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现代矿业 2019, Vol. 35 Issue (04) :38-41    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 >>
滇东北茂租铅锌矿床地质特征及成矿机制
彭一,吴云辉*
中国有色金属工业昆明勘察设计研究院有限公司
Metallogenic Mechanism and Geological Characteristics of Maozu Lead—zinc Deposit in Northeast Yunnan Province
Peng Yi,Wu Yunhui*
Kunming Prospecting Design Institute of China Nonferrous Metals Industry Co.,Ltd.

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摘要 茂租铅锌矿床总体位于扬子板块西缘的昆阳裂谷东缘,是川滇黔Pb—Zn多金属成矿域上滇东北矿集区的大型矿床。阐述了成矿地质背景、矿床地质特征,深入研究了赋矿层位与矿化规律,厘定了矿床成因机制。研究表明:①矿区继承了区域地质特征,出露地层丰富,矿(化)体主要赋存于上震旦统灯影组中,含矿岩性为白云岩;②矿区构造格局复杂,以NE向断裂控矿作用最为显著,次级断裂构造对矿化有着富化作用;③矿床发育似层状、脉状及不规则状3种矿(化)体,其中似层状矿体产状稳定、形态规则、规模厚大,赋存于背斜轴部/翼;④赋矿地层、围岩岩性、矿区褶皱构造及派生的次级构造(羽状裂隙)是富集成矿的关键因素,矿床总体属上层矿、下层矿及脉状矿“三位一体”的热水—沉积型矿床。
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彭一
吴云辉
关键词铅锌矿床   矿床地质特征   成矿机制     
Abstract: Maozu Lead—zinc Deposit is located in the eastern margin of Western Yangtze Para—platform,which is a large deposit of northeast Yunnan ore—concentrating area in Sichuan—Yunnan—Guizhou Pb—Zn metallogenic province.Based on the previous study results,the metallogenic geological background geological characteristics of the deposit,the ore—occurred strata are analyzed,the metallogenic regularity is discussed,besides that,the deposit mechanism is studied.The study results show that:①Maozu mining area has inherited the regional geological characteristics,the outcrop layer is abundant,the orebodies (mineralized bodies) are occurred in Dengying Formation of Upper Sinian,and the ore—bearing rock is dolomite;②the tectonic framework of the mining area is complex,orebodies are strictly controlled by north—east structures,the secondary faults have enrichment effect on mineralization;③the deposit developed three kinds of orebody (mineralization),including stratiform—like orebody,vein orebody and irregular orebody,the stratiform—like orebody has occurred in axis/alar part,which characterized by stable occurrence,regular morphology and thick—large scale,and the orebody has occurred anticlinal shafts/wings;④the ore—hosting strata,surrounding rock lithology,fold structure and secondary tectonic (plumose fractures) are the significant ore—controlling factors,which proved that Maozu Lead—zinc Deposit belongs to the trinity hydrothermal—sedimentary type deposit.
KeywordsLead—zinc deposit   Metallogenic geological characteristics   Metallogenic mechanism     
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* 十一五”国家科技支撑计划项目(编号:2006BAB01B05)。

引用本文:   
彭一, 吴云辉.滇东北茂租铅锌矿床地质特征及成矿机制[J]  现代矿业, 2019,V35(04): 38-41
PENG Yi, WU Yun-Hui.Metallogenic Mechanism and Geological Characteristics of Maozu Lead—zinc Deposit in Northeast Yunnan Province[J]  Modern Mining, 2019,V35(04): 38-41
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