| 湖南沃溪钨-锑-金建造矿床同生成因的微量元素和硫同位素证据 |
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| 引用本文： | 顾雪祥,刘建明,Oskar Schulz,Franz Vavta,郑明华.湖南沃溪钨-锑-金建造矿床同生成因的微量元素和硫同位素证据[J].地质科学,2004,39(3):424-439,415. |
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| 作者姓名： | 顾雪祥 刘建明 Oskar Schulz Franz Vavta 郑明华 |
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| 作者单位： | 中国科学院地球化学研究所,贵阳,550002;中国科学院地质与地球物理研究所,北京,100029;Institute of Mineralogy and Petrography,University of Innsbruck,Innsbruck A-6020,Austria;成都理工大学,成都,610059 |
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| 基金项目： | 国家自然科学基金，奥地利国家自然科学基金，中国科学院"百人计划" |
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| 摘 要： | 对岩矿石和矿物的微量元素、稀土元素和硫同位素地球化学的研究表明,湖南沃溪钨-锑-金建造矿床系海底同生热水沉积作用的产物。矿石与围岩中微量元素和稀土元素含量的变化关系,反映了一种复杂的热液、海水以及陆源碎屑的联合影响。矿石及其中矿物(石英)的稀土元素配分模式可与许多沉积喷流型(sedex型)块状硫化物矿石及其共生的喷流岩相对比,暗示了两者具有相似的形成机理。矿石的硫同位素资料显示,生物成因硫与热液成因硫(下伏沉积柱中硫化物的溶解和/或部分海水硫酸盐的还原)共同参与了成矿作用过程。
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| 关 键 词： | 同生成因 微量元素 硫同位素证据 钨锑金矿床 湖南沃溪 |
| 文章编号： | 0563-5020(2004)03-0424-16 |
| 收稿时间： | 2003-05-27 |
| 修稿时间： | 2003-05-27; |
SYNGENETIC ORIGIN OF THE WOXI W-Sb-Au DEPOSIT IN HUNAN:EVIDENCE FROM TRACE ELEMENTS AND SULFUR ISOTOPES |
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| Oskar Schulz,Franz Vavta.SYNGENETIC ORIGIN OF THE WOXI W-Sb-Au DEPOSIT IN HUNAN:EVIDENCE FROM TRACE ELEMENTS AND SULFUR ISOTOPES[J].Chinese Journal of Geology,2004,39(3):424-439,415. |
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| Authors: | Oskar Schulz Franz Vavta |
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| Institution: | 1. Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002;2. Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029;3. Institute of Mineralogy and Petrography, University of Innsbruck, Innsbruck A-6020, Austria;4. Chengdu University of Technology, Chengdu 610059 |
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| Abstract: | A geochemical study on trace elements, rare earth elements and sulfur isotopes on the ores and minerals from the Woxi W Sb Au deposit in Hunan province showed that the deposit might be of syngeneitc hydrothermal sedimentary origin. Variation of the ores and host rocks in concentrations of trace and rare earth elements reflected a complex combination of detrital, hydrothermal and seawater inputs. Chondrite normalized REE patterns of both the ores and the individual minerals were comparable overall with many sedex type sulfide ores and associated exhalites, implying a similar genesis for these deposits. The sulfur isotope data of the sulfides indicated presence of both biogenic sulfide sulfur and hydrothermal sulfide sulfur (dissolution of sulfide in the footwall rock sequences and/or partial reduction of seawater sulfate). |
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| Keywords: | Syngenetic origin Evidence of trace elements Evidence of sulfur isotopes W-Sb-Au deposit Woxi in Hunan |
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