陕西省宁陕县太山庙金矿床地质特征及找矿标志

GEOLOGY AND PROSPECTING INDICATOR OF TAISHANMIAO GOLD DEPOSIT IN NINGSHAN COUNTY,SHAANXI PROVINCE

太山庙金矿床位于胭脂坝岩体南接触带附近,近东西向的断裂带控制着含金构造带及金矿体的分布。矿区圈出3个金矿体,金矿物为微粒金,以包裹金为主。金矿石自然类型主要为黄铁矿化石英脉型、褐铁矿化石英脉型、黄铁矿化蚀变绢云母石英片岩型。地球化学异常、石英片岩、次级断裂、石英脉、褐铁矿化蚀变带等为本区主要找矿标志。

Taishanmiao gold deposit is located near the southern contact zone of the Yanzhiba rock body and the near east-west fault zones control the distribution of gold-bearing structural belts and gold bodies,in which three gold ore bodies are delineated and the minerals of gold are mainly composed of inclusion gold and microparticle gold.The natural types of gold ores are mainly pyritized quartz vein type,ferritized quartz vein type and pyritized altered sericite quartz schist type.Geochemical anomaly,quartz schist,secondary fault,quartz vein and limonitization alteration zone are the main prospecting indicators for gold deposition in this area.