夺尔贡玛金锑矿矿床地质特征及成因浅析  

Geological characteristics and genetic analysis of the Duoergong Ma gold antimony deposit

作　　者：孟振文 王宗保 蒋耀强 孟庆录 杨鸿魁 MENG Zhen-wen;WANG Zong-bao;JIANG Yao-qiang;MENG Qing-lu;YANG Hong-kui(Xining Natural R esources Investigation Center,China Geological Survey,Qinghai Xining 810000,China)

机构地区：[1]中国地质调查局西宁自然资源综合调查中心,青海西宁810000

出　　处：《世界有色金属》2024年第14期64-67,共4页World Nonferrous Metals

基　　金：中国地质调查局项目(编号:DD20220978)。

摘　　要：夺尔贡玛金锑矿位于青海省巴颜喀拉山北缘金锑成矿带内,目前已发现金、锑、汞、砷等矿产。为了进一步明确找矿方向,笔者通过开展地质矿产调查工作,结合区内地质找矿工作成果,在系统分析区域地质背景、矿床地质特征的基础上,对矿床成因进行了研究。研究认为:三叠系地层是夺尔贡玛金锑矿体及碎裂蚀变带的主要赋存层位;甘德-玛多深大断裂带严格控制其产状,北东向、近东西向次级断裂构造是主要的储矿构造,矿体呈条带状产出;矿床类型为构造蚀变岩型;成矿时代为印支造山晚期。该区成矿地质条件优越,具有寻找金锑矿的潜力。The Guergongma gold and antimony deposit is located in the northern gold-antimony metallogenic belt of Bayankala Mountain,Qinghai Province,where gold,antimony,mercury,arsenic and other minerals have been found.In order to further clarify the direction of mineral exploration,the author conducted geological and mineral survey work,combined with the results of geological exploration work in the area,and based on a systematic analysis of the regional geological background and geological characteristics of the deposit,studied the genesis of the deposit.Research suggests that the Triassic strata are the main occurrence layers of the Duoergongma gold antimony deposit and the fractured alteration zone;The Gande Maduo deep fault zone strictly controls its occurrence,with secondary fault structures in the northeast and near east-west directions being the main ore storage structures,and ore bodies occurring in a strip like manner;The deposit type is tectonic altered rock type;The mineralization period is the late Indosinian orogeny.The ore-forming geological conditions in this area are superior and have the potential to search for gold antimony deposits.

关 键 词：夺尔贡玛金锑矿 地质特征 矿床成因 

分 类 号：P619.215[天文地球—矿床学]