福建闽侯大池—湖头金矿地质特征及远景分析

Geological Characteristics and Prospect Analysis of Dachi-Hutou Gold Deposit in Minhou County,Fujian Province

闽侯大池—湖头金矿与早白垩世杉村火山机构相关,属火山热液型矿床。金矿围岩为侏罗系南园组第二段流纹岩、流纹质晶屑、玻屑、岩屑凝灰岩及流纹质晶屑熔结凝灰岩。金矿体产状与杉村外围火山环状构造产状一致。金矿体分布范围和土壤异常Au-Ag-Cu-Pb-ZnAs元素套合较好。对成矿地质条件有利,找矿前景良好。

Dachi-Hutou gold deposit belongs to volcano hydrothermal type deposit related to early Cretaceous Shancun volcano agency. Gold mineralization is rhyolite of Jurassic Nanyuan for- mation second sections, rhyolitic crystal chips, glass crumbs, lithic tuff and rhyolitic crystal chip ignimbrite. The gold orebody attitude is the same of the volcano ring structure occur- rence outside Shancun. Gold orebody distribution overlying is good with elements such as Au, Ag, Cu, Pb, Zn, As of the soil anomaly, which favorable to the ore-forming geolog- ical conditions with a good prospecting perspective.