DOI: 10.1016/j.earscirev.2019.102891
论文题名: Cenozoic deformation of the Tarim Basin and surrounding ranges (Xinjiang, China): A regional overview
作者: Laborde A. ; Barrier L. ; Simoes M. ; Li H. ; Coudroy T. ; Van der Woerd J. ; Tapponnier P.
刊名: Earth Science Reviews
ISSN: 00128252
出版年: 2019
卷: 197 语种: 英语
中文关键词: Altyn Tagh
; Asian Cenozoic deformation
; Balanced geological cross-sections
; Shortening
; Tarim Basin
; Tian Shan
; Western Kunlun
英文关键词: Cenozoic
; crustal shortening
; decollement
; deformation
; orogeny
; uplift
; Altun Mountains
; China
; Kunlun Mountains
; Tarim Basin
; Tien Shan
; Xinjiang Uygur
; Xinjiang Uygur
英文摘要: With its central position between the Tibetan Plateau and the Tian Shan Range, the Tarim Basin is a key element of the Cenozoic Asian orogenic system. However, a comprehensive regional study, and more particularly the quantification of shortening through this basin and its margins, are still needed to understand its role in the Cenozoic deformation of Asia. From a compilation of previous works, together with an extensive dataset of satellite, field, seismic and well data, we provide a tectonic map of the Cenozoic structures and four balanced geological transects of the Tarim Basin and its surrounding ranges. Based on this map and these cross-sections, we characterize the Cenozoic deformation of the original Proterozoic Tarim block. From structural restorations and crustal budgets, we also quantify the compressive component of this deformation. Most of the Cenozoic compressive deformation (from ~94% to 100%) is concentrated in the ranges along the block margins. To the west, up to 78 ± 23 km and 54 +24/−18 km of crustal shortening are accommodated across the compressive Western Kunlun and Southwestern Tian Shan ranges, while to the east, up to 38.6 ± 18 km and 15 + 20/−15 km are accommodated across the transpressive Altyn Tagh and Southeastern Tian Shan ranges. A non-negligible amount of compressive deformation (up to ~6%) is also accommodated within the Tarim Basin by large basement-cored uplifts with a vergence synthetic to the deformation of the Tibetan Plateau edge. To the west, the Bachu uplift absorbs ~5 km of the total crustal shortening of the Western Kunlun thrust system, while to the south, the Tanan uplift accumulates ~0.6 km of the Altyn Tagh strike-slip system. Structural inheritance has a major influence on the Cenozoic deformation since ~33.3% to 100% of the total shortening is accommodated by reactivated basement structures inherited from the Protero-Paleozoic history of the Tarim block. Finally, we argue that the basement-cored uplifts in the centre of the basin imply a deformation transfer from the Tibetan Plateau to the Tian Shan, above a deep crustal decollement decoupling the deforming crust from an underlying rigid mantle. © 2019 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/165845
Appears in Collections: 气候变化与战略
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作者单位: Université de Paris, Institut de physique du globe de Paris, CNRS, Paris, F-75005, France; Institute of Geology, Chinese Academy of Geological Sciences, Beinjing, China; Now at Technosol, Ballainvilliers, France; Institut de Physique du Globe de Strasbourg - Université de Strasbourg, CNRS, UMR 7516, Strasbourg, France; Now at Institute of Crustal Dynamics, China Earthquake Administration, Beijing, China
Recommended Citation:
Laborde A.,Barrier L.,Simoes M.,et al. Cenozoic deformation of the Tarim Basin and surrounding ranges (Xinjiang, China): A regional overview[J]. Earth Science Reviews,2019-01-01,197