青海大柴旦地区白云滩金矿床地质特征及找矿前景

Geological characteristics and prospecting prospect of Baiyuntan gold deposit in Dachaidan Area,Qinghai Province

着重分析了青海大柴旦地区白云滩金矿床的地质特征和找矿前景,结果表明:白云滩金矿床明显受控于北西—南东向断裂破碎带,矿体以似层状、脉状产出,矿体空间展布特征与区域构造迹线一致;矿石类型较单一,但矿物组合较复杂,载金矿物以黄铁矿为主;Ⅰ和Ⅲ号含金蚀变带与地球化学异常具有良好的空间耦合关系,具有Au、Cu、Ag元素含量高值点多且连续的特征,显示出矿区巨大的找矿前景。

This paper focused on the analysis of the geological characteristics and prospecting prospects of Baiyuntan gold deposit in Dachaidan Area,Qinghai Province.The results showed that Baiyuntan gold deposit is obviously controlled by the NW-SW trending fracture zone.The ore bodies appear in layer-like and vein-like forms,and the spatial distribution characteristics of the ore bodies are consistent with the regional tectonic trace.The ore type is simple,but the mineral assemblage is complex,and the gold bearing minerals are mainly pyrite.TheⅠandⅢZi-No gold-bearing alteration zones have a good spatial coupling relationship with geochemical anomalies,and are characterized by high content of Au,Cu and Ag elements and many continuous value points,indicating a great ore prospecting prospect in the mining area.