新疆萨热克铜矿——与盆地卤水作用有关的大型矿床  

The geologic characteristics of sareke copper deposit,Xinjiang,China——ore genesis related to basin brines

作　　者：祝新友[1,2] 王京彬[1,2] 王玉杰[3] 刘增仁 方同辉[1,5] 王艳莉 

机构地区：[1]北京矿产地质研究院,北京100012 [2]有色金属矿产地质调查中心,北京100012 [3]中国冶金地质总局山东正元地质勘查院,济南250101 [4]新疆鑫汇矿业有限责任公司,乌鲁木齐830000 [5]中色地科股份有限公司,北京100012

出　　处：《矿产勘查》2011年第1期28-35,共8页Mineral Exploration

基　　金：有色金属矿产地质调查中心科研项目(编号:2004ZHXM002);国家支撑项目(编号:2006BAB07B04)资助

摘　　要：新疆萨热克铜矿位于塔里木盆地西南缘贱金属成矿带,是近年来新疆铜矿找矿的重大进展。矿床产于上侏罗统陆相紫红色砾岩层中,受层间断裂系统的控制,矿区内穿插少量辉绿岩脉。矿体及两侧发育广泛的褪色蚀变,主要金属矿物为辉铜矿,少量黄铁矿、黄铜矿、蓝铜矿等,脉石矿物为方解石。金属矿物主要分布于胶结物中,部分浸染状分布于碎裂的砾石裂隙中。萨热克铜矿属于后生低温热液矿床,成矿作用与区域性的盆地卤水作用有关,地质特征可与砂(砾)岩型铜矿类比,成矿过程中发生顺层断裂活动,岩石碎裂,并可能有深源物质的加入。萨热克铜矿与塔西南地区砂砾岩型铅锌矿、砂岩铜矿的成矿具有一致性,它们是喜山期盆地卤水多期活动的产物。Discovering Sareke copper deposit, located in Taxinan basin base metal belt （ southeastern margin of Tarim basin） , Wuchia County, Xinjiang, is the most important progress in exploring copper deposit in Xinjing. The orebodies of deposit is hosted in upper Jurassic red continental conglomerate, and controlled by the interlayer fault system, with the fade and few carbonate alteration on both sides of orebodies. A little diabase dikes occurs in the mine area. The ore minerals including mainly chaeoeite, minor pyrite, ehalcopyrite and azurite, mainly occurred in the cement of the rock, and some disseminated in fracture of the fractured gravel. The gangue mineral is ca/cite. The deposit is epigenetic and related to the basin brines, with similar geological characteristics to the sand- stone type copper deposit. The interlayer fault formed during the mineralization, which resulted in the fracture of the gravel and some metals coming from the deep. In genesis, Sareke copper deposit is associated with the lead - zinc deposits hosted in sandstone or carbonate rocks, and sandstone type copper deposits, and all are results from the Cenozoic basic brines.

关 键 词：新疆萨热克铜矿盆地卤水砂岩型矿床 

分 类 号：P624[天文地球—地质矿产勘探] P617[天文地球—地质学]