摘要
皖南麻姑山铜钼矿床成因初探卞育才（江苏省苏州市吴县铜矿，吴县，２１５１５１）关键词：铜矿，钼矿，矽长岩，成因，安徽南部。ＯｎｔｈｅＯｒｉｇｉｎｏｆＭａｇｕｓｈａｎＣｕ－ＭｏＤｅｐｏｓｉｔｉｎＳｏｕｔｈｅｒｎＡｎｈｕｉ￥ＢｉａｎＹｕｃａｉＡｂｓｔｒａｃ...
The deposit is borne in the Permian and Carbonate limestones contacted with granodiorite.The host rocks both of roof and bottom remains no anomaly with regard to the crustal average contents of Cu, Mo.However,the unaltered granodiorite contains about 2 times of Cu, Mo of common one. The metallic minerals have two mineralization stages, i. e. hydrothermal and hypergenic stages. In hydrothermal stage, there are oxidation step, sulfide step and quartz-calcite step.In hypergenic stage, magnetite and hemattite are generated. There are lots of skarn minerals in the veins. Therefore,the deposit belongs to skarn type deposit. Moreover,the deposit is controlled by tectonic feature, magmatic rock and host rock.Most of the oreboies is borne in the contact zoue of magmatic rock.The shape of contact zone is of paramount importance for the forming of the deposit and controls the strength of mineralization and scope of orebodies etc.
出处
《江苏地质》
1995年第1期17-20,共4页
Jiangsu Geology
