河南省东山洼银多金属矿田地质特征及找矿前景  

Geological Characteristics and Prospecting Potential of Dongshanwa Ag-polymetallic Ore Field in Henan Province

作　　者：吕文献[1] Lyu Wenxian(No.1 Geological Exploration Institute of Henan Province)

机构地区：[1]河南省地质矿产勘查开发局第一地质勘查院

出　　处：《现代矿业》2018年第8期31-34,共4页Modern Mining

基　　金：中国地质调查局地质矿产调查项目(编号:1212011085331(2010);1212011120773(2011);1212011220500(2012))

摘　　要：河南省东山洼银多金属矿田的地质主体为二郎坪群,主要由早古生代弧后盆地环境的火山—沉积建造及早古生代以来的花岗岩类侵入体组成,矿田内蕴涵重要的银、金、铜、铅、锌等矿床。通过对含矿地层、岩体及矿田地质特征的研究,将东山洼银多金属矿田内的矿床划分为铜矿床、铅-锌-铜多金属矿床、金(银)矿床、铁(铜)型矿床等4类,该类矿产均产出于早古生代活动大陆边缘,受控于二郎坪群,同时与早古生代岩浆活动密切相关。在上述分析的基础上,总结了找矿标志,分析了找矿前景,对于该区后续找矿工作有一定的参考价值。The geological body of Dongshanwa Ag-polymetallic ore field is Erlangping Group,it is consists of the volcanic-sedimentary formation of the environment in the retroarc basin of Early Paleozoic and intrusion of granite from Early Paleozoic,the important deposits such as silver,gold,copper,plumbum and zinc are distributed in the ore field.Through the study of the characteristics of ore-bearing strata,rock mass and ore field,the deposit in Dongshangwa ore field is divided into copper deposit,Pb-Zn-Cu deposit,gold （silver） deposit and iron （copper） deposit.The deposits are distributed in the continental margin of Early Paleozoic and controlled by Erlangping Group,besides that,they are closely related to the magma activity of Early Paleozoic.Based on the above discussion results,the prospecting indicators of the ore field is summarized and the prospecting potential of the ore field is studied,so as to provide realiable reference for the further prospecting work in the ore field.

关 键 词：银多金属矿田 二郎坪群 地质特征 找矿标志 找矿靶区 找矿前景 

分 类 号：P618.205[天文地球—矿床学]