Geological characteristics and prospecting direction of the Yidinan gold deposit in the west Qinling orogen
The Yidinan gold deposit,located in the Gangcha-Ashijia gold ore-concentrated area in the west Qinling orogen,is a new-ly identified gold deposit of considerable scale.To further expand the deposit,this study preliminarily analyzes its basic geological char-acteristics and points out the prospecting directions based on previous geological achievements and data.The results indicate that the ore bodies are hosted within the Dewulu quartz diorite and its proximal SN-oriented fracture and contact zones.They are primarily controlled by fractured and altered zones along SN-oriented structural faults.The ore type is predominantly fractured and altered rock type,with gold mainly occurring within sulfides associated with alterations such as silicification,sericitization,pyritization,and arsenopyritization in the surrounding wall rocks.The enrichment of gold mineralization is directly correlated with alteration intensity and sulfide content,resembling typical orogenic gold deposits.Based on existing data,the deep marginal gold mineralization in fractured and altered zones remains inadequately controlled,indicating promising prospects for further exploration.
万方数据
维普
