粤西河台金矿成矿构造系统简析  

A brief analysis of the metallogenic structural system of Hetai gold deposit in western Guangdong

作　　者：黄小荣 HUANG Xiao-rong(The fifth Geological Brigade of Guangdong Geological Bureau,Zhaoqing 526040,China)

机构地区：[1]广东省地质局第五地质大队,广东肇庆526040

出　　处：《世界有色金属》2021年第16期86-87,共2页World Nonferrous Metals

摘　　要：河台蚀变糜棱岩型金矿是粤西地区最为重要的金矿类型。河台金矿其金矿化、金矿体严格受构造(蚀变糜棱岩带)控制。糜棱岩通常形成于震旦系C组地层之中。糜棱岩带是河台金矿的主要导矿构造、也是主要的容矿构造。根据构造尺度的不同,可将河台地区金矿成矿构造系统细分为区域构造交汇部位、糜棱岩带、糜棱岩核(蚀变糜棱岩)和糜棱岩带中S-C面理四级构造控矿单元。对河台地区成矿构造系统方面的研究有助于指导矿床深部及外围的地质找矿。Hetai altered mylonite type gold deposit is the most important type of gold deposit in western Guangdong.The gold mineralization and gold ore body of Hetai gold deposit are strictly controlled by structure (altered mylonite belt).Mylonite is usually formed in Sinian C formation.Mylonite belt is not only the main ore conducting structure,but also the main ore bearing structure of Hetai gold deposit.According to different tectonic scales,the gold metallogenic tectonic system in Hetai area can be divided into four structural ore controlling units:regional tectonic intersection,mylonite belt,mylonite core (altered mylonite) and S-C foliation in mylonite belt.The study on the metallogenic tectonic system in Hetai area is helpful to guide the geological prospecting in the deep and periphery of the deposit.

关 键 词：河台金矿 成矿构造系统 糜棱岩 找矿指导 

分 类 号：P618.51[天文地球—矿床学]