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引言加尔彭山(Garpenberg)矿床位于瑞典中部成矿省,以赋存于早元古代长英质变火山岩和变沉积岩(长英麻粒岩建造)的外壳岩层序中的层控氧化铁矿床和硫化物(Zn-Pb-Cu)矿床为特征。该层序被花岗岩类所侵入,并已褶皱,变质成角闪岩相。加尔彭山地区的含矿长英麻粒岩建造呈北东走向延伸的带,长约15km,宽7km,四周被花岗岩类环绕。分布有加尔彭山矿山和加尔彭山北矿山以及达姆斯乔矿体,一起组成4km长的硫化物矿化层。此外,该区还有氧化铁矿床。加尔彭山矿床是瑞典中部最老的矿山之一,早在十三世纪就已开采铜矿,现年产含zn 5％、Pb 4％、Cu 0.4％、Ag 130克/吨、Au 0.9克/吨的矿石约220,000吨。
Introduction The Garpenberg deposit is located in the central part of Sweden’s mineralization province to host stratigraphic iron oxide deposits and sulphide in the crust sequence of the Early Proterozoic metamorphosed volcanic rocks and metamorphic sediments (amphibolite-hosted) (Zn-Pb-Cu) deposit is characterized. The sequence is invaded by granitoids and has been folded to degenerate into amphibolite facies. The ore-bearing long-legged granulite in the Gallpen region is a belt that extends northeastward and is about 15 km long and 7 km wide surrounded by granite. Distribution of the Galpin Hill mine and the Northern Gallup Mountain Mine and Damos Qiao ore body together to form a 4km long sulfide mineralization. In addition, there are iron oxide deposits in the area. The Galpin Mountain deposit, one of the oldest mines in central Sweden, has been exploited since the thirteenth century, with annual production of 5% Zn, 4% Pb, 0.4% Cu, 130 g / t Ag, 0.9 g / About 220,000 tons of ore.