
Regional Exploration
Westonia Mines holds tenements covering more than 800km² of the Westonia Greenstone Belt. Most of these land holdings are either fully owned by the Company or options to purchase exist. The company’s objective is to aggressively apply innovative, but cost effective methods of exploration to discover new projects, thereby enabling the corporation to expand beyond its initial open pit gold mine(s) at Westonia. The company is developing a comprehensive geological model for its entire tenement holding, which represents the majority of the Westonia Greenstone Belt, to ensure that expenditure on drill testing reflects the appropriate order of priorities.
Westonia’s tenements are prospective for gold, nickel and base metals, but the belt is under-explored.
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Westonia Belt Magnetics and Targets |
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Aeromagnetics Survey Area |
The Westonia Greenstone Belt contains one mine only of substantial size, that being the Westonia Gold Mine which has produced a total of 630,000 ozs of gold. In the event that the Westonia Greenstone Belt is as similarly gold-endowed as the Southern Cross Greenstone Belt, there is substantial scope for new discoveries on Westonia’s land position, albeit in part under cover – hence undiscovered to date.
A detailed aeromagnetic survey covering the more immediate area North-West and South-East of Westonia was undertaken in 2006 to target repeats of the Edna May Gneiss. The Edna May Gneiss is the host rock to the gold mineralisation at the Edna May mine. Reconstruction of the Edna May Gneiss unit from surface to 200 metres depth (by adding historical production to the proposed new pit) reveals an exploration model of 20 million tonnes of ore at a grade of 2.0 g/t Au, which would contain 1.1 – 1.2 million ounces of recovered gold.
The 2006 survey identified up to 6 potential Edna May repeat targets within 8 kilometres to the South-East of Westonia, based upon a similar magnetic signature to the Edna May Gneiss. The targets have been analysed and assessed in conjunction with historical exploration data and then ranked in order of exploration priority. The highest ranked targets will be drilled tested in 2007.
Given the success in identifying apparently obvious drill targets from the 2006 survey, a larger aeromagnetic survey was carried out in March 2007. New exploration targets are expected from this work. The expected new targets will be compared with the 2006 targets and ranked accordingly in a holistic sense so that the Company’s drilling activities are focused on the very highest priority targets.
A ground based Induced Polarisation (IP) survey was undertaken over the Anomaly 47 (located in the NW corner of our tenements) base metals prospect in March 2007. This survey follows encouraging base and precious metals results as reported in the Company’s December 2006 Quarterly Report. The purpose of the IP survey is to test for disseminated and massive sulphide mineralisation. In the event that the IP survey is
positive in this respect, RC drill testing will occur in the June 2007 quarter.


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