deposits:
P.G. Spry, B. Marshall, & F.M. Vokes, Editors; 2000, 310p. $44.00 $35.20
Rev. 12: Application of Radiogenic Isotopes to Ore Deposit
Research and Exploration: David D. Lambert & Joaquin Ruiz,
Editors; 1999, 208p. $32.00 $25.60
Rev. 13: Gold In 2000: Steffen G. Hagemann & Philip E. Brown,
Editors; 2000, 560p.; 8 colored figures $69.00 $55.20
Rev. 14: Structural Controls on Ore Genesis: Jeremy P. Richards
& Richard M. Tosdal, Editors; 2001, 190p. $45.00 $36.00
SPECIAL PUBLICATIONS SERIES:
SP 3: Ore Reserve Estimates in the Real World:
J.G. Stone & P.G. Dunn; Third Edition, 2002, 121p. $37.00 $29.60
SP 4: Carbonate-Hosted Lead-Zinc Deposits:
D.F. Sangster, Editor; 1996, 672p.; hard bound $60.00 $48.00
SP 7: Geology and Ore Deposits of the Central Andes:
Brian J. Skinner, Editor; 1999, 368p. $38.00 $30.40
SP 8: New Mines and Discoveries in Mexico and Central America:
Tawn Albinson and Carl E. Nelson, Editors; 2001, 362p. $68.00 $54.40
SP 9: Integrated Methods for Discovery: Global Exploration in
the 21st Century: Richard J. Goldfarb and Richard L. Nielsen,
Editors; 2002, 392p. $59.00 $47.20
Global Exploration 2002: Integrated Methods for Discovery
Abstracts of Oral and Poster Presentations, Apr. 14-16, 2002;
Erin E. Marsh, Richard J. Goldfarb, and Warren C. Day, Editors; 150p. $10.00 $ 8.00
SEG Member Discount:
Members may purchase a single copy of
each publication at 20% off the listed price.
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APRIL 2003 • No 53 SEG NEWSLETTER 43
SOCIETY OF ECONOMIC GEOLOGISTS
Publications Order Form
Full details on publications are available on-line at www.segweb.org / Publications
TITLE LIST MEMBER
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TITLE LIST MEMBER
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SEG VIDEO SERIES: Note: Each tape includes two one-hour lectures*
Vid. 1: 1) The Genesis of Magmatic Ni-Cu (PGE) Sulfide Deposits
2) Physical Volcanology, Geochemistry and Petrogenesis of
Komatiite Basalt Lava Channels and Channelized Sheet Flows
in the Cape Smith Belt, New Quebec: C. Michael Lesher,
Laurentian University, Sept. 1998 $25.00 $20.00
Vid. 2: 1) Worldwide Exploration: Can We Afford It?,
2) Exploration Strategic Planning: Michael J. Knuckey, President,
Noranda Mining Exploration, Ltd., Nov. 1998 $25.00 $20.00
Vid. 3: 1) The Porphyry to Epithermal Continuum: Evidence from
Volcanoes and Ore Deposits, 2) Characteristics of and Exploration
for Epithermal Gold Deposits in the Circum Pacific: Jeffrey W.
