Drilling by
The junior drilled five holes into various geophysical anomalies at the head of a well-defined indicator mineral dispersion train. Three of the holes met only granite; however, hole 9 intercepted a 5.1-metre-thick intermixed horizon of kimberlite and granite at a down-hole depth of 8 metres. The hole, which comprises 55% granite and 45% kimberlite, penetrated just 3.5 metres of overburden.
Hole 10, collared roughly 250 metres away from hole 9, cut a thin 12-cm intercept of kimberlite at a down-hole depth of 78 metres (56 metres true depth). All five holes were drilled at an angle of minus 45.
Majescor is unsure whether the kimberlite intercept in hole 9 represents a dyke, sill or pipe feature. The company may have cut the edge of a pipe, and is targeting the immediate area with additional ground geophysics before drilling at least two follow-up holes. Hole 9 was spotted exactly at the head of the dispersion train that yielded mineral counts of up to 12,000 grains per sample and contained two known sites of kimberlite float. In the meantime, two targets on a nearby lake will be tested before Majescor returns to follow up on hole 9.
Further details on the Wemindji drilling will be available by April. Upwards of 15 holes are planned in total.
The diamond division of
Following the completion of an 8,500-line-km high-resolution airborne geophysical survey last year, BHP selected some 30 targets for further ground investigations, including further till sampling and geophysics. A first pass of drilling will test anywhere between 10 and 20 of these targets.
BHP Billiton Diamonds can earn a 56% interest in the property from
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