| 湖南东坡矿田铅锌矿成矿地质背景及成矿作用 |
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| 引用本文： | 唐菊兴,王润民,林文第.湖南东坡矿田铅锌矿成矿地质背景及成矿作用[J].成都理工大学学报(自然科学版),1992(4). |
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| 作者姓名： | 唐菊兴 王润民 林文第 |
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| 作者单位： | 成都地质学院地质矿产勘查系
(唐菊兴，王润民)，成都地质学院地质矿产勘查系(林文第) |
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| 摘 要： | 湖南东坡矿田铅锌矿床是典型的沉积-热液改造(叠加)型层控矿床。含矿岩系为中、上泥盆统。该区在早泥盆世末期就开始了拉张盆地的演化,拉张盆地的热沉降导致了成矿物质的早期富集和矿化。铅锌矿的形成经历了三个阶段:盆地演化的同生断裂阶段成矿物质的初步富集、后生断裂阶段早期铅锌矿体的形成、千里山花岗岩的侵入。
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| 关 键 词： | 东坡矿田 铅锌矿 沉积-热液改造(叠加)型矿床 拉张盆地 |
MINERALIZING PROCESSES AND GEOLOGIC SETTINGS OF Pb-Zn DEPOSITS IN DONGPO POLYMETALLIC OREFIELD, HUNAN |
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| Tang Juxin,Wang Runming,Lin Wendi.MINERALIZING PROCESSES AND GEOLOGIC SETTINGS OF Pb-Zn DEPOSITS IN DONGPO POLYMETALLIC OREFIELD, HUNAN[J].Journal of Chengdu University of Technology: Sci & Technol Ed,1992(4). |
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| Authors: | Tang Juxin Wang Runming Lin Wendi |
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| Institution: | Tang Juxin;Wang Runming;Lin Wendi |
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| Abstract: | The Pb-Zn deposits in Dongpo orefield are typically sedimentary-hydrothermal reworkingstrata-bounded deposits. The rock formation of the Pb-Zn deposits is M. U. Devonian. The ore beds areclasitics and carbonates. It is proved in ds artcle that the mineralization had preformed since the eval-uation of sedimentary basin of this region in late E. Devonian. The first collection and mineralization ofpb-Zn elments resulted from the thermal subsidence of extendonal basin here. There are three phasesof Pb-Zn deposits' forming in this region:(1) Pb-Zn elements were first colected during the syn-rift stag of the evaluation of basih;(2) The early ore deposits were forming during the post-rift stage of the evaluation of basin;(3) Pb-Zn deposits of the sedimentary-hydrothermal rewoking (superimposing) were formed as theintrusion of Qianlishan granite. |
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| Keywords: | Dongpo orefield lead-zinc ore sedimentary-hydrothermal reworked(superimposed) deposits extensional basin |
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