东天山白鑫滩铜镍矿成矿特征及找矿启示  

Mineralization Characteristics of the Baixintan Copper-nickel Deposit in East Tianshan and Its Prospecting Enlightenment

作　　者：韩建华[1] 赵恒乐[1] 李鑫[1] 薛炯 彭宇 Han Jianhua;Zhao Hengle;Li Xin;Xue Jiong;Peng Yu(The First Regional Geological Survey Team,Bureau of Geology and Mineral Resources Development of Xinjiang,Urumqi,Xinjiang,830011,China)

机构地区：[1]新疆维吾尔自治区地质矿产勘查开发局第一区域地质调查大队,新疆乌鲁木齐830011

出　　处：《新疆地质》2022年第1期130-134,共5页Xinjiang Geology

摘　　要：哈密市白鑫滩铜镍矿位于东天山地区大草滩断裂北侧,该矿为东天山地区铜镍品位最高的矿床。成矿特征与区域上黄山一带铜镍矿存在明显差异。通过对该矿床成矿特征的全方位研究,发现矿床形成于后碰撞伸展环境,受呈高磁低重特征的基性-超基性无根杂岩体控制,呈铜高镍低,伴生钴、银的特征。该矿的评价及独有特征为沙垄以西铜镍矿的寻找提供了有利经验与借鉴,说明沙垄以西具备寻找与白鑫滩铜镍矿类似矿床的潜力。The Baixintan Cu-ni deposit is located on the north side of the Dachaotan fault in the East Tianshan area.It is the highest Cu+Ni grade deposit in the East Tianshan area.There are obvious differences between the metallogenic characteristics and the cu-ni deposits in the region of Huangshan.Through a comprehensive study on the metallogenic characteristics of the deposit,it is found that the deposit is controlled by a basic-ultrabasic rootless complex with high magnetism and low gravity,which was formed in a post--collisional extension environment,and is characterized by high copper,high nickel and low associated cobalt and silver.The successful evaluation of the deposit and its unique characteristics provide favorable experience and reference for the prospecting of copper-nickel deposits in the west of Shalong.It shows that there is potential to look for similar deposits to Baixintan copper-nickel deposit to the west of Sha-long.

关 键 词：东天山 基性-超基性杂岩体 成矿特征 铜镍矿 

分 类 号：P612[天文地球—矿床学] P588.124[天文地球—地质学]