Construction and Structural Analysis of Regional Geological Sections of the Southern Dabashan Thrust-Fold Belts
详细信息
- 责任者：Dong Youpu (Department of Earth Sciences ; Zhejiang University ; Hangzhou 310027 ; China) ; Shen Zhongyan
- 刊名：Acta Petrologica Sinica
- 出版年：2011
- 卷期：27(3)
- 关键词：褶皱冲断带 ; fold and thrust belts ; 构造分析 ; structural analysis ; 大巴山 ; Daba Mountains
- 页码：p.689-698
- 图表：6 illus., 1 table, 36 refs.
- 分类号：0300
- issnNo：ISSN1000-0569
- isbnNo：CN11-1922/P
摘要
In this paper, the authors focus on the structures of the South Dabashan thrust-fold belt. The result indicates that it has multi-level and multi-stages deformation. The upper system is controlled by detachment along the gypsum layers in the limestone of the Lower Triassic Jialingjiang Formation, and nearly all the Mesozoic strata are involved into the deformation. According to them, the authors study in detail the structure and distribution of the upper and the lower thrust systems, their geometric and kinematic characteristics, and the spatial relationship between the Dabashan and the Chuandong thrust-fold belts. It concluds that the South Dabashan thrust belt is a complex multi-level thin-skinned thrust system with strong deformation and shortening.