班公湖—怒江成矿带嘎拉勒铜金矿床发现罕见铋矿物  

Rare Bismuth Minerals in the Galale Copper and Gold Deposit of the Bangong Co-Nujiang Metallogenic Belt

作　　者：王强[1] 孙燕[1] 李志军[1] 徐超[1] 王瑜亮[1] 何建娟[1] 郭显忠[1] 

机构地区：[1]成都理工大学地球科学学院,成都610059

出　　处：《矿物岩石地球化学通报》2013年第3期343-348,共6页Bulletin of Mineralogy, Petrology and Geochemistry

基　　金：国家公益性行业科研专项资助项目(201011013-3);矿物学岩石学矿床学国家重点(培育)学科建设项目(SZD0407)

摘　　要：班公湖—怒江成矿带是西藏重要的铜多金属成矿带。嘎拉勒铜金矿床是该成矿带中重要且具代表性的矽卡岩型铜金矿床。由于发现晚、研究程度较低,矿石成分研究目前还是空白。作者通过野外地质调查与采样,采用光学显微镜鉴定、扫描电镜观察和X射线能谱仪测试分析等手段,对矿石物质组分做了详细的研究。首次在矿石中发现了大量自然铋及国内外未曾有报道的铋锝金属互化物、硫硒铋化物CuBi(Se,S)、碲硒铋化物Bi2SeTe等罕见铋矿物。铋锝金属互化物是首次在矽卡岩型矿床中被发现,填补了该矿床研究的空白,丰富了成矿带内铋矿物种类。对矿床研究、勘查模式及找矿方向的确定有着重要的指示意义。The Bangong Co-Nujiang Metallogenic Belt is an important copper polymetallic belt in Tibet. The Galale copper and gold deposit is an important and representative skarn copper and gold deposit in this Metallogenic Belt. The ore material components were systematically studied by field sampling, microscopic observation, SEM observa- tion and x-ray energy spectrum analyses. A mass of native bismuth and some new found Bi-Tc intermetallics, sulfur selenium bismuth iodide CuBi （Se, S）, tellurium selenium bismuth iodide Biz SeTe （unnamed） are found in Ores. The Bi-Tc intermetallics are firstly found in skarn deposits, enriching bismuth mineral types of the Bangong Co-Nujiang Metallogenic Belt, and have important indicative significance in deposit researches and confirming exploration model and direction.

关 键 词：铋矿物 锝 放射性 嘎拉勒 班公湖-怒江成矿带 

分 类 号：P618.51[天文地球—矿床学] P618.41[天文地球—地质学]