Lithospsheric Structure of Northeastern SichuanDabashan BasinRange System and TopDeep Deformation Coupling
详细信息
- 责任者：Li Qiusheng (Institute of Geology ; CAGS ; Beijing 100037 ; China) ; Gao Rui
- 刊名：Acta Petrologica Sinica
- 出版年：2011
- 卷期：27(3)
- 关键词：深地震测深 ; deep seismic sounding ; 岩石圈 ; lithosphere ; 大巴山 ; Daba Mountains
- 页码：p.612-620
- 图表：5 illus., 1 table, 28 refs.
- 分类号：0400
- issnNo：ISSN1000-0569
- isbnNo：CN11-1922/P
摘要
Based on the geometry of lithosphere structure from deep seismic reflection profile and the velocity data from Deep Seismic Sounding (DSS) profiles, the authors have made an analysis on the feature of lithosphere structure of northeastern Sichuan-Dabashan basin-range system and some discusses on the relationship between deformation style and lithosphere structures, and then update understanding Dabashan orogen. The basement of Yangtze craton extends beneath whole northeastern Sichuan-Dabashan basin-range system. The larger thickness and strength of lithosphere result in Yangtze craton focus its contract deformation rather at the top of crust than middle-to-lower crust in the process of intracontinental orogeny after Yangtze spliced with North China craton.