Geological Characteristics,Metallogenic Regularity and Prospecting Criteria of Sunjiagou Gold-antimony Deposit in Gansu Province
Based on recent geological exploration data and taking the Au1 main ore body(Chengjiagou block)as the research object,the geological characteristics,ore-forming laws,controlling factors,and prospecting indicators of the Sunjiagou gold antimony deposit were summarized.There are 8 industrial ore bodies,7 low-grade ore bodies and 6 mineralized bodies in Sunjiagou gold-antimony deposit,among which Au 1 ore body and Sb2 ore body are the major ore bodies in the mining area.Au 1 orebody occurs in the structural fracture alteration zone of the first lithologic member(TL21)of the Upper Formation of Longwuhe Group.The orebody is controlled by the tectonic alteration zone.The ore-hearing lithology is mainly sandy,sandy calcareous SLATE with thin layer limestone and fine quartz veins.This research result can serve as a reference for future geological exploration and also provide assistance for the next step of mineral exploration work.
Sunjiagougeological characteristics of depositore-controlling factorprospecting mark