| 桂东北钨锡稀有金属矿床的成矿类型、成矿时代及其地质背景 |
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| 引用本文： | 李晓峰,冯佐海,肖荣,宋慈安,杨锋,王翠云,康志强,毛伟.桂东北钨锡稀有金属矿床的成矿类型、成矿时代及其地质背景[J].地质学报,2012,86(11):1713-1725. |
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| 作者姓名： | 李晓峰 冯佐海 肖荣 宋慈安 杨锋 王翠云 康志强 毛伟 |
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| 作者单位： | 中国科学院地球化学研究所 |
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| 基金项目： | 国家自然科学基金项目（面上项目，重点项目，重大项目） |
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| 摘 要： | 在大地构造位置上,桂东北地区位于江南造山带与华南褶皱带的过渡部位,具有独特的构造地理位置。在精细测试一系列典型矿床及其有关的花岗岩年代学的基础上,本文根据矿床类型、成矿元素组合,把该地区矿床分为6个成矿系统:①与志留纪花岗岩有关W-Mo矿;②与二叠世花岗岩有关Pb-Zn矿床;③与晚三叠世花岗岩有关W-Mo和Sn-Nb-Ta矿床;④与中—晚侏罗世花岗岩有关的W-Sn矿床;⑤与白垩世花岗岩有关的W-Sn矿床;⑥与花岗岩有关的铀矿。这些矿床的形成与不同时期构造-岩浆演化密切相关,主要形成于同碰撞挤压环境或者碰撞后伸展环境。
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| 关 键 词： | 加里东期花岗岩 印支期花岗岩 燕山期花岗岩 W-Sn-Mo-Nb-Ta矿床成矿作用 桂东北 华南 |
| 收稿时间： | 2012/4/22 0:00:00 |
| 修稿时间： | 7/8/2012 6:48:32 PM |
The typical metallic deposits, geochronological, and tectonic setting in Northeast Guangxi Province, South China |
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| LI Xiaofeng,FENG Zuohai,XIAO Rong,SONG Ci′an,YANG Feng,WANG Cuiyun,KANG Zhiqiang,MAO Wei.The typical metallic deposits, geochronological, and tectonic setting in Northeast Guangxi Province, South China[J].Acta Geologica Sinica,2012,86(11):1713-1725. |
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| Authors: | LI Xiaofeng FENG Zuohai XIAO Rong SONG Ci′an YANG Feng WANG Cuiyun KANG Zhiqiang MAO Wei |
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| Institution: | Institute of Geochemistry,CAs |
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| Abstract: | Northeast Guangxi has a unique tectonic unit, and is located between the Jiangnan orogenic belt and the South China fold belt. The paper presents the accurate ages of a series of deposits and their related granites with zircon SHRIMP U-Pb, zircon LA-ICP-MS, and the muscovite and biotite Ar-Ar, as well as the molybdenite Re-Os methods. On the basis of deposit types, mineralized elements assembleges in the region, The deposits could be divided into six ore-forming system, namely, (1) W-Mo deposits related to Silurian granite; (2) Sn-Nb-Ta deposits related to late Triassic granite; (3) W-Mo deposits associated with Triassic granite; (4) W-Sn deposits related to Middle-Late Jurassic granite; (5) W-Sn deposits associated with Cretaceous granite; (6) Uranium deposit related to Indosinian granite. The formation of these deposits is closely related to the different periods of tectonic-magmatic evolution, and associated with the syn-collision compressional setting and/or post-collision extensional setting. |
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| Keywords: | Caledonian granite Indosinian granite Yanshanian granite W-Sn-Mo-Nb-Ta Mineralization Northeast Guangxi South China |
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