摘要
元谋地区某铜矿产于元古界普登组二段(Pt_(1)jp^(2))变质岩系内,矿体受近南北向断裂及其旁侧次级裂隙生成的糜棱岩化带控制。富矿岩性主要为阳起斜长透辉岩、石英斜长变粒岩,矿区内共有4个矿体,总体呈近南北向似层状分布,矿石均为硫化矿石,主要矿产为铜,伴生金。经过该区矿床地质特征分析,初步认为该铜矿床属于构造热液蚀变型铜矿床。
One copper mine in the Yuanmou area produced from metamorphic rocks of the second member of the Proterozoic Puden Formation(Pt1jp2),the ore body controlled by mylonitization generated by close south-north faults and its lateral secondary fissures.The rich ore lithology mainly is Yangqi plagioclase diopside and quartz plagioclase metagranulite,there are four ore bodies inside the mining area in total,it presents south-north near bedded distribution,ores are all sulphide ores,the main mineral is copper,the associated ore is gold.it's tentatively thought that the copper deposit belongs to tectonics hydrothermal alteration type copper deposit through the deposit geologic feature analysis.
作者
王晓芬
李波
孙云萍
WANG Xiaofen;LI Bo;SUN Yunping(Chuxiong Survey Institute,Yunnan Nonferrous Geological Bureau,Chuxiong,Yunnan 675000,China)
出处
《云南冶金》
2024年第3期19-25,共7页
Yunnan Metallurgy
关键词
地质特征
成因分析
铜矿床
热液蚀变
geologic feature
cause analysis
copper deposit
hydrothermal alteration
