湘南地区银矿类型划分及找矿方向浅析

Types and prospecting of silver deposit in southern Hunan Province

应用区域构造成矿分析和成矿系列理论,在分析研究区域地质构造、银矿床成因及时空分布规律的基础上,划分了湘南银矿床成因类型,指出湘南地区存在与花岗岩类有关的岩浆热液矿床( )、与一定地质时期和地层单位有关的层控矿床( )和与表生成矿作用有关的风化淋滤矿床( )三大类银矿床;其中 类型银矿床占主导地位, 类型银矿床仅在局部产出, 类型银矿暂不具工业意义。同时,圈出了东坡-许家山、坪宝、铜山岭-后江桥3个找矿远景区。

Based on study of regional geological background,genesis and distribution regulation,silver deposits in Southern Hunan Province are divided into magmatichydrothermal type(Ⅰ) related to granitoids,stratacontrolled type(Ⅱ),weatheringinfiltration type(Ⅲ),among which the magmatichydrothermal type is the most important,stratacontrolled type is controlled by some special strata and weatheringinfiltration type currently shows no industrial significance.Three prospecting regions for silver deposits in the studied area are also suggested,including the DongpoXujiashan,Huangshapingbaoshan and TongshanlingHoujiangqiao area.