Hedenquist, Consultant in Mineral Exploration, Ltd., April 1999 $25.00 $20.00
Vid. 4: 1) Epithermal Gold Deposits—Characteristics, Classes
and Causes 2) Convergent Evolution and Ore Deposits:
Noel C. White, Consulting Economic Geologist, Sept. 1999 $25.00 $20.00
Vid. 5: 1) Cordilleran Metallogeny of Western Canada
2) Intrusion-related Mineral Deposits: Tectonics, Magmas and
Fluids: John Thompson, Teck Corporation, Feb. 2000 $25.00 $20.00
Vid. 6: 1) Geology and Genesis of the Irish Zn-Pb-Ag Ore Field
2) The Lisheen Deposits, Ireland: Discovery and Delineation
of a Blind Zn-Pb-Ag Orebody: Murray W. Hitzman,
Colorado School of Mines, Sept. 2000 $25.00 $20.00
Vid. 7: 1) How Orebodies are Found 2) The Arequipa
Resources Pierina Project: David J. Lowell,
Lowell Mineral Exploration, Feb. 2001 $25.00 $20.00
Vid. 8: 1) Tectonic setting and structural controls in the giant
Eocene-Oligocene porphyry copper deposits of Northern
Chile 2) Late Cenozoic mineralization and crustal evolution
in a thickening arc: the Maricunga and El Indio mineral
belts: Constantino Mpodozis, Chilean Geological Survey, Mar. 2001 $25.00 $20.00
Vid. 9: 1) Mineral Resources and Mining: Supply, Demand the
Environment 2) Supergene Oxidation of Copper Deposits:
The Zoning of Copper Oxide Minerals and Applications to
Minerals Exploration: William X. Chavez, Jr., New Mexico
Institute of Mining, Apr. 2001 $25.00 $20.00
Vid. 10: 1) Reflections on the Bre-X Saga
2) Pioneering Mining in the Arctic: Graham Farquharson,
Strathcona Mineral Services, Ltd., Nov. 2001 $25.00 $20.00
Vid. 11: 1) Mississippi Valley-type Lead-Zinc Deposits through
Earth History: Implications for Ore Genesis, Crustal Fluid-Flow,
Paleoclimate, and Relation to Shale-Hosted (SEDEX) Deposits:
David L. Leach, U.S. Geological Survey, Mar. 2002 $25.00 $20.00
Vid. 12: 1) Discovery History and Geology of the Cannington
Ag-Pb-Zn Deposit 2) Advances in Micro-Analytical Technologies
— What a grain can tell you? Steve Walters,
Macquarie University, Apr. 2002 $25.00 $20.00
Make Check Payable To: Sub-Total ____________
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02/03

CalendarStar (★) indicates new entry. Send entries to the SEG Office,
attn. SEG Production Director: 7811 Shaffer Parkway, Littleton, CO 80127 USA
Tel. +1.720.981.7882 /Fax +1.720.981.7874.
SOCIETY OF ECONOMIC GEOLOGISTS
May 25–28, Geological Association of
Canada (GAC), Mineralogical Association of Canada
(MAC) and the Society of Economic Geologists (SEG)
Joint Annual Meeting, Vancouver, B.C. Canada. For
more information: Vancouver 2003, c/o Venue West
Conference Services Ltd., 645-375 Water Street,
Vancouver, B.C. Canada, V6B 5C6; Tel. +604.681.5226;
Fax +604.681.2503; E-mail: Vancouver 2003@
nrcan.gc.ca; website: www.Vancouver2003.com.
★
★
★
★
★
June 1–12. SEG-UNESCO Metallogeny Course, Quito,
Ecuador. Web-site: www.unige.ch/sciences/terre/mineral/
ore/min_ore.html.
Aug. 9–21. SEG/IGCP 473 Field Symposium, Urumqi,
China. Theme: “Paleozoic Geodynamic Processes and
Metallogeny of Chinese Altay and Tianshan”; E-mail:
jingwenmao@263.net; Circular: www.nhm.ac.uk/mineral
ogy/cercams/activities/Urumqi_firstcircularlast.doc.
Aug. 24–28. SEG Symposium at SGA Meeting,
Athens, Greece. Theme: “Exploring for Tethyan ores:
Development from historic roots”; E-mail: molnar@
abyss.elte.hu; Web-site: www.segweb.org/meetings/htm.
Aug. 24–28. 7th Biennial SGA-SEG Meeting, Athens,
Greece. For information on the SEG symposium on
Tethyan metallogeny and related SEG field trip, see the
advertisement, p. 45 and p. 48. Abstract submission
deadline: January 31, 2003. Registration details:
www.igme.gr/sga conference.htm.
Aug. 29–Sept. 2 B1 Cretaceous Porphyry-Epithermal
Systems of the Srednogorje Zone Field Trip, Bulgaria.
Organized by the Society of Economic Geologists.
