甘肃白山堂铜-铅矿床地质特征及成因分析

白山堂铜-铅矿床是内蒙古-甘肃-新疆相邻(北山)地区规模较大的铜多金属矿床之一,本文通过对该矿床地质特征、热液蚀变特征,成矿物质来源、成矿作用的研究分析,说明了矿床与次火山岩体-流纹斑岩体及期后热液关系密切,成矿热液与次火山岩体同源,均来自地壳深部,成矿晚于围岩,矿床在成因上,属与海西中-晚期的中酸性火山岩有关的高中温热液铜-铅矿床。

Copper-Lead Mine Bed Geological Characteristics and Causes of Gansu Baishantang

Cu-Pb deposit Baishan Church are in Inner Mongolia-Gansu-Xinjiang adjacent（Beishan） larger areas of copper-polymetallic deposit,one of this paper the characteristics of the geology of mineral deposits,hydrothermal alteration features,material sources,into mine the role of research and analysis shows that deposits with the Hercynian Medium-late subvolcanics-the rhyolite porphyry and hydrothermal period close to the preliminary view that the deposits in the causes,the mineralizing fluid,and sub-volcanic rocks autologous,all from the deep crust,forming later than the surrounding rock,which is with the Hercynian acidic volcanic rocks of the high school on the hot liquid copper-lead deposits.