| 藏东“三江”地区热液型铀矿成矿条件与找矿方向 |
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| 引用本文： | 陈友良,王四利,杜小林,蔡兴琪.藏东“三江”地区热液型铀矿成矿条件与找矿方向[J].铀矿地质,2012(5):257-264,280. |
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| 作者姓名： | 陈友良 王四利 杜小林 蔡兴琪 |
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| 作者单位： | [1]成都理工大学地学与核技术重点实验室,四川成都610059 [2]核工业280研究所,四川广汉618300 |
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| 基金项目： | 中国核工业地质局铀矿地质生产中科研课题“藏东三江北段热液型铀矿成矿条件和找矿前景研究”. |
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| 摘 要： | 文章从大地构造背景与基底成熟度、铀源条件、地层与岩性、岩体成因类型、岩体期次与空间配置、火山岩特征、控矿构造、围岩蚀变等方面对藏东"三江"地区热液型铀矿的成矿条件进行了分析,指出藏东"三江"地区存在形成热液型铀矿的基本地质条件,但总体成矿条件不是十分优越。在找矿方向上,应以寻找花岗岩内、外接触带型铀矿为主攻目标类型。
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| 关 键 词： | 热液型铀矿 成矿条件 藏东“三江”地区 |
The Metallogenic Condition and Prospecting Direction of Hydrothermal Uranium Deposit in Sanjiang Area of Eastern Tibet |
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| CHEN You-liang,WANG Si-li,DU Xiao-lin,CAI Xing-qi.The Metallogenic Condition and Prospecting Direction of Hydrothermal Uranium Deposit in Sanjiang Area of Eastern Tibet[J].Uranium Geology,2012(5):257-264,280. |
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| Authors: | CHEN You-liang WANG Si-li DU Xiao-lin CAI Xing-qi |
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| Institution: | 1. Key Laboratory of Applied Nuclear Techniques in Geosciences , Chengdu University of Technology, Chengdu, Sichuan 610059, China; 2. Research Institute No. 280, CNNC, Gnanghan, Sichuan 618300, China) |
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| Abstract: | This paper makes a systematic analysis of the metallogenic condition of hydrothermal type uranium deposit in Sanjiang area of Eeastern Tibet in the following perspects： geotectonic background, basement maturity, uranium source conditions, strata and lithology, genetic types of magmatic rock, forming time and space configuration of magmatic rocks, volcanic rock characteristics, ore-controlling structure and the wall-rock alteration etc. We explicitly point out that Sanjiang area bears the basic geological condition to form hydrothermal type uranium deposits, but the metallogenic conditions are not superior on the whole. The main targets should be the granite type deposit in the internal and external contact zone between pluton and the strata. |
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| Keywords: | hydrothermal type uranium deposit metallogenic condition Sanjiang area of Eastern Tibet |
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