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1概况金川镍铜(铂)硫化物矿床位于龙首山隆起带内,含矿超镁铁质岩体基岩出露面积仅1.34km2,矿化率高达47.8%(汤中立等,2006)。其中镍金属储量大于550万t,铜金属储量大于350万t,伴生金、银、铂族贵金属及硒、碲等分散元素。富矿体主要集中在Ⅰ、Ⅱ矿区,矿石平均品位:Ni:1.06%,Cu:0.8%,Co:0.03%,PGE:0.66×10-6;矿石类型以海绵陨铁状和浸染状矿石为主,块状矿石仅在Ⅰ矿区中部及Ⅱ矿区东部零星
1 Overview The Jinchuan nickel-copper (platinum) sulphide deposit is located in the Longshanshan Uplift. The bedrock area of the ore-bearing ultramafic rocks is only 1.34km2 with a mineralization rate of 47.8% (Tang et al., 2006). Nickel metal reserves of more than 5.5 million t, copper metal reserves of more than 3.5 million t, associated with gold, silver, platinum group precious metals and selenium, tellurium and other dispersing elements. The ore bodies are mainly concentrated in mining areas Ⅰ and Ⅱ. The average grade of ore is 1.06% for Ni, 0.8% for Cu, 0.03% for Co and 0.66 × 10-6 for PGE. The ore types are sponge meteorite and disseminated ore The main and massive ores are sporadic only in the middle part of Ⅰ mine and the east of Ⅱ mine