吉南复兴村金矿床地质特征及成因  

Geological Features and Genesis of Fuxingcun Gold Deposit in Southern Jilin

作　　者：刘智杰[1] 王晓勇[1] 汤鹏飞[1] 

机构地区：[1]武警黄金第三支队,黑龙江哈尔滨150069

出　　处：《黄金科学技术》2009年第3期6-11,共6页Gold Science and Technology

基　　金：武警黄金指挥部"吉林省通化县复兴村矿区岩金普查"项目(2006-04)资助

摘　　要：复兴村金矿床位于白山—老岭成矿带上,主要赋存于元古宇老岭群珍珠门组白云石大理岩中,矿体严格受NNE、NW向断裂构造破碎带控制。从矿体形态、产状、规模及品位,矿石类型、结构与构造,矿石矿物组成,矿化期次、矿化阶段的划分,围岩蚀变,成矿温度和成矿时代等方面论述了矿床的地质特征;主要控矿因素是地层、断裂构造和岩浆活动,其中断裂构造是最主要的控矿因素;通过对矿石硫同位素分析和成矿温度、成矿时代研究表明,金成矿物质来源于地层和岩浆岩,成矿温度为中低温,成矿时代为燕山期。所以认为该矿床属燕山期中低温热液断裂构造破碎带蚀变岩型金矿床。在此基础上,归纳并提出了主要找矿标志,以期为该区寻找同类型金矿床提供一定的帮助。Fuxingcun gold deposit is located in the Baishan-Laoling metallogenic belt, it mainly occurs in the dolomite marble of proterozoic Laoling group Zhenzhumen formation, the ore-body is controlled by NNE, NW fractured shatter zones. According to the shape, occurrence, size and grade of the orebody, ore types, mineral association and fabric, division of the mineralization periods and stages, wall rock alteration, temperature and epoch of metallogenic, We discuss the geological features of Fuxingcun gold deposit. The main ore-controlling factors are stratum, fracture structures and magma activites, and the fracture structures is the most important ore-controlling factor. Based on the analysis of S isotopes and the study of mineralization temperature and epoch, it is found that the metallogenic elements are from stratum and magmatic rock, the temperature of mineralization is meso-epithermal,the mineralization time is Yanshan epoch. It is a meso-epithermal fractured shatter zones altered rock type gold deposit of Yanshan epoch. At the same time, the paper has summed up the main prospecting criteria, it will provide help for seaching this type gold deposit in this area.

关 键 词：复兴村金矿 地质特征 控矿因素 矿床成因 找矿标志 吉林 

分 类 号：P618.51[天文地球—矿床学]