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柴达木盆地南缘祁漫塔格—鄂拉山地区斑岩-矽卡岩矿床地质
引用本文:吴健辉,丰成友,张德全,李进文,佘宏全.柴达木盆地南缘祁漫塔格—鄂拉山地区斑岩-矽卡岩矿床地质[J].矿床地质,2010,29(5):760-774.
作者姓名:吴健辉  丰成友  张德全  李进文  佘宏全
作者单位:1. 湖北国土资源职业学院,湖北,荆州,434000
2. 中国地质科学院矿产资源研究所,北京,100037
基金项目:本文得到中央级公益性科研院所基本科研业务费专项资金项目(编号:K0901)、“十一五”国家科技支撑计划课题(编号:2006BAB01A06)和国土资源部百名优秀青年科技人才计划的联合资助
摘    要:柴达木盆地南缘祁漫塔格-鄂拉山地区发育斑岩-矽卡岩型铜多金属矿床,成矿主元素为Cu、Mo、Pb、Zn,大部分矿床伴生Au、Ag。斑岩型和矽卡岩型矿(化)体共生于同一个矿区之中,是这类矿床的一个重要特点。与成矿有关的侵入体是印支期的中酸性小岩体,它们具有浅成_超浅成和高侵位等特点。斑岩-矽卡岩矿床的成岩年龄和成矿年龄一致,形成于中三叠世至晚三叠世。它们是东昆仑造山带晚碰撞造山阶段壳-幔作用(幔源岩浆底侵-岩浆混合)的产物,与东昆仑地区这一时期的矽卡岩型铁多金属矿床、热液脉状多金属矿床,以及造山型金矿床共同构成了一个矿床成矿系列。

关 键 词:地质学  斑岩矿床  矽卡岩矿床  柴达木盆地南缘

Geology of porphyry and skarn type copper polymetallic deposits in southern margin of Qaidam Basin
WU JianHui,FENG ChengYou,ZHANG DeQuan,LI JinWen,SHE HongQuan.Geology of porphyry and skarn type copper polymetallic deposits in southern margin of Qaidam Basin[J].Mineral Deposits,2010,29(5):760-774.
Authors:WU JianHui  FENG ChengYou  ZHANG DeQuan  LI JinWen  SHE HongQuan
Institution:WU JianHui1,FENG ChengYou2,ZHANG DeQuan2,LI JinWen2 and SHE HongQuan2(1 Hubei Geosciences Professional College,Jingzhou 434000,Hubei,China,2 Institute of Mineral Resources,Chinese Academy of Geological Sciences,Beijing 100037,China)
Abstract:Copper polymetallic deposits of porphyry and skarn type are well developed in southern margin of the Qaidam Basin, whose ore-forming elements are mostly copper, molybdenum, lead and zinc with accompanying elements of gold and silver. A prominent feature of such ore deposits is that mineralizations of porphyry type and skarn type coexist in the same ore deposit. Intrusive rocks related to mineralization are Indosinian intermediate-acid small intrusive bodies assuming hypabyssal and high-level emplacement features. Rock-forming and ore-forming ages of these deposits are consistent, being Middle to Late Triassic. They were formed under the crust-mantle interaction during the late collision of East Kunlun orogeny, forming a metallogenic series with skarn-type iron polymetallic deposits and hydrothermal veinlike polymetallic deposits and orogenic gold deposits of this stage.
Keywords:geology  porphyry deposit  skarn deposit  southern margin of the Qaidam Basin
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