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滇黔桂微细浸染型金矿深部物源的稀土元素证据
引用本文:刘显凡,金景福,倪师军. 滇黔桂微细浸染型金矿深部物源的稀土元素证据[J]. 成都理工大学学报(自然科学版), 1996, 0(4)
作者姓名:刘显凡  金景福  倪师军
作者单位:成都理工学院地质学系,成都理工学院三系
摘    要:通过稀土元素配分模式的详细对比和地球化学演化规律的研究,论证了滇黔桂地区金矿的成矿物质主要来源于上地幔分异,但深部成矿流体在运移至地壳的成矿过程中不可避免地混染了部分地壳(地层)物质,从而在一定程度上掩盖了成矿物质的实质来源

关 键 词:微细浸染型金矿,稀土元素配分模式,地球化学演化,矿质来源,上地幔分异,混染,滇黔桂

AN EVIDENCE FOR REE GEOCHEMISTRY OF PLUTONIC MATERIALS ORIGINATING FROM CARLIN TYPE GOLD DEPOSITS IN THE YUNNAN GUIZHOU GUANGXI TRIANGLE AREA
Liu Xianfan Jin Jingfu Ni Shijun. AN EVIDENCE FOR REE GEOCHEMISTRY OF PLUTONIC MATERIALS ORIGINATING FROM CARLIN TYPE GOLD DEPOSITS IN THE YUNNAN GUIZHOU GUANGXI TRIANGLE AREA[J]. Journal of Chengdu University of Technology: Sci & Technol Ed, 1996, 0(4)
Authors:Liu Xianfan Jin Jingfu Ni Shijun
Affiliation:Chengdu Institute of Technology
Abstract:Based on the detailed contrast between the chondrite normalized REE patterns and REE geochemical evolution law, this paper proves that the ore bearing fluid for the Carlin type gold deposits in the area mainly originates from the upper mantle differentiation, and that the crust (strata) matter partly contaminates the plutonic ore bearing fluid during moving from mantle to crust. It is the contamination that conceals the genuine origin of the ore bearing fluid to a certain extent.
Keywords:Carlin type gold deposit  chondrite normalized REE pattern  geochemical evolution  origin of ore bearing materials  upper mantle differentiation  contamination  Yunnan Guizhou Guangxi
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