Geological Characteristics and Clues for Prospection of Yisishan Gold Deposit in Xiaoqinling
详细信息
- 责任者：Li Chongyang (School of Resource and Environment ; Henan Polytechnic University ; Jiaozuo 454003 ; China) ; Pang Xucheng
- 刊名：Mineral Resources and Geology
- 出版年：2013
- 卷期：27(2)
- 关键词：金矿 ; gold ores ; 小秦岭 ; Xiaoqinling Mountains
- 页码：p.122-125,143
- 图表：illus., 1 table, 18 refs.
- 分类号：1001
- issnNo：ISSN1001-5663
- isbnNo：CN45-1174/TD
摘要
Yisishan gold deposit is located at the eastern fringe of Xiaoqinling gold ore field,in which Yanshanian magmatic activity is intense and mineral-formation condition is superior.Ore-bearing wall rock is mesometamorphic rock series of Archaeozoic Taihua Group.There is a close relationship between gold ore body and ductile-friable structural zone.Gold-bearing sulfide quartz veins are the main ore body.Inflation and contraction,branching and compounding,pinching and recurring are common in this area.The primary wall rock alteration includes silicification,potassic alteration,chloritization and epidotization.Gold is closely related to polymetallic-sulphides(especially chalcopyrite and pyrite) and quartz veins.The result of lithogeochemical survey suggests that the ore(mineralized) body overlap the anomalies of primary haloes,and it is important to prospecting.Sulfide quartz veins,altered ductile-brittle shear zone and the wall rock alteration are the primary clues for prospection.
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