东天山色尔特能豆荚状铬铁矿的发现及意义  

Discovery of the Podiform Chromitite Deposit in Seerteneng,in Eastern Tianshan,Xinjiang

作　　者：王成 李兴俭 刘超 李大海 Wang Cheng;Li Xingjian;Liu Chao;Li Dahai(Xinjiang Geological Survey Academy,Urumqi,Xinjiang,830000,China;Xinjiang Institute of Geology and Mineral resources,Urumqi,Xinjiang,830000,China)

机构地区：[1]新疆维吾尔自治区地质调查院,新疆乌鲁木齐830000 [2]新疆维吾尔自治区地质矿产研究所,新疆乌鲁木齐830000

出　　处：《新疆地质》2023年第4期558-561,共4页Xinjiang Geology

基　　金：新疆地质矿产勘查开发局地质调查项目(XGMB202039)。

摘　　要：色尔特能镁铁质-超镁铁质岩位于东天山小热泉子构造带和觉罗塔格构造带结合部位,由纯橄岩-辉橄岩-辉石岩和辉长岩组成。2020年发现一条铬铁矿体,长2 m,宽1 m,走向110°,豆荚状,Cr_(2)O_(3)品位40.71%。通过野外地质特征分析与成矿理论研究,认为其属蛇绿岩型豆荚状铬铁矿。该类型矿产的发现在康古尔断裂带一带尚属首次,表明色尔特能镁铁质-超镁铁质岩为蛇绿岩,非基性-超基性侵入岩。证明东天山康南-东恰特尕力-色尔特能蛇绿岩带的存在,大大拓展了东天山铬铁矿勘查潜力,具有重要理论和现实意义。Seerteneng mafic-ultramafic rocks located in the binding sites of Xiaorequanzi tectonic belt and Jueluotage tectonic belt has the composition of dunite,pyroxene peridotite,pyroxenite and gabbro.An chromitite orebody with the length of 3 meters,width of 1 meter and the trend of 110°was discoveried in 2020,whose Cr2O3 content was about 40.71%,and classified into the chromitite podiform deposit correlating with ophiolites.It was firstly discovered in Seerteneng,also in Kanggur fault zone and indicates that Seerteneng mafic-ultramafic rocks belong to ophiolite,not intrusive rocks,showes the existence of ophiolite belt from Kangur-Seerteneng and great exploration potential of chromite in eastern Tianshan,and takes an hughly important role to practical mineral exploration and geological theoretical research.

关 键 词：东天山 色尔特能 镁铁质-超镁铁质岩 豆荚状铬铁矿 蛇绿岩 

分 类 号：P618.33[天文地球—矿床学] P618.31[天文地球—地质学]