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| 湖南沃溪钨-锑-金矿床的矿石组构学特征及其成因意义 | |
| 引用本文： | 顾雪祥,Oskar Schulz,Franz Vavtar,刘建明,郑明华.湖南沃溪钨-锑-金矿床的矿石组构学特征及其成因意义[J].矿床地质,2003,22(2):107-120. |
| 作者姓名： | 顾雪祥 Oskar Schulz Franz Vavtar 刘建明 郑明华 |
| 作者单位： | 1. 中国科学院地球化学研究所,贵州,贵阳,550002 2. Institute of Mineralogy and Petrography,University of Innsbruck,A-6020 Innsbruck,Austria 3. 中国科学院地质与地球物理研究所,北京,100101 4. 成都理工大学,四川,成都,610059 |
| 基金项目： | 国家自然科学基金 ( 4 4960 2 0 2 9,49872 0 3 8)，奥地利国家科学基金 (P12 0 2 6_GEO)，中国科学院百人计划，科技部基础研究重 大项目 (G19990 43 2 10 )资助 |
| 摘 要： | 通过对湖南沃溪矿床的宏观至微观尺度上的矿石组构学研究，揭示出矿床系同生热水沉积成因。层状矿体、细脉状矿化以及围岩蚀变之间的空间关系，指示了矿石与其所赋存的围岩同时形成。矿床形成后的变质—变形作用，主要使矿物发生重结晶、碎裂、位错以及小范围的再活化等。 |
| 关 键 词： | 湖南 钨－锑－金矿床 矿石组构学 围岩 空间关系 同生热水沉积 变质－变形作用 |
| 文章编号： | 0258-7106(2003)02-0107-14 |
Ore Fabric Characteristics of Woxi W-Sb-Au Deposit in Hunan and Their Genetic Significance |
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| Oskar Schulz,Franz Vavtar.Ore Fabric Characteristics of Woxi W-Sb-Au Deposit in Hunan and Their Genetic Significance[J].Mineral Deposits,2003,22(2):107-120. | |
| Authors: | Oskar Schulz Franz Vavtar |
| Abstract: | Ore fabric studies of the Woxi W_Sb_Au deposit on macro_ to micro_ scales have revealed that the deposit is of syngenetic hydrothermal sedimentary origin. Ore fabric evidence for a syngenetic origin mainly includes: (1) rhythmical, fine layering/banding of sulfides, scheelite, quartz, and pelagic metasediments, (2) folding of both ore layers and their host rocks, (3) soft_sediment deformation due to slumping and synsedimentay sliding, (4) colloform textures of fine_grained pyrite, and (5) abundant si fabrics in minerals of pyrite, stibnite and schee_lite. The intimate spatial relationships between the stratiform ores, the stringer veins, and the alteration blankets suggest coeval deposition of the ores and their host metasediments. Postdepositional metamorphism and tectonic deformation chiefly resulted in recrystallization, cataclasm, dislocation, and small_scale remobilization of minerals . |
| Keywords: | geology ore fabrics sedimentary exhalation syngenetic origin W_Sb_Au deposit Woxi Hunan Province |
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