河南省桐柏县刘山岩铜锌矿带鸭子口矿区地质、地球物理、地球化学特征  

Geological,Geophysical and Geochemical Characteristics of Yazikou Deposit of Liushanyan Copper-Zinc Ore Belt,Tongbai County,Henan Province

作　　者：代元平[1] 

机构地区：[1]河南省地质矿产勘查开发局第三地质调查队,河南信阳464000

出　　处：《华南地质与矿产》2009年第3期59-63,共5页Geology and Mineral Resources of South China

基　　金：中国地质调查局地质大调查项目(编号:199710200105)资助

摘　　要：鸭子口铜锌矿属刘山岩矿区的西延部分,是分布于刘山岩挤压带内的同类型铜锌矿点。矿体赋存于纹层状硅质-钠长石岩层中,自矿体中心向边缘存在黄铁矿-黄铜矿-方铅矿-重晶石-石英的相对分带。激电异常表现出高极化率低电阻率的电性特征,与矿区铜矿(体)石具有相同的电性特征。各主要元素异常中,Cu,Zn套合较好,呈带状分布,反映了区内构造、蚀变及矿化特征。本文着重对成矿地质背景,地球物理特征和地球化学特征进行总结,以期为该类型矿床的普查评价提供借鉴。Yazikou copper - zinc deposit is the west extension of Liushanyan ore belt, both of which have got the similar copper - zinc mineralization. The ore - body is hosted by laminated silica - albite rocks, and there is existing sequence of pyrite, chalcopyrite, galena, barite, to quartz from the center to margin of the ore - body. The induced polarization anomaly is character of high in chargeability and low in electrical resistivity which is consistent with the electrical property of copper ore - body. The geochemical anomaly of copper and zinc are matched perfectly, and with zonal arrangement, which reflect the structure, alteration and mineralization characteristics of the regional area. Our work is to summarize the geological, geophysical and geochemical characteristics of this deposit, which are useful in the prospecting of the similar ore deposit.

关 键 词：挤压带 强应变带 激电异常 异常评序 鸭子口矿区 

分 类 号：P618.41[天文地球—矿床学] P618.43[天文地球—地质学]