| 四川石棉独立碲矿床蚀变岩的地质地球化学研究 |
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| 引用本文： | 银剑钊,陈毓川,周剑雄,杨百川,郭成远.四川石棉独立碲矿床蚀变岩的地质地球化学研究[J].地球科学与环境学报,1996(4). |
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| 作者姓名： | 银剑钊 陈毓川 周剑雄 杨百川 郭成远 |
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| 作者单位： | 中国地质科学院矿床地质研究所，四川有色稀贵金属公司 |
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| 基金项目： | 国家博士后基金,地矿部定项基金,国家“八五”重点攻关项目 |
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| 摘 要： | 四川石棉大水沟独立碲矿床堪称世界首例，其矿体两侧的围岩蚀变较窄，且蚀变带与矿脉及未蚀变岩呈清楚而截然的接触关系。主要围岩蚀变为白云石化、白（绢）云母化、云英岩化及电气石化等。这些蚀变作用分别发生于１７７．７～１６５．１Ｍａ和９１．７１～８０．１９Ｍａ。蚀变作用过程中ＳｉＯ２大量析出，Ａｌ２Ｏ３、ＴｉＯ２、ＣａＯ、ＭｇＯ、Ｋ２Ｏ、Ｈ２Ｏ、ＣＯ２、Ｆｅ２Ｏ３、ＭｎＯ则有不同程度地带入。与此同时，ＲＥＥ在此过程中包集体迁出，Ｔｅ、Ｂｉ、ＡＳ等元素的含量则决定于蚀变作用及其强度，而与原岩无关。
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| 关 键 词： | 蚀变作用 地球化学 独立碲矿床 |
RESEARCH ON THE GEOLOGY AND GECOHEMISTRY OF THE ALTERED ROCKS OF DASHUIGOU INDEPENDENT TELLURIUM ORE DEPOSIT IN SHIMIAN COUNTY,SICHUAN PROVINCE,CHINA |
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| Yin Jianzhao, Chen Yuchuan, Zhou Jianxiong.RESEARCH ON THE GEOLOGY AND GECOHEMISTRY OF THE ALTERED ROCKS OF DASHUIGOU INDEPENDENT TELLURIUM ORE DEPOSIT IN SHIMIAN COUNTY,SICHUAN PROVINCE,CHINA[J].Journal of Earth Sciences and Environment,1996(4). |
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| Authors: | Yin Jianzhao Chen Yuchuan Zhou Jianxiong |
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| Abstract: | The altered zones next to the tellurium ore bodies in Dashuigou independent tellurium deposit in SichuanProvince, China, which is the first and the only independent tellurium ore deposit in the world, are very narrow. And clear and sudden contact exists between the altered rocks, the ore bodies and the unaltereed rocks.The main alterations are as follows: muscovitization, dolomitization, biotitization, sericitization, chloritization,tourmalinization, greisenization and so on. These alterations happened seperately in 177. 7-165. 1Ma and91. 71-80. 91 Ma. During the alteration, a lot of SiO2 gave out, but Al2O3, TiO2, CaO, MgO, K2O, H2O,CO2, Fe2O3 and MnO added sepaarately. Meanwhile, REE gave out together. The abundance of Te, Bi, Seand so on,is closely related with the strength of alteration,and has nothing to do with the original wall-rocks. |
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| Keywords: | alteration genochemistry independent tellurium ore deposit |
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