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    藏南查拉普岩金矿床特征、发现及时代约束

    郑有业 多吉 马国桃 陈静 代芳华

    郑有业, 多吉, 马国桃, 陈静, 代芳华, 2007. 藏南查拉普岩金矿床特征、发现及时代约束. 地球科学, 32(2): 185-193.
    引用本文: 郑有业, 多吉, 马国桃, 陈静, 代芳华, 2007. 藏南查拉普岩金矿床特征、发现及时代约束. 地球科学, 32(2): 185-193.
    ZHENG You-ye, DUO Ji, MA Guo-tao, CHEN Jing, DAI Fang-hua1, 2007. Mineralization Characteristics, Discovery and Age Restriction of Chalapu Hardrock Gold Deposit, Southern Tibet. Earth Science, 32(2): 185-193.
    Citation: ZHENG You-ye, DUO Ji, MA Guo-tao, CHEN Jing, DAI Fang-hua1, 2007. Mineralization Characteristics, Discovery and Age Restriction of Chalapu Hardrock Gold Deposit, Southern Tibet. Earth Science, 32(2): 185-193.

    藏南查拉普岩金矿床特征、发现及时代约束

    基金项目: 

    国家重点基础研究发展规划项目 2002CB412610

    国家自然科学基金项目 40542008

    详细信息
      作者简介:

      郑有业(1962 -), 男, 博士, 教授, 主要从事基础地质、成矿规律及矿产勘察评价工作.E-mail: zhyouye@163.com

      通讯作者:

      马国桃, E-mail: jzmaguotao@163.com

    • 中图分类号: P618.51

    Mineralization Characteristics, Discovery and Age Restriction of Chalapu Hardrock Gold Deposit, Southern Tibet

    • 摘要: 查拉普岩金矿床是藏南著名的北喜马拉雅构造带中新发现的第一个也是最大一个岩金矿床, 是西藏境内迄今为止报道的首个卡林型金矿床.但它的发现只是藏南岩金找矿突破的前奏, 随着勘查研究工作的深入, 北喜马拉雅构造带在岩金或以岩金为主的金锑找矿方面将会取得重大突破.首次系统介绍查拉普岩金矿床成矿环境、成矿特征的同时, 对其成矿时代提出约束, 得出该类型金矿最终成矿作用与藏南大规模拆离系的形成和演化密切相关, 也显示北喜马拉雅与冈底斯斑岩铜矿带在晚新生代成矿方面具有某种成因联系, 为该区进一步的岩金找矿提供了参考和借鉴, 具有重要的理论及现实意义.

       

    • 图  1  藏南区域构造格架及矿床(点)分布图(郑有业等, 2004)

      Fig.  1.  Tectonic map of the southern Tibet, showing the distribution of gold deposits(spots)

      图  2  西藏隆子县查拉普金矿床地质简图

      1.细砂质板岩夹碳质板岩; 2.碳质板岩夹细砂质板岩; 3.细砂质板岩夹碳质板岩、细砂岩; 4.细晶岩脉; 5.辉长辉绿岩脉; 6.闪长玢岩脉; 7.产状; 8.金矿带(体)及编号; 9.地质界线

      Fig.  2.  Simplified geological map of the Chalapu gold deposit in Lhunze County, southern Tibet

      图  3  藏南加查-隆子县一带1∶ 20万水系沉积物异常图(据西藏化探数据库成图)

      Fig.  3.  Distribution of 1∶ 200 000 stream sediment a- nomalies in Lhodak County and Lhunze County, southern Tibet

      图  4  藏南隆子县查拉普1∶ 20万水系沉积物异常平面图(据西藏化探数据库成图)

      Fig.  4.  Distribution of 1∶ 200 000 stream sediment anomalies in the Chalapu deposit, Lhunze County, Tibet

      图  5  藏南隆子县查拉普一带1∶ 5万水系沉积物异常平面图

      Fig.  5.  Distribution of 1∶ 50 000 stream sediment anomalies in the Chalapu deposit, Lhunze County, Tibet

      表  1  查拉普金矿床石英脉ESR测年结果

      Table  1.   ESR dating of quartz vein in the Chalapu gold deposit

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    • 收稿日期:  2007-02-08
    • 刊出日期:  2007-03-25

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