| 云南文山麻栗坡新寨锡矿成矿条件分析 |
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| 引用本文： | 杨国尼. 云南文山麻栗坡新寨锡矿成矿条件分析[J]. 云南地质, 2008, 27(2): 229-234 |
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| 作者姓名： | 杨国尼 |
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| 作者单位： | 云南省有色地质306队地勘院,云南,昆明,650216 |
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| 摘 要： | 早加里东期拗陷区沉积形成矿源层，晚加里东一印支期区域变质作用、混合岩化作用使锡质初步富集，后期热液叠加淬取使成矿元素得以重新活化转移到热液中，成为含矿热液（矿浆），运移到适当部位聚集形成工业锡矿体。
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| 关 键 词： | 热液叠加 变质改造 沉积 新寨锡矿 老君山滇东南 |
AN ANALYSIS OF THE METALLOGENETIC CONDITIONS OF XINZHAI SN DEPOSIT |
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| YANG Guo-ni. AN ANALYSIS OF THE METALLOGENETIC CONDITIONS OF XINZHAI SN DEPOSIT[J]. Yunnan Geology, 2008, 27(2): 229-234 |
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| Authors: | YANG Guo-ni |
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| Affiliation: | YANG Guo-ni (Geoexploration Institute, Nonferroue Geological Team 306 of Yunnan, Kunming 650216 ) |
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| Abstract: | The formation of ore deposit experienced 3 stages as follows ： 1. the ore sources bed was formed in the sediment of earlier Calidonian depression area; 2. the Sn was preliminarily con- centrated by later Calidonian -lndosinian metamorphism, migmatization; 3. the metallogenetic element was activated anew and then migrated into the thermal fluid by the superimposition and extraction of posterior hydrothermal activity, became the ore - bearing fluid （ ore pulp）, migrated to the suitable place, concentrated and formed the Sn industrial ore body when the medium conditions changed. |
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| Keywords: | Superimposition of Thermal Fluid Metamorphic Reformation Sedimentation Xinzhai Sn Deposit Laojunshan, Yunnan |
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