Abstract The Virginia zone is one of several copper-gold mineralized zones in the Copper Mountain camp, located 15 kilometres south of Princeton, British Columbia. Reserves consist of 4.5 million tonnes grading 0.39 per cent copper (Tim Carew, personal communication, 1992) and approximately 0.17 gram gold and 1.49 grams silver per tonne (calculated from median Cu/Au and Cu/Ag ratios in samples within the deposit). This zone has special interest because it contains higher gold grades than other previously or currently mined zones in the camp and because it is in the initial stage of production. As a result, there is currently an opportunity to document the geology of this zone more fully, and to use this information to understand the genetic controls on copper and gold deposition.

Abstract The Pothook deposit is one of several alkalic porphyry copper-gold deposits (Afton, Crescent, Ajax East, Ajax West) developed in the Afton mining camp, located 10 kilometres west of Kamloops, British Columbia. These deposits are all hosted by the Iron Mask batholith, a large composite alkalic intrusion of earliest Jurassic age that intrudes latest Triassic Nicola volcanic rocks of the Quesnellia oceanic island arc terrain (Souther, 1992). The Pothook deposit is located on the southwestern edge of the Iron Mask batholith, approximately 750 metres southeast of the much larger Afton copper-gold deposit (Figure 1). It contained a geological reserve of 3.26 million tonnes grading 0.40% copper and 0.16 gram per tonne gold ($0.40 copper equivalent cut-off; Bond, 1985).