Primary Study on Geological Features and Genesis of Axi Gold Deposit in Ruoergai, Sichuan Province
详细信息
- 责任者：Li Liangci (Benfen Mining Company of Sichuan Province ; Chengdu 610041 ; China) ; Lü Hejian
- 刊名：Jilin Geology
- 出版年：2013
- 卷期：32(1)
- 关键词：金矿 ; gold ores ; 四川 ; Sichuan Province
- 页码：p.26-31
- 图表：illus., 3 refs.
- 分类号：1001
- issnNo：ISSN1001-2427
- isbnNo：CN22-1099/P
摘要
based on study of Axi gold deposit geological features,ore-forming conditions and genesis,it is considered that the gold deposit occur in carbonate rock and fragmental rock of member No.3 and member No.4 Zhaga formation,middle Triassic series,namely: endocontact and exocontact of diorite body,which is controlled by NW strike fracture zone.Gold deposit mineralization belts have close relations with the diorite body,Axi gold ore body occur in the structural fracture zone of diorite body exocontact mainly.Orebody shape are veined,stratoid and phacoidal.Thickness and grade of ore body change little and mineralization is relatively homogeneous.Gold mineralization has relations with silicification,carbonation,chalcopyrite mineralization and pyritization Intermediate-acid magmatic activity and the fracture structure are the precondition of ore deposit formation.Genesis of deposit is magma and(post-igneous) hydrothermal replacement deposit.