Registration deadline: April 25, 2003. Send requests for
a registration form to Prof. Kamen Bogdanov , Sofia
University “St. Kliment Ohridski” Faculty of Geology and
Geography, Department of Mineralogy, Petrology and
Economic Geology, 15 Tsar Osvoboditel Bd., 1504 Sofia,
BULGARIA; Tel.+3592.9308256; Fax +3592.9460255;
E-mail: kamen@gea.uni-sofia.bg; OR to SEG at 7811
Shaffer Parkway, Littleton, CO 80127, USA, tel.
+1.720.981.7882; Fax +1.720.981.7874; E-mail:
seg@segweb.org; Website: www.segweb.org.
Registration and payment will be made directly to the
SEG office.
Sept. 7–12. SEG Session at the Goldschmidt
Conference, Kurashiki, Japan. Theme: “Volcanic,
★
★
★
Geothermal and Ore-forming Fluids: Rulers and
Witnesses of Processes in the Earth”—A Tribute to
Werner F. Giggenbach; E-mail: hedenquist@aol.com;
Web-site: www.ics-inc.co.jp/gold2003/.
Oct. 6–10. Andean Metallogenesis: New Concepts,
Discoveries and Updates Symposium held in conjunction
with the 10 th Chilean Geological Congress,
Concepción, Chile. Organized by Jose Perello and
Richard H. Sillitoe under sponsorship of SEG. Contacts:
10 th Chilean Geological Congress, Comite organizador,
Dept. Ciencias De Latier, Universidad De Concepcion,
Casilla 160-C, Concepcion, Chile, Tel./Fax
+56.41.246075; E-mail: cgeologico@udec.cl; website:
www.udec.cl/cgeologico and Symposium: Jose Perello
at E-mail: jperello@aminerals.cl.
OTHER EVENTS
June 7–12, Classic Clay and Minerals: Joint
Clay Minerals Society (CMS) and Mineralogical
Society of America (MSA) Meeting, Athens, Georgia.
For more information contact: Paul Schroeder,
E-mail: schroe@srel.edu; website: www.gly.uga.edu.
June 22–27. 8 th International Kimberlite Conference,
Victoria, British Columbia, Canada. For more information
contact, Dr. Roger H. Mitchell, Geology Department,
Lakehead University, Thunder Bay, Ontario, Canada P7B
5E1; Tel. +1.807.343.8287; Fax: +1.807.623.7526;
E-mail: Roger.Mitchell@lakeheadu.ca;
Web-site: www.venuewest.com/8IKC.
July 12–18. 6 th International Conference of Acid
Rock Drainage: ICARD 2003, Cairns, Queensland,
Australia. Contact: Tel. +61.3.9662.3166; Fax:
+61.3.9662.3662; E-mail: miriamw@ausimm.com.au.
Aug. 16–22. SCANDIUM 2003. An International
Symposium on the Mineralogy and Geochemistry of
Scandium. Geological Museum at the Natural History
Museums and Botanical Garden, University of Oslo,
Norway. Web site: http://www.nhm.uio.no/
geomus/scsymp/
Aug. 19–21. Fermor Flagship Meeting: World Class
Mineral Deposits and Earth Evolution, Cardiff, United
Kingdom. Organized by the Geological Society of
London’s Mineral Deposits Studies Group (MDSG). For
more information contact Iain McDonald, Dept. of Earth
★
Sciences, Cardiff University, P.O. Box 914, Cardiff, CF10
3YE, United Kingdom; E-mail: mcdonaldil@cf.ac.uk;
Website: http://www.mdsg.org.uk.
Aug. 29–Sept. 3. 21 st International Geochemical
Symposium (IGES) of the Association of Exploration
Geochemists, Dublin, Ireland. Contact: Eibhlin Doyle;
E-mail: eibhlindoyle@gsi.ie; Web-site: http://www.aeg.
org/Symposia/21stSymposiumTrip/21st_international_
geo chemical_s.htm.
