摘要
萍乡市麻山钴矿是近几年发现的具有较大潜力的钴多金属矿床,区域上属萍乐坳陷带西段,具多层次大型构造叠加的成矿地质背景。经野外地质调查和钻孔验证,矿区发现厚大钴矿体,矿体视厚度为53.50 m,真厚度为34.39 m,平均Co品位为0.05%,最高Co品位为0.15%。矿体主要赋存在石炭系下统杨家源组与三叠系上统安源组的不整合面上的构造角砾岩及砂砾岩中。通过综合分析矿床成因,它为有构造破碎带热液环流蚀变参与的氧化淋滤沉积矿床。根据成矿地质特征,建立四位一体的成矿模型指导找矿,为该区找矿提供理论依据。
The Mashan Cobalt Ore in Pingxiang City is a cobalt polymetallic deposit with great potential discovered in recent years,it belongs to the western section of the Pingle Depression and has a multi-level and large-scale tectonic superimposed mineralization geological background.After field geological investigation and drilling verification,a thick and large cobalt ore body is discovered in the mining area,the apparent thickness of the ore body is 53.50 m,the true thickness is 34.39 m,the average Co grade is 0.05%,and the highest Co grade is 0.15%.The ore body mainly exists in the structural breccia and sandstone on the unconformity surface of the Yangjiayuan Formation in the Lower Carboniferous and Anyuan Formation in the Upper Triassic.Through comprehensive analysis of the genesis of the deposit,it is determined that it is an oxidized leached sedimentary deposit with the participation of tectonic fracture zone hydrothermal circulation and alteration.Based on the geological characteristics of mineralization,a four in one mineralization model is established to guide mineral exploration,providing a theoretical basis for mineral exploration in the area.
作者
李凡顺
朱合胤
况二龙
姜宝亮
吴远亮
赖四鸿
LI Fanshun;ZHU Heyin;KUANG Erlong;JIANG Baoliang;WU Yuanliang;LAI Sihong(The First Geological Brigade of Jiangxi Geological Bureau,Nanchang 330200,China)
出处
《中国资源综合利用》
2024年第1期92-96,共5页
China Resources Comprehensive Utilization
关键词
麻山钴矿
成矿地质特征
矿床成因
萍乡市
Mashan Cobalt Ore
geological characteristics of mineralization
deposit genesis
Pingxiang City
