湖南安化凉伞岩金锑钨银异常查证区地质特征及找矿前景分析

Geological Characteristics and Prospecting Prospect Analysis of Liangsanyan Gold-Stibium-Wolfram-Silver Anomaly Verification Area in Anhua,Hunan

湖南安化凉伞岩金锑钨银地球化学异常区处于安化-浏阳构造带与桃江-城步构造带的复合部位,位于沩山岩体、芙蓉岩体的北西侧。根据其成矿地质背景、化探异常、矿化特征等特征,分析了其成矿机制及成矿模式。认为区内金银锑钨成矿与脆-韧性构造及花岗斑岩脉关系密切,在化探异常显著且成矿有利的构造部位可能存在较大规模的隐伏矿体,具有较好的找矿远景。

The Au-Sb-W-Ag geochemical anomaly of Liangsanyan in Anhua,Hunan Province,is located in the composite part of Anhua—Liuyang structural belt and Taojiang—Chengbu structural belt and it is in the northwest of Wei shan and Furong plutons.According to its metallogenic geological background,geochemical anomaly and mineralization characteristics,metallogenic mechanism and metallogenic model were analyzed.It is considered that Au,Ag,Sb and W mineralization is closely related to brittle ductile structure and granite porphyry vein in the area.There may be large-scale concealed ore bodies in the structural position with significant geochemical anomalies and favorable mineralization,which has a good prospecting prospect.