2000 Annual Report - Heron Resources Limited

Operations Review
2.0 Continued
2.4.6 Karonie South Joint Venture Project
Heron 100%. WMC Resources Limited right to earn 80% through spending $0.30m.
Gold (- nickel).
The 666km 2 contiguous project area covering 9 tenements is located 140-170km SE of Kalgoorlie associated with
the southern Keith Kilkenny Tectonic Zone. This structure hosts gold mineralisation from French Kiss and Karonie in
the south through to Carasue and Old Plough Dam in the north.
Heron’s aeromagnetic data for Karonie South confirms the presence of prospective Karonie gold mine structures
(northeast splay faults and tight isoclinal folds), within a favourable mafic stratigraphy. Importantly the Aldiss Fault,
which controls the distribution of mineralisation within the Karonie gold mining centre, extends into the Heron project
area. Aeromagnetic interpretation has defined several major regional NE trending cross structures.
Following commencement of the Joint Venture, WMC has
completed a detailed 474 station, 1x1km grid gravity
survey. This has provided excellent definition of the mafic
and sedimentary packages of the Roe Hills and Karonie
Greenstone Belts. The data has been processed to
produce Bouger gravity images.
E28/860
6530000mN
The data reveals a low intensity gravity unit in the western
survey area, which represents the Archaean Mount
Belches sedimentary formation. To the east of this is a
major NNW trending gravity high that represents the mafic
to ultramafic Roe Hills Greenstone Belt, with other eastparallel
gravity highs interpreted as thrust repetitions of the
Karonie Greenstone Belt, intercalated with sediments. The
NNW trending gravity-high stratigraphy is cut by numerous
NE trending structures interpreted as Lower Proterozoic
aged Albany-Fraser deformation effects.
Granites located in the northeast and the south of the
survey area are represented as gravity lows, and a
distinctive ENE Proterozoic dyke is a linear gravity high.
Both of these features are favourable gold targets.
E28/862
E28/929
E28/861
6520000mN
E28/665
E28/1014
6510000mN
An ethnographic survey was completed, clearing the entire
Joint Venture area in terms of ethnographic sites.
The survey team consisted of registered claimants of the
Narnoonbinya People.
An orientation soil geochemical program has been
completed, and RAB drilling is current to determine the
regolith and geological profile. WMC expenditure to date is
$0.1 million.
E28/638
6500000mN
A further 691km 2 project area covering 4 tenement
applications is currently subject to farm-out discussions.
The target is the southern soil-covered extension of the
Karonie Greenstone Belt into the Fraser Range area.
470000mE
400000mE
6490000mN
Figure 9- KARONIE SOUTH
Bouger Gravity Image
Photo Strip: The concrete plug next to the peg is used to cap the drill hole. After site rehabilitation, only the black PVC
tube protrudes from the ground, as a marker of the hole’s position. When mining is ready to commence, the plugs will be
removed, since the enclosing top-soil is used for rehabilitation works around the minesite.
‘My Painting’ Kevin Banks “The left hand side is the country. It has many quondong trees in it.
On the right hand side is the mine site with its spiral ramp into the earth.”
page 26
Heron Resources NL
Annual Report 2000