![]() ![]() | ![]() Aug 28, 2008 | |||
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WeajuThe Weaju prospect, situated some 30km to the east north east of KGL on the same shear system, has been the focus of intermittent mining activity, by small companies and artisanal workers, over the last 50 to 60 years. Mineralisation is concentrated in shear zones, along a contact zone between granite and schist-belt lithologies, into which quartz-tourmaline veins and pegmatites have been intruded. The distribution of existing workings shows that gold mineralisation is in axial plane shear zones to folds several hundred metres in amplitude. Sulphides (pyrite / arsenopyrite / galena / sphalerite) are observed in the strongly deformed ultramafic schists and quartz tourmaline veins. The mineralisation appears to form extensive anastomosing zones, following important shears and mineralised zones, which may extend throughout the length of the Bea Mountains. Eastwards, the mineralisation extends into the granitic terrain, in potassic quartz-tourmaline veins and pegmatites identical to the intrusions exposed at the King George - Larjor gold prospect. A soil geochemical grid and geological mapping demonstrated a strike length of 1.5 km in an ENE trend for the mineralisation, open to the east and west. Recent artisanal workings have confirmed the continuity of mineralisation through the previous area of workings and two initial diamond drillholes through this zone recorded values of (W1) 12m@40g/t and (W2) 12m@3.8 g/t.
To date, 400m of drilling have been completed at Weaju in a total of eight diamond drill holes. The drilling has confirmed the presence of a high-grade lens of gold mineralisation in sheared ultramafics trending at around 075° and dipping at 60° to 70° to the north. The lens has a total length of some 140 metres and gold occurs as free gold visible to the naked eye and associated with arsenopyrite. The style of gold mineralisation encountered is very similar to that at KGL.
INTERSECTIONS OF GREATER THAN 1g/t Au IN DRILL HOLES AT WEAJU (UNCUT)
Independent consultants A C A Howe International Limited estimate an uncut geological resource in the inferred category to a depth below surface of 100m of 662,508 tonnes at a 'bonanza' type grade of 10.9 grams per tonne, for a total estimated resource of 233,000 contained ounces of gold. Since - the calculation is based on only four intersections the resource has been classed in the inferred category using the AusIMM JORC code. Additional drilling would quickly upgrade this to an indicated resource.
Similar 'bonanza' type grades have been encountered in sampling of artisanal workings some 750m west of the zone drilled to date and results are awaited from a trenching and soil geochemistry survey aimed at defining further drill targets for the coming field season.
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