云南省弥渡县二郎铜矿地质特征及找矿标志  

Geological feature and prospecting criteria of Erlang Cu deposit in Midu, Yunnan

作　　者：杨宇 王书宇 廖志凯 张兴桐 李灿清 YANG Yu;WANG Shu-Yu;LIAO Zhi-Kai;ZHANG Xing-Tong;LI Can-Qing(No.209 Geological Survey,Geological Bureau of Yunnan Nuclear Industry,Kuming 650000,China;Yunnan Three Rare Mineral Resources Exploration and Evaluation Engineering Research Center,Kunming 650032,China)

机构地区：[1]云南省核工业二〇九地质大队,云南昆明650000 [2]云南省三稀矿产资源勘查评价工程研究中心,云南昆明650032

出　　处：《世界有色金属》2024年第10期73-75,共3页World Nonferrous Metals

摘　　要：区内铜矿体即赋存于白垩系上统南新组下段(K_(2)n^(1))地层中的近南北向构造破碎蚀变带内,严格受构造控制。矿体呈似层状、透镜状产出于破碎蚀变带内,矿体产状与围岩及破碎蚀变带产状均不一致,沿走向及倾向均呈波状弯曲。该区铜矿为氧化型矿石,矿石结构主要有砾状结构、砂状结构,主要构造有块状构造、砾状构造;主要伴生有用组分为Ag。初步认为本区铜矿床成因类型应为构造热液型铜矿。具有一定找矿前景。The copper ore body in the area occurs in the near-north tectonic erosion zone in the lower section of nanxin Formation(K_(2)n^(1))of the Upper Cretaceous system,and is strictly controlled by tectonics.The ore body is produced in the shape of layer and lens in the erosion zone,and the ore body is not consistent with that of surrounding rock and erosion zone,and bends along the direction and tendency.The copper ore in this area is oxidized ore,and the ore structure mainly has gravel structure,block structure and gravel structure;the main associated useful component is Ag.It is preliminarily believed that the origin type of copper deposit in this area should be structural hydrothermal copper deposit.It has a certain prospecting prospect.

关 键 词：二郎铜矿 热液型矿床 找矿标志 云南弥渡 

分 类 号：P618.41[天文地球—矿床学]