| 首次在冈底斯发现主碰撞期斑岩铜矿——来自西藏吉如斑岩铜矿辉钼矿Re-Os同位素年龄的证据 |
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| 引用本文： | 龚福志,郑有业,张刚阳,屈文俊.首次在冈底斯发现主碰撞期斑岩铜矿——来自西藏吉如斑岩铜矿辉钼矿Re-Os同位素年龄的证据[J].四川地质学报,2008,28(4):296-299. |
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| 作者姓名： | 龚福志 郑有业 张刚阳 屈文俊 |
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| 作者单位： | 1. 中国地质大学,武汉,430074
2. 中国地质科学院国家地质实验测试中心,北京,100037 |
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| 摘 要： | 西藏吉如斑岩铜矿位于冈底斯成矿带中段，其辉钼矿Re-Os同位素年龄显示矿床的成矿年龄为48～51Ma左右，即印度一亚洲大陆碰撞的主碰撞期的中晚阶段，明显不同于同一矿带已发现的驱龙、冲江等矿床。这类矿床在冈底斯还是第一次被发现，具有重大理论及实践意义。
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| 关 键 词： | 冈底斯 斑岩铜矿 主碰撞期 西藏吉如 |
The First Discovery of Porphyry Copper Deposits Formed During the Main Indian-Tibetan Collision in Gangdis ê, Tibet: Constraints from Re-Os Ages for Molybdenite from the Jyiru Porphyry Copper Deposit |
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| GONG Fu-zhi,ZHENG You-ye,ZHANG Gang-yang,QU Wen-jun.The First Discovery of Porphyry Copper Deposits Formed During the Main Indian-Tibetan Collision in Gangdis ê, Tibet: Constraints from Re-Os Ages for Molybdenite from the Jyiru Porphyry Copper Deposit[J].Acta Geologica Sichuan,2008,28(4):296-299. |
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| Authors: | GONG Fu-zhi ZHENG You-ye ZHANG Gang-yang QU Wen-jun |
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| Institution: | GONG Fu-zhi, ZHENG You-ye, ZHANG Gang-yang, QU Wen-jun ( 1.China University of Geosciences, Wuhan 430074; 2.National Research Center for Geoanalysis, Chinese Academy of Geological Sciences, Beijing 100037 ) |
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| Abstract: | Molybdenite from the Jyiru porphyry copper deposit lying in the medium sector of the Gangdis ê metallogenic belt, Tibet yields Re-Os isotope ages varying from 48 Ma to 51 Ma corresponding to the medium-terminal phase of the main Indian-Tibetan collision, which is different obviously from the Qulong and Chongjiang porphyry copper deposits in the same belt. It is the first discovery of this deposit type in Gangdis ê which is of importance to theory and practice. |
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| Keywords: | Gangdis ê porphyry copper deposit main Indian-Tibetan collision Jyiru Tibet |
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