Cenozoic exhumation history of Sulu terrane: Implications from (U-Th)/He thermochrology

doi:10.1016/j.tecto.2016.01.035

CORC > 地质与地球物理研究所 > 中国科学院地质与地球物理研究所 > 岩石圈演化国家重点实验室

	Cenozoic exhumation history of Sulu terrane: Implications from (U-Th)/He thermochrology
	Wu, Lin 1,2; Monie, Patrick 2; Wang, Fei 1; Lin, Wei 1; Ji, Wenbin 1; Bonno, Michael 2; Munch, Philippe 2; Wang, Qingchen 1
刊名	TECTONOPHYSICS
	2016-03-16
卷号	672 页码:1-15
关键词	Sulu belt (U-Th)/He thermochronology He partial retention zone Eocene enhanced cooling
DOI	10.1016/j.tecto.2016.01.035
文献子类	Article
英文摘要	The Qinling-Dabie-Sulu orogen is the most prominent Phanerozoic orogenic belt in China. The discovery of ultra-high pressure (UHP) minerals in zircon inclusions suggests that the crust was subducted to deeper than 120 km into the mantle and then exhumed to shallow crustal. Recently, low temperature thermochronology has been applied to constrain the final exhumation of Dabie Shan, while there are few studies describing the Cenozoic exhumation history of the Sulu belt. Here we report some (U-Th)/He ages for various lithologies from Sulu Orogenic belt and its northern part-Jiaobei terrane. The single grain He ages range between 18 and 154 Ma, and most of the samples having large intra-sample age scattering. Several reasons such as invisible U/Th-rich inclusions, grain size effect, slow cooling rate, and zonation of parent nuclide or radiation damage effect may account for this dispersion. For all samples, the pattern of the single grain age data exhibits a peak at similar to 45 Ma which is consistent with the borehole fission track age pattern in adjacent Hefei Basin. Both (U-Th)/He and fission track ages of the Sulu area suggest an enhanced exhumation/cooling in Early-Middle Eocene in the southern part of Tan-Lu fault zone. This enhanced cooling event coincides with rapid subsidence of North China Basin and rapid uplift of its surrounding reliefs, which indicates basin-mountain coupling. This Eocene event is widespread in central China and could be far-field consequence of India-Asia collision. The convergence rate between Pacific Plate and Eurasia decreased substantially during early Tertiary and reached a minimum in Eocene (similar to 30-40 mm/yr) while at the same time the collision between India and Asia was completed. Therefore, the Cenozoic exhumation history of the Sulu Orogenic Belt was a combined result of far-field effect of India-Asia collision and declined subduction rate of the Pacific Plate under Eurasia. (C) 2016 Elsevier B.V. All rights reserved.
WOS关键词	TAN-LU FAULT ; APATITE-FISSION-TRACK ; ULTRAHIGH-PRESSURE METAMORPHISM ; COESITE-BEARING ECLOGITES ; ZIRCON U-PB ; HF GARNET GEOCHRONOLOGY ; INDIA-EURASIA COLLISION ; NORTH CHINA CRATON ; EAST-CENTRAL CHINA ; OROGENIC BELT
WOS研究方向	Geochemistry & Geophysics
语种	英语
WOS记录号	WOS:000374608400001
资助机构	Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; Le Centre National de la recherche scientifique (CNRS) ; Le Centre National de la recherche scientifique (CNRS) ; Le Centre National de la recherche scientifique (CNRS) ; Le Centre National de la recherche scientifique (CNRS) ; China Natural Science Foundation(41503055 ; China Natural Science Foundation(41503055 ; China Natural Science Foundation(41503055 ; China Natural Science Foundation(41503055 ; "Strategic Priority Research Program" of the Chinese Academy of Sciences(XDB03020203) ; "Strategic Priority Research Program" of the Chinese Academy of Sciences(XDB03020203) ; "Strategic Priority Research Program" of the Chinese Academy of Sciences(XDB03020203) ; "Strategic Priority Research Program" of the Chinese Academy of Sciences(XDB03020203) ; 41025010 ; 41025010 ; 41025010 ; 41025010 ; 41221002 ; 41221002 ; 41221002 ; 41221002 ; 41302114) ; 41302114) ; 41302114) ; 41302114) ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; Le Centre National de la recherche scientifique (CNRS) ; Le Centre National de la recherche scientifique (CNRS) ; Le Centre National de la recherche scientifique (CNRS) ; Le Centre National de la recherche scientifique (CNRS) ; China Natural Science Foundation(41503055 ; China Natural Science Foundation(41503055 ; China Natural Science Foundation(41503055 ; China Natural Science Foundation(41503055 ; "Strategic Priority Research Program" of the Chinese Academy of Sciences(XDB03020203) ; "Strategic Priority Research Program" of the Chinese Academy of Sciences(XDB03020203) ; "Strategic Priority Research Program" of the Chinese Academy of Sciences(XDB03020203) ; "Strategic Priority Research Program" of the Chinese Academy of Sciences(XDB03020203) ; 41025010 ; 41025010 ; 41025010 ; 41025010 ; 41221002 ; 41221002 ; 41221002 ; 41221002 ; 41302114) ; 41302114) ; 41302114) ; 41302114)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/53471]
专题	地质与地球物理研究所_岩石圈演化国家重点实验室
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 10029, Peoples R China 2.Univ Montpellier 2, CNRS, Geosci Montpellier, UMR 5243, Pl E Bataillon, F-34095 Montpellier, France
推荐引用方式 GB/T 7714	Wu, Lin,Monie, Patrick,Wang, Fei,et al. Cenozoic exhumation history of Sulu terrane: Implications from (U-Th)/He thermochrology[J]. TECTONOPHYSICS,2016,672:1-15.
APA	Wu, Lin.,Monie, Patrick.,Wang, Fei.,Lin, Wei.,Ji, Wenbin.,...&Wang, Qingchen.(2016).Cenozoic exhumation history of Sulu terrane: Implications from (U-Th)/He thermochrology.TECTONOPHYSICS,672,1-15.
MLA	Wu, Lin,et al."Cenozoic exhumation history of Sulu terrane: Implications from (U-Th)/He thermochrology".TECTONOPHYSICS 672(2016):1-15.