| 北祁连白银矿田火山成因块状硫化物矿床成矿金属来源讨论 |
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| 引用本文： | 王焰,张旗,许荣华,钱青.北祁连白银矿田火山成因块状硫化物矿床成矿金属来源讨论[J].地质科技情报,2001,20(4):46-50. |
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| 作者姓名： | 王焰 张旗 许荣华 钱青 |
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| 作者单位： | 1. 西北大学地质系,
2. 中国科学院地质与地球物理研究所, |
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| 基金项目： | 国家自然科学基金资助项目 ( 4 96 72 14 1，49872 0 2 7)，陕西省教委 1998年度基金资助项目，陕西省科委 1999年度基金资助项目 |
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| 摘 要： | 在总结国外近年来火山成因块状硫化物矿床有关成矿金属来源的研究进 展的基础上，对白银矿田的矿石和斌矿流纹岩进行了铅同位素分析研究，发现白银矿田的成矿金属元素可能是岩浆流体和循环的热液流体混合的结果，岩浆流体主要提供Cu,Zn,Fe等金属元素的来源，循环的热液流体则从陆壳物质和大洋沉积物中淋滤出Pb.
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| 关 键 词： | 北祁连 白银矿田 块状硫化物矿床 成矿金属 火山作用 成矿流体 铅同位素 |
| 文章编号： | 1000-7849(2001)04-0046-05 |
| 修稿时间： | 2001年3月27日 |
A DISCUSSION ON THE METAL SOURCE OF BAIYIN VOLCANIC HOSTED MASSIVE DEP OSIT FROM THE NORTH QILIAN MOUNTAINS |
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| Wang Yan,Zhang Qi,Xu Rong hua,Qian Qing.A DISCUSSION ON THE METAL SOURCE OF BAIYIN VOLCANIC HOSTED MASSIVE DEP OSIT FROM THE NORTH QILIAN MOUNTAINS[J].Geological Science and Technology Information,2001,20(4):46-50. |
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| Authors: | Wang Yan Zhang Qi Xu Rong hua Qian Qing |
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| Institution: | Wang Yan 1 Zhang Qi 2 Xu Rong hua 2 Qian Qing 2 |
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| Abstract: | The paper has reviewed the international progresses on the study of metal sources for the volcanic hosted massive sulfide deposit.A study of lead isotope is made for ores and rhyolites respectively in the Baiyin deposit. The results show that the metal source of the Baiyin deposit is a mixture of magmatic fluid and recycled hydrothermal fluid.The metal copper,zinc and iron etc.are derived directly from the magmatic fluid whereas lead is leached from terrigenous and pelagic sediments by hydrothermal fluid. |
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| Keywords: | the North Qilian Mountains Baiyin deposit volcanic hosted massive sulfide deposit metal source |
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