| 西藏查个勒铅锌矿床成矿时代研究及地质意义 |
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| 引用本文： | 黄瀚霄 李光明 曾庆高 刘,波 段志明 董随亮 张,晖 张,丽.西藏查个勒铅锌矿床成矿时代研究及地质意义[J].中国地质,2012,39(3):750-759. |
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| 作者姓名： | 黄瀚霄 李光明 曾庆高 刘 波 段志明 董随亮 张 晖 张 丽 |
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| 作者单位： | 1. 成都地质矿产研究所,四川成都,610081
2. 西藏地质勘查局区调队,西藏拉萨,850000 |
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| 基金项目： | 国家重点基础研究发展计划，青藏专项 |
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| 摘 要： | 查个勒铅锌矿位于冈底斯—念青唐古拉成矿带西段。矿体受花岗斑岩岩体形态及北东向、北西向断裂控制,产于岩体接触带与断裂破碎带中,属于典型的矽卡岩型矿床。花岗斑岩的锆石ICP-MS U-Pb年龄加权平均值为(63.18±0.77)Ma,岩石具有重熔型花岗岩地球化学特征,形成于碰撞环境。初步研究表明,查个勒铅锌矿床的形成与印—亚大陆碰撞有关,形成于印度大陆陡俯冲的主碰撞阶段。
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| 关 键 词： | 查个勒 冈底斯—念青唐古拉成矿带 铅锌 矽卡岩矿床 |
Geochronology of the Chagele Pb-Zn deposit in Tibet and its significance |
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| HUANG Han-xiao,LI Guang-ming,ZENG Qing-gao,LIU Bo,DUAN Zhi-ming,DONG Sui-liang,ZHANG Hui,ZHANG Li.Geochronology of the Chagele Pb-Zn deposit in Tibet and its significance[J].Chinese Geology,2012,39(3):750-759. |
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| Authors: | HUANG Han-xiao LI Guang-ming ZENG Qing-gao LIU Bo DUAN Zhi-ming DONG Sui-liang ZHANG Hui ZHANG Li |
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| Institution: | 1(1.Chengdu Institute of Geology and Mineral Resources,Chengdu 610081,Sichuan,China;2.Tibet Bureau of Geology and Mineral Resource Exploration,Lhasa 850000,Tibet,China) |
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| Abstract: | The Chagele Pb-Zn deposit is located in western Gandise-Nyainqentanglha metallogenic belt.Ore bodies are produced in the contact zone and rock fracture zones and controlled by the shape of granite porphyry and NE-NW trending faults,suggesting a typical skarn deposit.Zircon ICP-MS U-Pb weighted average age of granite porphyry is 63.18Ma ± 0.77Ma,and the geochemical characteristics of the rocks indicate melting-type granite formed in the collision environment.Preliminary studies show that the Chagele Pb-Zn deposit was genetically related to the collision of India – Asia continent and was formed at the main collision stage of steep subduction of Indian continent. |
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| Keywords: | Chagele Gandise-Nyainqentanglha metallogenic belt Pb-Zn skarn deposit |
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