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在智利北部不毛之地阿塔卡马沙漠、海拔3050米的埃斯康迪达铜矿是最新投产的大型铜矿山,属智利埃斯康迪达矿业有限公司。它于1990年最后一天运出了第一批铜精矿,比原计划投产时间提前了7个月。该矿床经两年的地质绘图、取样、分析及钻探后尚未披露铜的储量。80年代初期美国一个地质队曾断定这个象月球表面景观的地区有6亿吨铜。埃斯康迪达矿床长3000米,宽1000米,矿石平均品位为2.5％,有
In the desert of Atacama in northern Chile, the Escondida copper mine at 3050 meters above sea level is the latest large-scale copper mine to be built and is owned by Chile’s Consolidida Mining Company Limited. It shipped the first batch of copper concentrate on the last day of 1990, seven months earlier than planned. After two years of geological mapping of this deposit, copper reserves have not yet been disclosed after sampling, analysis and drilling. In the early 1980s, a US geologic team had determined that there were 600 million tons of copper in the area like the lunar surface landscape. Escondida deposit 3,000 meters long, 1,000 meters wide, the average grade of 2.5% ore, there