| 中元古界昆阳群因民组铁铜矿的成矿地球化学研究 |
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| 引用本文： | 李志群.中元古界昆阳群因民组铁铜矿的成矿地球化学研究[J].矿产与地质,1996,10(2):100-107. |
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| 作者姓名： | 李志群 |
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| 作者单位： | 西南有色地质勘查局地质研究所 |
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| 摘 要： | 因民组是川滇地区重要的铁铜矿赋存层位之一。系统地研究了因民组铁铜矿床的常量元素、微量元素、稀土元素、同位素和包裹体的特征，阐明成矿作用具有火山热水喷流－沉积成矿作用的地球化学特点。
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| 关 键 词： | 铁矿床 铜矿床 成帮 地球化学 中元古界 |
STUDY ON METALLOGENIC GEOCHEMISTRY OF IRON AND COPPER DEPOSITS IN THE YINMIN FORMATION OF THE KUNGYANG GROUP IN THE MIDDLE PROTEROZOIC SUBERATHEM |
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| Li Zhiqun.STUDY ON METALLOGENIC GEOCHEMISTRY OF IRON AND COPPER DEPOSITS IN THE YINMIN FORMATION OF THE KUNGYANG GROUP IN THE MIDDLE PROTEROZOIC SUBERATHEM[J].Mineral Resources and Geology,1996,10(2):100-107. |
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| Authors: | Li Zhiqun |
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| Abstract: | The Yinmin formation is one of the important host formations for iron and copper deposits in Sichuan and Yunnan provinces. The common elements,trace elements, REE, isotope composition and inclusion characters of the iron and copper deposits in the Yinmin formation have been systematically studied. The metallization is geochemically charactered by fumarolic effusion sedimentation of volcanic hydrothermal solution. The iron and copper deposits in the formation were the results of the metallization by the fumarolic effusion sedimentation of the volcanic hydrothermal solution in a limited graben basin with bathyal abyssal water, which were controlled by fault network system in the Kunyang rift at the Yinmin stage in middle Proterozoic suberathem. Mineralization compositions were from the upper mantle, earth crust and sea water. The temperature and pressure for the mineralization were changed by different types of deposits. |
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| Keywords: | Iron and copper deposits Geologic geochemistry Metallization by fumarolic effusion-sedimentation of volcanic hydrothermal solution Kunyang group |
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