滇西普朗铜金矿成矿地质条件及找矿潜力初探  

Metallogenic and geological condition and potential for further prospecting in Pulang copper-gold deposit,Western Yunnan province

作　　者：李志鹏 赵高举 曾红坤 吴练荣 翟建军 杨栋 李亮 LI Zhipeng;ZHAO Gaoju;ZENG Hongkun;WU Lianrong;ZHAI Jianjun;YANG Dong;LI Liang(Diqing Nonferrous Metal Co. Ltd., Shangrila 674400, Yunnan, China;Yunnan Copper of Mineral Resources Exploration Co., Ltd., Kunming 650051, China)

机构地区：[1]云南迪庆有色金属有限责任公司,云南香格里拉674400 [2]云南铜业矿产资源勘查开发有限公司,昆明650051

出　　处：《地质找矿论丛》2020年第3期273-278,共6页Contributions to Geology and Mineral Resources Research

基　　金：中国铜业有限公司重点科技计划项目(编号:20190101);迪庆有色科研合作项目(编号:2019合字第1号)联合资助。

摘　　要：普朗铜矿床是格咱岛弧多金属成矿带的印支期代表产物,属产于石英二长斑岩、石英闪长玢岩内接触带的超大型斑岩型铜(金)矿床,受复式斑岩体控制作用显著;但矿区东部大脉状铜矿体、南部金矿(化)体则严格受控于断裂构造,明显具后期成矿作用的叠加。笔者通过对矿区外围北矿段、东矿段和南矿段矿床地质特征、矿体特征、矿石组构特征的深入研究,结合区域成矿地质背景,认为普朗铜(金)矿床是由多期次、多成因、多成矿阶段叠加而成的次火山热液矿床,与印支期复式斑岩体与断裂构造、节理裂隙与矿床的形成关系密切;北部外围深部具有斑岩型铜矿的良好潜力,而东矿段深部、南矿段深部则分别是寻找大脉状铜矿、金矿的有利找矿靶区。Pulang Cu-Au deposit is a typical epresentarive in Gezan island-arc polymetallic metallogenic belt.It is a super-large porphyry deposit occurring at the inner contact-zone of quartz monzonite porphyry and quartz diorite porphyrite and controlled significantly by a complex porphyry body.However,the Cu-ore dyke in the east mining district and gold mineralization orebody in the south dittrict are strictly controlled by fault and overprinted with clear late mineralization.Geological features,geological characteristics of orebody and ore texture characteristics of the north,east and south the surrounding area of the mining district are studied in detail and combined with the regional geological background the article puts forward a view on ore-genesis.The Pulang copper(gold)deposit is a multi-genetic subvolcanic-hydrothermal deposit overprinted by multi-stag mineralization.It is closely related to Indosinian porphyry,fault structure,joint fissure.It is potential to prospect porphyry Cu deposit to depth of the north surrouunding area,Cu ore dyke and Au deposit to depth of the east and south surrounding areas.

关 键 词：普朗铜金矿 成矿要素 找矿标志 成矿远景 云南省 

分 类 号：P618.41[天文地球—矿床学]