2000 Annual Report - Heron Resources Limited

2.0 Continued
Operations Review
2.9.2 Kurramia Project
Heron 100%.
Gold - nickel.
The 105km 2 project area covering 13 tenements is located 10-30km N of Kalgoorlie
associated with felsic volcaniclastics and lateritised ultramafics within the Boorara
Shear Zone. An extensive lacustrine cover associated with Gidgi Lake is present in
the northern project area.
Tenement applications are awaiting grant. Heron granted Tribute Rights to a
prospector syndicate, which has been exploring alluvial gold occurrences within the
southern project area. No bedrock gold targets have as yet been generated from
this work.
Kanowna South Prospect
Photo: Ian Buchhorn (Managing Director), Alan Rudd
(Senior Geologist), David Crook (Exploration Manager).
The tenement applications are located 3km S of Kanowna, some 20km NE of Kalgoorlie.
The area is dominantly volcaniclastic sediments. Importantly, the Shamrock Ultramafic Sequence trends N-S through the project area,
and is prospective for Silver Swan style nickel sulphide mineralisation. Intrusive porphyry, locally being a prime gold target, occurs
throughout the tenements. A southern extension of the Kanowna Shear Zone is also interpreted as transecting the western tenement
area, suggesting a Kanowna Belle target setting.
Previous RAB drilling includes intersections of up to 1m at 0.95g/t Au. Regional Aircore drilling and limited RC drilling produced up to
4m at 2.35g/t Au at the Phoenix Prospect. In view of the deep surface depletion zone, further drill testing is required.
The similarity of the geological setting to the nearby Kanowna Belle gold mine means that very detailed drill exploration is warranted at
the Kanowna South Prospect once the tenements are granted. Farm-in interest has been expressed.
Roaster Prospect
The tenement applications are located 15km N of Kalgoorlie associated with the Bardoc Tectonic Zone (northern extension of the
Boorara Shear Zone).
Sedimentary rocks of the Black Flag Group, interbedded with lesser mafic and porphyritic felsic rocks dominate the local geology. The
sediments consist of epiclastic siltstone and carbonaceous shale. Evidence of old gold workings from the late 1800s and early 1900s
exists. No record of production is available.
Previous exploration of the tenement area includes aeromagnetic interpretation, an airborne Electro-Magnetic survey, a broad spaced
gravity survey, geological and regolith mapping and interpretation, Auger sampling, several phases of follow up RAB drilling at the
Roaster and Penghana Prospects, RC drilling at the Roaster and Penghana Prospects and regional Aircore-RAB drilling traverses. The
geological setting is highly prospective for gold mineralisation. Heron’s main target is however nickel laterite associated with ultramafic
units interpreted during the course of previous gold exploration.
2.9.3 Mount Martin Project
Heron 100%.
Gold - nickel.
The 60km 2 project area covering 5 tenement applications is located 45km SE of Kalgoorlie, associated with the Boulder Lefroy Fault
System to the west, and main Boorara Shear Zone to the east. The applications are precisely located on favourable structural and
ultramafic targets in the area of the Blair nickel, Mount Martin gold-nickel and New Celebration-Jubilee gold mines.
Tenement acquisition has been on the basis of the Woolibar Fault, which is a southern splay extension of the intensely mineralised
Boorara Shear Zone. Alluvial gold production is widespread within and adjoining the Heron project area. From Heron’s initial geological
reconnaissance, gold-prospective zones appear to have a direct dolerite association.
Heron Resources NL Annual Report 2000 page 33