![]() ![]() | ![]() Aug 28, 2008 | |||
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GondojaThe Gondoja Hills area, 10km north east of Weaju, is historically one of the most productive gold districts in western Liberia. In the north-east of the area, 2.5 kilometres from the village of Gondoja, Sam Davis Creek placer workings target fragments of large quartz veins which also contain base metal sulphides. USGS geologists, seconded to Liberia to assist exploration in the period 1949-1950, reported that the veins outcropped above the creek and the superficial deposits around the outcrop had been worked extensively along a strike of about 500 metres. Attempts had been made to mine the veins, which trend north-east, parallel to the foliation of the country rocks, by means of an adit and shafts into the outcrop. Preussag conducted limited geochemical investigations of the Sam Davis Creek occurrence in 1976, purely for base metals. Auger sampling and geological observations led the Preussag geologist to conclude that the mineralisation was associated with a small ultramafic intrusive. The distribution of similar, larger bodies in the general area indicate the presence of a series of en-echelon schist belt remnants, with potential for hosting significant base metal deposits as well as gold. Soil sampling in the vicinity of the sulphide mineralisation returned values of 2,500 ppm Ni, 2,500 ppm Pb, 600 ppm Cu, 125 ppm Co and 1,000 ppm Zn; a visual estimate of the strongest sulphide mineralisation suggested 1-2% combined Cu, Pb and Zn. The gold and sulphide mineralisation is hosted within a strong shear structure approximately 50m wide, associated with a suite of talc schists and intrusive potassic tourmaline-bearing granitic dykes. The exposure in the largest of the artisanal pits has yielded a value of 6m @10.1 g/t. Soil geochemistry has demonstrated a coincident anomaly over a strike length of 500 metres with a 350 metre x 50 metre central zone returning value sin excess of 1000 ppb Au. A total of five diamond drill holes have now been completed at Gondoja,. Hole GD-4, which returned the best intersection of 30m @ 3.9 g/t gold, was drilled at minus 75 degrees beneath the main artisanal pit. The higher grade sub-section in hole GD-4, i.e. 12m @ 7.0 g/t gold, compares well with the 6m @ 10.1 g/t obtained from a channel sample in artisanal surface workings. The zone is open to the west and at depth.
Follow up work will involve extending the soil geochemical grid and additional trenching, prior to further drilling.
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