Stratigraphic Records on Lithospheric Viscoelastic Deformation in Early Cretaceous, Kuqa Foreland Basin
- 责任者：Wang Jiahao (Faculty of Earth Resources ; China University of Geosciences ; Wuhan 430074 ; China) ; Wang Hua
- 刊名：Acta Sedimentologica Sinica
- 出版年：2010
- 卷期：28(3)
- 关键词：早白垩世 ; Lower Cretaceous ; 构造演化 ; structural evolution ; 库车坳陷 ; Kuqa Depression
- 页码：p.412-418
- 图表：7 illus., 20 refs.
- 分类号：1200
- issnNo：ISSN1000-0550
- isbnNo：CN62-1038/P
Based on the flexural process of elastic lithosphere different from that of viscoelastic lithosphere in foreland basins, this paper provides a solution to acquire the information about lithospheric dynamic property and deformation process by virtue of stratigraphic configurations at the forebulge slope belt. The Kuqa foreland basin, as an example, had gone through tectonic evolution of two thrust periods and a quiescence period in the Early Cretaceous. The Kapushaliang Group and Bashenjiqike Formation had respectively developed during thrust and during quiescence. In a single thrust period, accompanied with thrust loading and lithospheric flexural deformation, lithosphere had transformed from elastic property to viscoelastic, and the basin had widen forward to carton and then had narrowed and deepened forward to thrust-fault belt.