| 陈可,刘忠法,邵拥军,刘清泉.铜陵矿集区冬瓜山铜(金)矿床成因分析[J].矿产勘查,2021,12(5):1152-1160 |
| 铜陵矿集区冬瓜山铜(金)矿床成因分析 |
| Genesis of Dongguashan copper-gold deposit in Tongling ore concentration area, Anhui |
| 投稿时间：2021-02-08 |
| DOI： |
| 中文关键词: 矿床地质特征 成矿地质条件 矿床成因 冬瓜山铜(金)矿床 |
| 英文关键词: geological characteristics of the deposit ore-forming geological condition genesis of deposit Dongguashan copper-gold deposit |
| 基金项目:本文受国家自然科学基金项目(41702078)、湖南省研究生科研创新项目(CX20200235)、中南大学研究生科研创新项目(2020zzts650)资助。 |
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| 中文摘要: |
| 冬瓜山矿床是安徽铜陵矿集区内的大型铜(金)矿床，赋存于中 —上石炭统黄龙组和船山组( C2+3)地层中，主矿体受地层、褶皱及层间滑脱带控制，呈层状产出。长期以来，人们对冬瓜山矿床的成因认识还存在较大的争议。本文从地层、构造、岩浆岩等方面对冬瓜山矿床的成矿地质条件进行了分析，认为围岩灰岩、砂岩及大理岩中 Cu含量低，不具备提供成矿物质的能力，而岩体中 Cu含量高于克拉克值近两个数量级，具有提供成矿物质的能力；构造上青山脚岩体控制了斑岩型矿体的产出，青山背斜和层间滑脱构造控制了主矿体的产状及规模；提出冬瓜山矿床为与燕山期岩浆侵入有关的斑岩 -矽卡岩型铜(金) 矿床。 |
| 英文摘要: |
| The Dongguashan deposit is the largest copper-gold deposit in Tongling ore concentration area and occurs in Huanglong and Chuanshan formations of middle-upper Carboniferous The main orebody is controlled by strata,fold and interlayer-glide structures For a long time,there is a dispute about the genesis of the Dongguashan copper-gold deposit In view of this scienti c problem,this paper analyzed the metallogenic geological conditions of the Dongguashan deposit from three aspects as stratum,structure and magmatic rocks It is considered that the content of Cu in limestone,sandstone and marble is low and can not provide ore-forming materials,while the content of Cu in rock mass is nearly two orders of magnitude higher than Clark value,so they have ability to provide ore-forming materials Structurally,the Qingshanjiao rock mass controls the occurrence of porphyry orebodies,and the Qingshan anticline and interlayer detachment structure control the occurrence and scale of main orebodies This paper proposed that the Dongguashan deposit is a porphyry-skarn copper-gold deposit which is related to Yanshanian magmatic intrusion |
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