| 八方山层控多金属矿床地质特征及成因探讨 |
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| 引用本文： | 吕仁生,隗合明.八方山层控多金属矿床地质特征及成因探讨[J].地球科学与环境学报,1990(4). |
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| 作者姓名： | 吕仁生 隗合明 |
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| 作者单位： | 西安地质学院地勘系
(吕仁生)，西安地质学院地勘系(隗合明) |
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| 摘 要： | 依据矿床地质特征沿及铅、硫、氢、氧同位素以及包裹体和微量元素等测试资料分析表明,该矿床为中泥盆世沿海底同生断层喷溢的含矿热卤水与生物还原海水硫酸盐中的硫相互作用,形成同生含矿硅质岩,再经后期改造而成层控多金属矿床。所以矿床既有同生沉积标志,又有后生改造迹象。属海底喷气沉积—受改造的层控矿床。
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| 关 键 词： | 硅质岩 同生断层 海底喷气沉积 |
THE GEOLOGICAL CHARACTERISTICS AND GENETIC INVESTIGATION OF BAFANGSHAN STRATABOUND POLYMETALLIC ORES IN SHAANXI PROVINCE |
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| Lu Rensheng Wei Heming.THE GEOLOGICAL CHARACTERISTICS AND GENETIC INVESTIGATION OF BAFANGSHAN STRATABOUND POLYMETALLIC ORES IN SHAANXI PROVINCE[J].Journal of Earth Sciences and Environment,1990(4). |
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| Authors: | Lu Rensheng Wei Heming |
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| Institution: | Xi' an College of Geology |
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| Abstract: | Based on the studies of the geological characteristic of ore deposit stable isotopes, fluid inclusions and trace elements, it is indicated that the Bafangshan polymetallic ores are the stratabound deposit. Their origins are closely related to hydrothermal activities with metallic elements derived from the stratigraphy and sulfer reduction from SO42- in ore solution by anaerobic bacteria. It is considered that the ores formed by means of precipitation of sulfi-de minerals coming from hot metallicferous brines emanating into the seafloor. The ores were modified in varying degree after formation. |
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| Keywords: | polymetallic ores stratabound deposit submarine emanation |
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