Characteristics of Volcanic Rocks and Analysis on the Prospecting Potentiality in Duocai Region, Zhiduo County , Qinghai
详细信息
- 责任者：Zhang Zongxue (Qinghai Institute of Geology for Mineral Resources ; Xining 810007 ; China) ; Qin Zeli
- 刊名：Northwestern Geology
- 出版年：2012
- 卷期：45(1)
- 关键词：火山岩 ; volcanic rocks ; 青海 ; Qinghai Province
- 页码：p.63-70
- 图表：7 illus., 3 tables, 18 refs.
- 分类号：0801
- issnNo：ISSN1009-6248
- isbnNo：CN61-1149/P
摘要
This paper focused on the characteristics of volcanic rocks which close to the mineralization in the area, restored volcanic apparatus and volcanic eruption environment, and discussed the relationship between volcanic activity and mineralization. Studies have shown that the volcanic rocks in this area are mainly dacite and dacitic pyroclastic rocks, followed by andesite, andesitic pyroclastic rocks. Volcanic eruption was happen in shallow marine zone with structure environment of volcanic belongs to island-arc environment. Mineralization mainly related to ancient volcanic apparatus and the late dynamic metamorphism.