Windy boosts copper reserve but latest results disappoint

Having completed a 22-hole program on the MacLeod Lake property north of Chibougamau, Que., Windy Mountain Explorations (COATS) has increased its preliminary reserve estimate to 37.5 million tonnes grading 0.44% copper and 0.05% molybdenum. Despite encouraging results from the first half of the program, however, assays from the last nine holes were generally disappointing. Although all intersected sulphides, only the last hole contained copper- molybdenum mineralization of any significance.

Hole 57, drilled along the crest of interpreted fold structure north of the previous drilling, intersected 53 metres grading 0.43% copper and 0.054% molybdenum.

Reserves lie along the crest and limbs of a fold structure for a strike length of approximately 1,100 metres. The mineralization averages about 50 metres in width and has been traced downdip for about 150 metres on the southern limb and to 100 metres on the northern limb.

Although the zone appears to be thinning out to the north, it remains open along strike to the east and west, and downdip to the southeast, Windy Mountain says.

Windy will begin additional drilling at the beginning of 1991 to evaluate the eastern and western extensions of the main zone and the down-plunge extent to the northeast.