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银山矿区黄铁矿有七个世代,其中与矿化密切的为3~6世代,随着矿化的演化,黄铁矿中硫相对减少,砷相对增高。银山黄铁矿微量元素以高As、Te,低Se、Co、Ni,且Se/Te<1,Co/Ni<1为特征,黄铁矿的稀土元素配分型式与矿区火山岩-次火山岩相一致,ΣCe/ΣY>1,无明显的铕异常,黄铁矿δ34S‰为3.9,离差较小,对成矿的物质来源有指示作用。银山矿区黄铁矿的微量元素与德兴斑岩铜矿床的黄铁矿微量元素差别较大,反映出这两个矿床的差异性。
There are seven generations of pyrite in Yinshan mining area, of which 3 to 6 generations are closely related to mineralization. With the evolution of mineralization, the relative reduction of sulfur in pyrite and the relative increase of arsenic occur. The trace elements of Yinshan pyrite are characterized by high As, Te, low Se, Co, Ni, and Se / Te <1 and Co / Ni <1. The REE patterns of pyrite and the volcanic-subvolcanic facies , ΣCe / ΣY> 1, no obvious europium anomaly, and the δ34S ‰ of pyrite is 3.9 with small dispersion, indicating the source of ore-forming materials. The trace elements of pyrite in Yinshan ore district and the trace elements of pyrite in Dexing porphyry copper deposit are quite different, which reflects the difference between these two deposits.