安徽宁国石口金矿找矿前景——来自Ⅲ矿化带地球化学原生晕的证据

Prospecting potential of the Shikou gold deposit in Ningguo City,Anhui Province:evidence from primary dispersion halo characteristics of the ore section Ⅲ

石口金矿位于钦杭成矿带,是新近发现的具有一定找矿潜力的金矿。为进一步扩大找矿成果,该文通过对石口金矿Ⅲ-②矿体原生晕特征进行综合分析,并结合土壤地球化学测量成果,对找矿前景进行探讨。研究表明:主成矿元素Au与元素As、Ag、Sb密切相关,挥发份F可作为特征指示元素;Ⅲ-②矿体有可能为多期叠加形成,尾晕元素出现在原生晕分带序列前端,指示深部具有一定的成矿潜力。这些研究成果暗示Ⅲ矿化带沿走向及Ⅲ-②号矿体深部具有进一步找矿空间。

The Shikou gold deposit,a newly discovered gold deposit with prospect potential,is tectonically located in Qinzhou-Hangzhou metallogenic belt.In order to further expand the prospecting results,this paper analysis the primary halo characteristics of orebody No.Ⅲ-②,and discusses the prospecting potential of the Shikou gold deposit in combination of the results of soil geochemical measurement,.The research results show that:(1)As,Ag and Sb are strongly related to Au which is the main metallogenic element.F is a typical indicator element in this region;(2)the mineralization of orebody No.Ⅲ-② might have experienced multiple-stage superposition,and the rear halo elements appears in the front of axial zoning sequence of the primary dispersion halo,which indicate certain metallogenic potential in deep area.The authors hold that there might be a further ore-prospecting space along the strike of the ore section Ⅲ and in the deep of orebody No.Ⅲ-②.