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现代矿业 2019, Vol. 35 Issue (04) :42-45    DOI:
地质·测量 最新目录 | 下期目录 | 过刊浏览 | 高级检索 << Previous Articles | Next Articles >>
滇东南西畴曼龙沟金矿成矿规律及矿床成因
唐昆,冯志红,刘明江,余璨*
中国有色金属工业昆明勘察设计研究院有限公司
Genesis and Metallgenic Regularity of Manlonggou Gold Deposit in Xichou County,Southeast Yunnan Province
Tang Kun,Feng Zhihong,Liu Mingjian,Yu Can*
Kunming Prospecting Design Institute of China Nonferrous Metals Industry Co.,Ltd.

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摘要 曼龙沟金矿位于滇东南文山—富宁褶皱束西畴拱凹,是与加里东不整合接触面关系密切的金矿床。结合区域成矿背景、矿区地质工作成果,讨论了矿区及矿床地质特征,归纳总结了矿床成矿规律,并结合地表及坑、钻探工程验证成果,进一步分析了找矿方向。研究表明:①矿区地质构造发育,导矿构造、容矿构造具有显著的多级性、一致性和继承性特征,大堡滑覆体严格控制着矿体产出与空间展布,近SN向断裂(F15、F16)、NWW向断裂(F17)与金矿化关系密切;②矿床层控性显著,成矿作用受构造活动控制,是我国滇东南地区典型的微细粒型热液金矿床;③强烈的围岩蚀变(硅化、黄铁矿化、毒砂化)及不整合面是有利的找矿标志,滑覆面揭露的金矿层是寻找高品位金矿(化)体的有利部位。
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唐昆
冯志红
刘明江
余璨
关键词金矿   矿床成因   成矿规律   找矿标志   找矿方向     
Abstract: Manlonggou Gold Deposit in Southwest Yunnan Province is located in Xichou arch—concave of Wenshan—Fining folded belt,it belongs to the one that is mainly in close relations with unconformity surface of Caledonian.Based on the regional metalogenic geological background and geological working results of mining area,the geological characteristics of deposit are discussed,the metallgenic law is summarized,besides that,the prospecting direction of the mining area is studied based on the ground engineering verification results and pit drilling engineering verification results.The research results show that:①the ore—guiding structures and ore—hosting structures in the mining area are well developed and characterized by multilevel,consistency and inheritance,and the occurrence and spatial distribution is strictly controlled by Dabao gliding—nappe,the SN—trending fractures and NWW—trending fracture have close relationship with gold mineralization;②the mineralization of Manlonggou Deposit is strictly controlled by tectonic activity,which characterized by strata—bound type,it belongs to the one that carlin—type hydrothermal deposit in Southeast Yunnan Province;③the strong wall—rock alteration (silicification,pyritized and arsenopuritization) and unconformity surface are the favorable prospecting criterias,and the gold ore seam which exposed by surface of gliding—nappe can be ragarded as the favorable position of rich gold orebodies.
KeywordsGold deposit   Deposit genesis   Metallgenic regularity   Prospecting criteria   Prospecting direction     
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* 云南省科技惠民计划(编号:2013CA019);云南省科技计划项目(编号:2014IB001)。

引用本文:   
唐昆, 冯志红, 刘明江, 余璨.滇东南西畴曼龙沟金矿成矿规律及矿床成因[J]  现代矿业, 2019,V35(04): 42-45
TANG Kun, FENG Zhi-Hong, LIU Ming-Jiang, YU Can.Genesis and Metallgenic Regularity of Manlonggou Gold Deposit in Xichou County,Southeast Yunnan Province[J]  Modern Mining, 2019,V35(04): 42-45
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