CAJ | 학술논문

对贵州习水谢家坝铅锌矿床的地质特征、矿石特征开展综合分析，并根据“密西西比型”矿床的主要识别标志进行对比分析，探讨谢家坝铅锌矿床成因类型，并总结找矿标志，为下一步找矿勘查提供理论依据。本区铅锌矿体赋存于震旦系上统灯影组上部白云岩地层中，沿着桑木场背斜轴部方向产出，严格受地层、断层裂隙控制，以铅锌矿石为主，伴生重晶石和萤石，围岩蚀变主要为黄铁矿化、弱白云石化、强重晶石化、弱硅化4种类型，其成矿模式主要为流体运移－混合模式，找矿标志主要为地层标志、构造标志、地表露头矿化标志。其地质特征、矿床特征、矿石特征与扬子地块中川滇黔地区灯影组地层铅锌矿床特征进行对比，对比结果显示谢家坝铅锌矿床成因类型为“密西西比型”矿床，即 MVT 型矿床。
대귀주습수사가패연자광상적지질특정、광석특정개전종합분석，병근거“밀서서비형”광상적주요식별표지진행대비분석，탐토사가패연자광상성인류형，병총결조광표지，위하일보조광감사제공이론의거。본구연자광체부존우진단계상통등영조상부백운암지층중，연착상목장배사축부방향산출，엄격수지층、단층렬극공제，이연자광석위주，반생중정석화형석，위암식변주요위황철광화、약백운석화、강중정석화、약규화4충류형，기성광모식주요위류체운이－혼합모식，조광표지주요위지층표지、구조표지、지표로두광화표지。기지질특정、광상특정、광석특정여양자지괴중천전검지구등영조지층연자광상특정진행대비，대비결과현시사가패연자광상성인류형위“밀서서비형”광상，즉 MVT 형광상。
This paper makes a comprehensive analysis of geological characteristics,ore characteristics of the Xie Jiaba pb -zn deposit of Guizhou Province.According to the “Mississippi ” type ore deposits on the identification of the comparison and analysis,this paper also explores the Xiejiaba deposit genetic type,and summarizes the ore -prospecting criteria,so as to provide a theoretical basis for the prospecting exploration in the future.The pb -zn orebody occurs in the Dengying group on the sinian system in the upper part of the dolomite strata,along the Shangmuchang field output anticline axis direction,and is strictly controlled by strata, fault.It is mainly lead and zinc ore,barite and fluorite associated.The wall rock alteration includes four types, i.e.pyrite,strong weak dolomitization,barite,weak silicification.As to the main metallogenic model for fluid migration -mixed mode, prospecting marks are mainly stratigraphic, structural marks, surface outcrop mineralization.It is the geological characteristics,ore deposit,ore characteristics and Sichuan -Yunnan -Guizhou region group of Yangtze massif,comparing with the formation characteristics of pb -zn deposit.The comparison results show that the Xiejiaba pb -zn deposit genetic types is “Mississippi”type ore deposit,namely the MVT type deposit.