西昆仑卡拉牙斯卡克Pb--Zn--Cu多金属矿床控矿构造及成矿模式  

Ore-controlling structure and metallogenic model of Kalayasikake Pb-Zn-Cu polymetallic deposit in West Kunlun

作　　者：于换涛[1,2] 刘继顺[1,2] 刘文恒[1,2] 王天国[1,2] 李曦[1,2] 

机构地区：[1]中南大学有色金属成矿预测教育部重点实验室,长沙410083 [2]中南大学地球科学与信息物理学院,长沙410083

出　　处：《世界地质》2013年第4期733-739,746,共8页World Geology

摘　　要：运用地质与地球化学方法,对西昆仑卡拉牙斯卡克矿区控矿构造及成矿模式进行了研究。矿床地球化学测试δ34S为-5.3‰^-32.6‰,206Pb/204Pb为17.712~18.082,207Pb/204Pb为15.358~15.664,208Pb/204Pb为37.513~38.399。分析显示,泥盆—石炭纪时期深部成矿物质在构造或其他动力的作用下沿区域深大断裂上涌至地表,与碎屑物质共同沉淀形成矿源层。后经主要成分为天水的流体萃取,形成含矿热液,然后在矿区构造系统中运移、富集成矿—即区域构造控制矿源层形成。矿区内低角度逆掩断层(导矿构造)和高角度逆冲断层及其派生的次级节理裂隙(容矿构造)控制矿体的形成。The authors studied the ore-controlling structure and metallogenic model of Kalayasikake of West Kunlun using geological and geochemical methods. Research on deposit geochemistry found ^δ34S as -5. 3‰-32.6‰,^206Pb/204pb as 17.712 - 18. 082,^207Tpb/^204pb was 15. 358 - 15.664 and ^208spb/^204 npb as 37.513 -38. 399 in contents. The research showed that deep-metallogenic materials upwelled to surface along with the deep faults as to tectonic force or others during Devonian-Carboniferous, and deposited with detrital materials to form source beds. After that, the hydrotherm formed by the extraction with atmospheric rainwater, and then transported and concentrated, that was the formation of ore source bed. The mild-overthrust fault （transmitting ore structure ） and the steep-thrust fault including the joint-fissure came from it （ ore-hosting structures） in the mining area controlled the formation of ore body.

关 键 词：西昆仑 卡拉牙斯卡克 控矿构造 成矿模式 

分 类 号：P618.4[天文地球—矿床学] P612[天文地球—地质学]