辽宁张家堡—穆家岭铅锌金银多金属矿地质特征及成因探讨  

Geological characteristics and genesis of Zhangjiapu-Mujialing lead-zinc-gold-silver polymetalic deposit in Liaoning

作　　者：蓝海洋 

机构地区：[1]辽宁省冶金地质勘查局地质勘查研究院,鞍山114038

出　　处：《矿产勘查》2015年第6期709-714,共6页Mineral Exploration

摘　　要：张家堡—穆家岭铅锌金银多金属矿位于华北地台(I级)辽东台背斜(II级)营口宽甸古隆起(III级)中部,矿区内赋存有张家堡石墨矿(I矿带)、张家堡铅锌银矿(II矿带)和杖杆沟银矿(III矿带)。文章通过对矿区地质特征、矿体赋存地层、产出特点及成矿物质来源的初步分析,认为该区铅锌金银矿床是多成因,多期次叠加、改造的产物,早期的区域变质作用为矿床提供了成矿的物质来源,后期的热液作用提供了部分矿质来源,经过热液变质和动力变质作用的改造,造成含矿热液部分成矿元素的进一步富集,形成铅、锌、金、银矿体或矿化富集区。同时,区域变质作用也使地层中的碳质物局部富集而形成石墨矿。The Zhangjiapu-Mujialing Pb-Zn-Au-Ag polymetallic deposit is located in the central part of Yingkou Kuandian palaeo uplift within eastern Liaoning anticline in the North China platform.In the deposit area, the Zhangjiapu graphite mineralization zone （No. I belt）, Zhangjiapu lead-zinc-silver mineralization zone（No.2 II belt） and Zhanggangou silver mineralization zone （No.3 III belt）. Based on the preliminary analysis of the geological characteristics, ore-bearing strata,distribution characteristics and ore-forming material sources, it is believed that the Pb-Zn-Au-Ag deposit was formed by multi-stages superposition and transformation, therefore, the deposit genesis is multi-genetic.The ore-forming elements were mainly provided by the early regional metamorphism, partly by later stage hydrothermal activity. By the transformation of hydrothermal metamorphism and dynamic metamorphismore-forming elements were partly enriched, finally the lead-zinc-gold-silver deposit or ore concentration area were formed. Meanwhile, the graphite deposit was formed by the regional metamorphism due to the local enrichment of carbonaceous matter in the strata.

关 键 词：张家堡—穆家岭 铅锌金银多金属矿 地质特征 辽宁 

分 类 号：P618.42[天文地球—矿床学] P618.43[天文地球—地质学]