Geological Characteristics and Genesis of Qianggou Gold Deposit in Penglai City,Shandong Province
The research area is located on the east side of Tanlu fault,belonging to the Zhaoping-Laizhou gold met-allogenic belt of Jiaodong peninsula.The Jiaodong rock group is the main source layer of gold deposits in the are-a.The granodiorite body is developed in this area,and its Au content is 7 times that of the standard granodiorite body.When the rock body was formed,the posttemporal hydrothermal fluid containing a lot of gold was the main material source for the formation of Jiaodong gold deposit,and the metallogenic geological conditions are good.Based on the structure of the ore,mineral symbiotic associations,and their interspersed relationships,the study of mineralization can be divided into the quartz-coarse grained pyrite stage,the gold-quartz-fine grained pyrite stage,and the sericite-calcite stage.The first two stages are the main stages of gold enrichment.The surrounding rock of the Qianggou gold deposit has weak alteration,and the ore types are mainly quartz vein type and altered rock type.The deposit is a post magmatic hydrothermal filled metasomatic type.The contact zone between the granite diorite and the Jiaodong rock group,as well as the gold and quartz veins in the NNE trending fault zone,are impor-tant prospecting indicators in the study area.
Qianggou gold depositdeposit characteristicsgenesis of deposit
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