Chronology and Geochemical Characteristics of Yawa Mafic Complex in the Dajiacuo Area, Southern Gangdese
详细信息
- 责任者：Li Fenqi (Chengdu Institute of Geology and Mineral Resources ; Ministry of Land and Resources ; Chengdu 610081 ; China) ; Liu Wei
- 刊名：Acta Geologica Sinica
- 出版年：2012
- 卷期：86(10)
- 关键词：杂岩 ; complexes ; 铀—铅计时 ; U-Pb dating ; 冈底斯山 ; Gangdise Range
- 页码：p.1592-1603
- 图表：6 illus., 2 tables, 34 refs.
- 分类号：0801,1300
- issnNo：ISSN0001-5717
- isbnNo：CN11-1951/P
摘要
This paper presents the data of geochemistry and U-Pb dating of Yawa mafic complex exposed in Dajiacuo area, southern Gangdese so as to put constrain on this issue. Based on the regional sedimentary features, volcanics and deformation and metamorphism during Carboniferous and Devonian, it is suggested that southern Gangdese was in passive continental margin, and northern area in active continental margin during the Devonian.