| 云南个旧矿集区区域构造-岩浆演化与锡铜多金属成矿系统 |
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| 引用本文： | 徐启东,夏庆霖,成秋明.云南个旧矿集区区域构造-岩浆演化与锡铜多金属成矿系统[J].地球科学,2009,34(2). |
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| 作者姓名： | 徐启东 夏庆霖 成秋明 |
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| 作者单位： | 中国地质大学资源学院,湖北武汉,430074;中国地质大学地质过程与矿产资源国家重点实验室,湖北武汉430074
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| 基金项目： | 中国地质调查局研究项目，教育部创新团队项目，地质过程与矿产资源国家重点实验室科技部专项经费资助项目 |
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| 摘 要： | 个旧矿集区是滇东南最重要的锡铜多金属矿产地之一,形成了云英岩一石英脉型矿化、与矽卡岩化有关的锡石-硫化物型矿化、蚀变基性火山一次火山岩型矿化和与断裂有关的各种脉型矿化构成的锡铜多金属成矿系统.根据区域构造-岩浆演化与锡铜多金属矿化系统的配置关系研究,认为燕山晚期复式花岗岩体侵位进入以中三叠统为主的碳酸盐岩地层组成的褶皱带中,锡铜等金属元素的成矿富集产生于花岗岩体与围岩接触带及其附近发生的接触交代和更远处发生的交代-充填过程,成矿元素主要源自燕山期中下部地壳物质熔融形成的花岗岩浆和印支期裂谷环境中来自地幔的玄武岩-辉绿岩-辉长岩类,多期脉动式的岩浆活动驱动了一个长效的热液系统,这些要素共同构筑了这一巨量的金属矿集区.由此建立了个旧矿集区的区域成矿模型,并对进一步寻找新的矿化类型提出了理论线索.
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| 关 键 词： | 区域构造环境 多期岩浆活动 源区 矿化类型 滇东南 |
Tectono-Magmatic Evolution Related to Metallogenic System in Gejiu Ore-Concentration Area,Southeast Yunnan of China |
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| XU Qi-dong,XIA Qing-lin,CHENG Qiu-ming,.Faculty of Earth Resources,China University of Geosciences,Wuhan,China.State Key Laboratory of Geological Processes , Mineral Resources,China.Tectono-Magmatic Evolution Related to Metallogenic System in Gejiu Ore-Concentration Area,Southeast Yunnan of China[J].Earth Science-Journal of China University of Geosciences,2009,34(2). |
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| Authors: | XU Qi-dong XIA Qing-lin CHENG Qiu-ming Faculty of Earth Resources China University of Geosciences Wuhan ChinaState Key Laboratory of Geological Processes Mineral Resources China |
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| Institution: | XU Qi-dong1,2,XIA Qing-lin1,CHENG Qiu-ming1,21.Faculty of Earth Resources,China University of Geosciences,Wuhan430074,China2.State Key Laboratory of Geological Processes , Mineral Resources,China |
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| Abstract: | Gejiu ore-concentration area is one of the most important occurrences of Sn-Cu polymetallic mineralization in Southeast Yunnan.Sn-Cu polymetallic system of mineralization in the area includes Sn-W greisen-quartz vein type,Cu-massive-sulfide cassiterite type,Cu-Sn altered-basic-rock type,and Sn-Pb-Zn vein types of deposits.The study of the relationship between the tectono-magmatic evolution and the Gejiu system of mineralization shows that Sn-Cu polymetal enrichment occurred in and near the contact zone betw... |
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| Keywords: | tectonic setting composite magmatism reservoir type of mineralization Southeast Yunnan |
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