The Bauloora prospects are situated in a 27km2 epithermal alteration zone with excellent porphyry Cu/Au potential, that encompass the following prospects:
Historic Bauloora Mine
The Bauloora East Prospect
The Gravel Scrapes Prospect
Panorama (“Breccia-Sinter”) Prospect
Expert interpretation of structural and geophysical featurs has been completed and target areas for epithermal precious metal “feeder” zones and porphyry base metal deposits have been identified.
Geological reconnaissance and geochemical survey field work of these areas is pending. Once finalised drilling targets will be established.
<See Figure 1: 1st VD Magnetic image
EL 8343 lies within of the Tumut Synclinorial Zone of the Lachlan Fold Belt. The zone consists of a north-south aligned rift basin which developed in the early Palaeozoic. During the late Silurian/ early Devonian Bowning/Bindi Orogeny, numerous large granitic bodies intruded the Lachlan Fold Belt These were then in-filled with shallow marine sediments and submarine to subaerial, dominantly felsic, volcanics (Suppel and Schreibner-1990). These rocks are exposed in the licence area and its surroundings.
An Exploration License has been applied for which surrounds an interpreted 27 km2 hydrothermal alteration zone, situated in the Bogan Gate Synclinorial Zone, near Cootamundra. The area is host to the historic Bauloora mine and also several uneconomic auriferous epithermal vein systems, which have been historically drill tested by several companies.
It is Bushman Resources intention to intensively explore the area for economic Epithermal Au-Ag-Cu-Zn deposits and Porphyry style Cu-Au deposits by utilising the most advanced exploration technology and expert analysis in an attempt to identify “feeder” systems for the identified deposits to date.
There has been extensive historic geochemical surveys completed on various prospects in the past and these surveys will be utilised in conjunction with the various geophysical data sets and interpretation to identify future drilling targets.
No company geophysical surveys have been undertaken over this area, however expert interpretation of the government geophysical surveys has been completed. This data has been analysed in conjunction with major geological structural features, the result of which has identified two target areas that have a high potential of hosting bonanza epithermal deposits and/or porphyry deposits.
<See Figure 2: Bauloora Structural Interpretation
Expert interpretation of geophysics and geological structure has identified two target areas at Bauloora that have previously not been explored.
The Bauloora Mine is a narrow but strike-extensive breccia vein within the Frampton Volcanics. Historic mining focused on an ore body 200m long, 0.3-2.5m wide and 60m deep with grades of 3-18% Pb, 12-49g/t Ag, 2-8g/t Au, 1-3.5% Cu, 2-11% Zn, with a total production or 4000 tonnes.
The Bauloora East Prospect is a number of old shafts excavated in to the Deep Gully Creek Conglomerate Member, where veinlet and breccia-hosted calcite-galena-sphalerite- barite mineralisation, with silver and gold values, and sericite alteration of the country rock, has been prospected. Four percussion/diamond holes have been drilled at this prospect, which appears to be genetically related to the large hydrothermal alteration system to the west.
The Gravel Scrapes Prospect is a large area of smectite/sericite alteration of the Yeo Yeo Rhyodacite, with widespread patchy epithermal quartz and calcite veining and disseminations giving sporadic gold and base metal values. Five shallow percussion holes gave a best intersection of 3 metres at 0.81g/t gold.
At Mee Mar, gold and silver values have been obtained from a silica vein in altered volcaniclastics. Further investigation is warranted.
At the Panorama (“Breccia-Sinter”) Prospect, a number of large, brecciated chalcedony/quartz bodies outcrop boldly in paddocks near the eastern crown of the range of hills which broadly outline the large Bauloora zone of hydrothermal alteration. Extensive exploration work has been carried out here, but only shallow percussion drilling, which gave up to 2 metres at 2 g/t gold. Deeper drilling to test for possible feeder structures, which may host bonanza base and precious metals mineralisation, is warranted.
At the Tara Prospect, strongly anomalous lead and zinc values have been obtained from an acid dyke (Moeskops, 2013).