| 构造改造成矿机制：——四川羊石坑汞矿成矿作用探讨 |
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| 引用本文： | 夏勇.构造改造成矿机制：——四川羊石坑汞矿成矿作用探讨[J].地质与勘探,1996,32(2):4-11. |
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| 作者姓名： | 夏勇 |
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| 作者单位： | 中国科学院地球化学研究所矿床地球化学开放研究实验室 |
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| 基金项目： | 中国科学院矿床地球化学开放研究实验室基金,国家自然科学基金 |
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| 摘 要： | 羊石坑汞矿床是位于四川省秀山县境内的大型汞矿床，产于下寒武统清虚洞组碳酸盐岩中，受地层和构造双重控制，并以细脉浸染型为特征而区别于我国其他大型汞矿床。概括了该矿产出的区域地质背景、物质来源和构造控矿特征，通过对不同构造部位矿物、元素及同位素等的分布、分配特征和矿床地质地球化学研究，揭示了成矿物质来自沉积地层，矿源层的形成与同生断裂活动和深部物质加入有关，构造－热液活动对矿源层的改造导致了矿床形成，
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| 关 键 词： | 汞矿床 成矿机制 矿床地球化学 控矿构造 |
The New Data of Sedimentary-Tectonic Reworked Metallogenic Mechanism of Yangshikeng Mercury Deposit,Sichuan,China |
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| Xia Yong.The New Data of Sedimentary-Tectonic Reworked Metallogenic Mechanism of Yangshikeng Mercury Deposit,Sichuan,China[J].Geology and Prospecting,1996,32(2):4-11. |
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| Authors: | Xia Yong |
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| Abstract: | Yangshikeng mercury deposit,located in Xiushan county,Sichuan Province,is a large-scale mercury deposit found in carbonate rocks of Qingxudong Formation of Lower Cambrian age. It is stratigraphically and structurally controlled. The ore bodies are mainly stockwork-dissminated type. The studies of geology and ore geochmistry and changes of minerals,elements and stable isotope compositions at different structural positions indicate that the metallogenic matter came from sedimentary piles and the formation of source beds was related to activity of growth faults and the matter from depth. Tectonic and hydrothermal activity reworked the source beds and made the formation of the mercury deposit under lower temperature.The tectonic reworked strength would lead to changes of metallogenic conditions and differentiation of elements and fraction of stable isotope. |
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| Keywords: | Metallogenic Mechanism Ore Deposit Geochemistry Mercury Deposit Sichuan Province |
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