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Late Cretaceous-Palaeogene topography of the Chinese Tian Shan: New insights from geomorphology and sedimentology
Jolivet, Marc1; Barrier, Laurie2; Dauteuil, Olivier1; Laborde, Amandine2; Li, Qian3; Reichenbacher, Bettina4; Popescu, Speranta-Maria5; Sha, Jingeng (沙金庚)6; Guo, Zhaojie3
2018-10-01
Source PublicationEARTH AND PLANETARY SCIENCE LETTERS
ISSN0012-821X
Volume499Pages:95-106
Abstract

The Cenozoic growth of the intra-continental Tian Shan Range initiated during the late Eocene-Oligocene, and led to a tectonic reactivation of the complex Palaeozoic and Mesozoic lithospheric structure. Due to the very low erosion rates linked to the semi-arid climate that characterised the Tian Shan region during most of the Cenozoic, the topography of the range is not at equilibrium with deformation. Fragments of pre-orogenic low relief surfaces are preserved among the Late Cenozoic Alpine-type topography. Using field observations and satellite image mapping of those fragments, as well as sedimentology and biostratigraphic analysis, we show that the pre-Oligocene topography of the Tian Shan region was indeed complex, combining hundreds of metres to one-and-a-half kilometre-high reliefs with a multi-phased Mesozoic planation surface incised by Late Mesozoic paleo-valleys. The occurrence of several metres-thick Late Cretaceous-Palaeogene calcareous paleosols, in the basins surrounding the range further implies a semi-arid climate, very low subsidence rates and no uplift at that time. Late Cretaceous and early Miocene fossil records in the northern Tian Shan suggest a possible connection, even if episodic, between the drainage system of the south Junggar foreland basin and the proto-Paratethys Sea to the west. A renewed late Eocene-early Oligocene sedimentation probably marks the onset of the Tian Shan uplift. We argue that in addition to the growth of the Pamir and Western Kunlun ranges, this incipient uplift was one of the driving mechanisms for the final retreat of the proto-Paratethys Sea from the Tarim Basin. This regression apparently did not change the climate in the studied area because semi-arid conditions seem to prevail at least since the Late Cretaceous. Finally, the Tian Shan uplift remained very limited up to the Miocene as revealed by the occurrence of Burdigalian lake deposits preserved in the paleo-valleys inside the present day range. In contrast, post-early Miocene deformation of the northern Tian Shan has produced 4000 to 5000 m of differential vertical movement between the uplifted range and the subsiding proximal foreland basin. (C) 2018 Elsevier B.V. All rights reserved.

KeywordTopographic Heritage Central Asia Tian Shan Geomorphology
DOI10.1016/j.epsl.2018.07.004
Language英语
WOS KeywordKyrgyz-tien-shan ; India-asia Collision ; Northwest China ; Nw China ; Tibetan Plateau ; Junggar Basin ; Tarim Basin ; Zircon Geochronology ; Geodynamic Evolution ; Tectonic Evolution
Funding ProjectCampus France Egide - China Scholarship Council Cai Yuanpei program[32393WL] ; CNRS-INSU SYSTER program ; Saladyn International Laboratory
WOS Research AreaGeochemistry & Geophysics
WOS SubjectGeochemistry & Geophysics
WOS IDWOS:000444359800009
Funding OrganizationCampus France Egide - China Scholarship Council Cai Yuanpei program ; CNRS-INSU SYSTER program ; Saladyn International Laboratory
PublisherELSEVIER SCIENCE BV
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.nigpas.ac.cn/handle/332004/16923
Collection中国科学院南京地质古生物研究所
其他
Corresponding AuthorJolivet, Marc
Affiliation1.Univ Rennes, CNRS, Geosci Rennes, UMR 6118, F-35000 Rennes, France
2.Univ Paris Diderot, Sorbonne Paris Cite, CNRS, Inst Phys Globe Paris,UMR 7154, Paris, France
3.Peking Univ, Sch Earth & Space Sci, Minist Educ, Key Lab Orogen Belts & Crustal Evolut, Beijing 100871, Peoples R China
4.Ludwig Maximilians Univ Munchen, Dept Geo & Umweltwissensch Paldontol & Geobiol, Richard Wagner Str 10, D-80333 Munich, Germany
5.Geobiostratadata Consulting, 385 Route Mas Ruder, F-69140 Rillieux La Pape, France
6.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, Nanjing 210008, Jiangsu, Peoples R China
Recommended Citation
GB/T 7714
Jolivet, Marc,Barrier, Laurie,Dauteuil, Olivier,et al. Late Cretaceous-Palaeogene topography of the Chinese Tian Shan: New insights from geomorphology and sedimentology[J]. EARTH AND PLANETARY SCIENCE LETTERS,2018,499:95-106.
APA Jolivet, Marc.,Barrier, Laurie.,Dauteuil, Olivier.,Laborde, Amandine.,Li, Qian.,...&Guo, Zhaojie.(2018).Late Cretaceous-Palaeogene topography of the Chinese Tian Shan: New insights from geomorphology and sedimentology.EARTH AND PLANETARY SCIENCE LETTERS,499,95-106.
MLA Jolivet, Marc,et al."Late Cretaceous-Palaeogene topography of the Chinese Tian Shan: New insights from geomorphology and sedimentology".EARTH AND PLANETARY SCIENCE LETTERS 499(2018):95-106.
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