西藏查个勒铜铅锌矿成岩成矿时代及意义

高顺宝; 郑有业; 田立明; 张众; 屈文俊; 刘敏院; 郑海涛; 郑磊; 朱继华

doi:10.3799/dqkx.2012.057

Volume 37 Issue 3

May 2012

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Article Navigation > Earth Science > 2012 > 37(3): 507-514

GAO Shun-bao, ZHENG You-ye, TIAN Li-ming, ZHANG Zhong, QU Wen-jun, LIU Min-yuan, ZHENG Hai-tao, ZHENG Lei, ZHU Ji-hua, 2012. Geochronology of Magmatic Intrusions and Mineralization of Chagele Copper-Lead-Zinc Deposit in Tibet and Its Implications. Earth Science, 37(3): 507-514. doi: 10.3799/dqkx.2012.057

Citation:

GAO Shun-bao, ZHENG You-ye, TIAN Li-ming, ZHANG Zhong, QU Wen-jun, LIU Min-yuan, ZHENG Hai-tao, ZHENG Lei, ZHU Ji-hua, 2012. Geochronology of Magmatic Intrusions and Mineralization of Chagele Copper-Lead-Zinc Deposit in Tibet and Its Implications. Earth Science, 37(3): 507-514. doi: 10.3799/dqkx.2012.057

Citation:

GAO Shun-bao, ZHENG You-ye, TIAN Li-ming, ZHANG Zhong, QU Wen-jun, LIU Min-yuan, ZHENG Hai-tao, ZHENG Lei, ZHU Ji-hua, 2012. Geochronology of Magmatic Intrusions and Mineralization of Chagele Copper-Lead-Zinc Deposit in Tibet and Its Implications. Earth Science, 37(3): 507-514. doi: 10.3799/dqkx.2012.057

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Geochronology of Magmatic Intrusions and Mineralization of Chagele Copper-Lead-Zinc Deposit in Tibet and Its Implications

doi: 10.3799/dqkx.2012.057

1.
Geological Survey, China University of Geosciences, Wuhan 430074, China
2.
Faculty of Earth Resources, China University of Geosciences, Wuhan 430074, China
3.
Faculty of Earth Science and Mineral Resources, China University of Geosciences, Beijing 100083, China
4.
State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences, Wuhan 430074, China
5.
National Research Center of Geoanalysis, Beijing 100037, China
6.
Tibet Huayu Mining Industry Company Limited, Lhasa 850000, China

Received Date: 2011-11-15
Available Online: 2021-11-09
Publish Date: 2012-05-01

Abstract

Abstract

Tibet chagele Copper-lead-zinc deposit is in the west end of those copper-polymetallic deposits found in Nyainqentanglha copper-lead-zinc-silver metallogenic belt, and there are two types of mineralization in the mining area, namely, copper-lead-zinc mineralization of the contact metasomatic filling and copper-molybdenum mineralization of porphyry. The zircon LA-ICP-MS U-Pb age and molybdenite Re-Os age show that two types of mineralization almost formed at the same time. The petrogenic age of the northern granite-porphyry related to copper-lead-zinc-silver mineralization is 62.1±1.1 Ma (MSWD=2.7), the southern granite-porphyry which is related to copper-molybdenum mineralization is 63.28±0.86 Ma (MSWD=3.2), and the molybdenite Re-Os age of the south is 61.49±0.60 Ma (MSWD=1.5), which formed at syn-collision stage after northward subduction of the Yarlung Zangbo oceanic basin. This study improves and enriches the time evolvement sequence and genesis of the collision metallogenic stage in Nyainqentanglha copper-lead-zinc-silver mineralization belt, and it also extends westwards its length by 200 km (Qingdu in Xietongmen-Chagele in Angren). As a result, it is found to be a huge copper-lead-zinc-silver metallogenic belt, extending in the direction of east-west more than 800 km, with deposits mainly formed in collection stage. In addition, this study provides important basis to the prospecting of the same deposits in the west of the belt.
- Nyainqentanglha,
- Chagele deposit,
- collision period,
- magmatism and mineralization,
- geochronology

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Geochronology of Magmatic Intrusions and Mineralization of Chagele Copper-Lead-Zinc Deposit in Tibet and Its Implications

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