Geochemical Characteristics and Tectonic Environment of the Continental Facies Volcanic Rocks in Elashan Area , Qinghai
详细信息
- 责任者：Li Yongxiang (Eighth Institute of Mineral Exploration in Qinghai ; Xining 810001 ; China) ; Li Shanping
- 刊名：Northwestern Geology
- 出版年：2011
- 卷期：44(4)
- 关键词：火山岩 ; volcanic rocks ; 青海 ; Qinghai Province
- 页码：p.23-32
- 图表：7 illus., 3 tables, 23 refs.
- 分类号：0801
- 出版序号：20122304
- issnNo：ISSN1009-6248
- isbnNo：CN61-1149/P
摘要
Late Triassic volcanic rocks with the combination of neutral-acidic volcanic rock of magmatic belt in Elashan area, composed of the basaltic andesite, andesite, dacite, rhyolite and a little of pyroclastic rock etc. According to these characteristics of the regional geological setting and geochemical, structural environment of the volcanic rock, the authors summarized this conclusion that Late Triassic volcanic rocks in Elashan area were produced in the environment of the coexistence of East Kunlun block and West Qinling block mutually collision with continental margin arc environment.