Sept. 7–11. 6 th International Symposium on Environmental
Geochemistry, Edinburgh, Scotland. Contact
Janet Beard, In Conference Ltd., 10b Broughton Street
Lane, Edinburgh, EH1 3LY, Scotland, UK; Tel. +44(0)131.
566.9245; Fax +44(0)131.556.9638; E-mail: Janet@
in-conference.org.uk; Website: www.iseg2003.com.
Sept. 8–12. International Congress on Rock
Mechanics “Technology Roadmap for Rock
Mechanics”, Sandton (Gauteng-Johannesburg), South
Africa. For more information, contact Mrs Karen
Norman, The Conference Coordinator, Technology
Roadmap for Rock Mechanics, P.O. Box 61127, ZA-2107
Marshalltown, South Africa; Tel. +27.11.8341273 or
8341277; Fax: +27.11.833.8156 or 838.5923.
Sept. 24–25. CIM Field Conference: Ore Deposits at
Depth-Challenges and Opportunities, Timmins,
Ontario, Canada. For more information, contact Mr.
Damien J. Duff, Manager of Geology, Falconbridge
Limited, Timmins Region, P. O. Bag 2002, Timmins
Ontario, Canada, P4N 7K1; Tel.+705.267.8683; E-Mail:
duff@falconbridge.com.
Sept. 28–Oct. 3. Society of Exploration Geophysicists
(SExG) 73rd Annual Meeting and International
Exposition, Dallas, Texas, USA. For more information
contact, SExG Business Office, Tel. +1.918.497.5500;
Fax +1.918.497.5557; Website: www.seg.org.
Nov. 2–5. Geological Society of America Annual
Meeting, Seattle, Washington, USA. For information,
contact GSA Meetings Dept., P.O. Box 9140, Boulder, CO
80301-9140, USA; Tel. +1.303.447.2020; Fax
+1.303.447.1133; E-mail: meetings@geosociety.org;
Website: http://www.geosociety.org/meetings/index.htm.
Dec.1–5. Northwest Mining Association (NWMA)
109th Annual Meeting. For information, contact
NWMA, Tel. +1.509.624.1158; Fax +1.509.623.1241;
E-mail: nwma@nwma.org. 1
1 Officers
& Councilors
JANUARY 1, 2003 – DECEMBER 31, 2003
PRESIDENT
Jonathan G. Price
Nevada Bureau of Mines & Geology
University of Nevada - MS 178
Reno, NV 89557-0088
Tel: +1.775.784.6691 / Fax:
+1.775.784.1709
E-mail: jprice@unr.edu
EXECUTIVE DIRECTOR
Brian G. Hoal
7811 Shaffer Parkway
Littleton, CO 80127
Tel: (720) 981-7882 / Fax: (720) 981-7874
E-mail: director@segweb.org
TREASURER
George R. Ireland
7811 Shaffer Parkway
Littleton, CO 80127
Tel: (720) 981-7882 / Fax: (720) 981-7874
E-mail: treasurer@segweb.org
VICE PRESIDENT REGIONAL AFFAIRS
Noel C. White
P.O. Box 5181
Kenmore East
QLD 4069 Australia
Tel: +61.7.3878.3041 / Fax:
+61.7.3878.7099
E-mail: White.Noel@bigpond.com
REGIONAL VICE PRESIDENTS
David A. Giles, North America
Koh Naito, Asia
José A. Perelló, South America
G. Neil Phillips, Australasia
David T. Rickard, Europe
Laurence J. Robb, Africa
Andrei Tsvetkov, North Eurasia
COUNCILORS
Antonio Arribas R., Jr., USA
John H. Dilles, USA
Craig A. Feebrey, Japan
J. Bruce Gemmell, Australia
Richard J. Goldfarb, USA
David A. John, USA
Duncan E. Large, Germany
A. James Macdonald, Australia
Jeremy P. Richards, Canada
SEG FOUNDATION
(Effective January 1, 2003)
Richard L. Nielsen, President
Allan P. Juhas, Vice President
Donald M. Davidson, Jr., Secretary
George R. Ireland, Treasurer
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