Multiple Emplacement and Exhumation History of the Late Mesozoic Dayunshan-Mufushan Batholith in Southeast China and Its Tectonic Significance: 1. Structural Analysis and Geochronological Constraints

doi:10.1002/2017JB014597

	Multiple Emplacement and Exhumation History of the Late Mesozoic Dayunshan-Mufushan Batholith in Southeast China and Its Tectonic Significance: 1. Structural Analysis and Geochronological Constraints
	Ji, Wenbin 1,2; Faure, Michel 2; Lin, Wei 1; Chen, Yan 2; Chu, Yang 1; Xue, Zhenhua 1,2
刊名	JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
	2018
卷号	123 期号:1 页码:689-710
关键词	South China Dayunshan-Mufushan batholith Late Mesozoic tectonomagmatism pluton emplacement structural analysis U-Th-Pb and Ar-Ar geochronology
ISSN号	2169-9313
DOI	10.1002/2017JB014597
文献子类	Article
英文摘要	The South China Block (SCB) experienced a polyphase reworking by the Phanerozoic tectonothermal events. To better understand its Late Mesozoic tectonics, an integrated multidisciplinary investigation has been conducted on the Dayunshan-Mufushan composite batholith in the north-central SCB. This batholith consists of two major intrusions that recorded distinct emplacement features. According to our structural analysis, two deformation events in relation to batholith emplacement and subsequent exhumation are identified. The early one (D-1) was observed mostly at the southern border of the batholith, characterized by a top-to-the-SW ductile shearing in the early-stage intrusion and along its contact zone. This deformation, chiefly associated with the pluton emplacement at ca. 150Ma, was probably assisted by farfield compression from the northern Yangtze foreland belt. The second but main event (D-2) involved two phases: (1) ductile shearing (D-2a) prominently expressed along the Dayunshan detachment fault at the western border of the batholith where the syntectonic late-stage intrusion and minor metasedimentary basement in the footwall suffered mylonitization with top-to-the-NW kinematics; and (2) subsequent brittle faulting (D-2b) further exhumed the entire batholith that behaved as rift shoulder with half-graben basins developed on its both sides. Geochronological constraints show that the crustal ductile extension occurred during 132-95Ma. Such a Cretaceous NW-SE extensional tectonic regime, as indicated by the D-2 event, has been recognized in a vast area of East Asia. This tectonism was responsible not only for the destruction of the North China craton but also for the formation of the so-called southeast China basin and range tectonics.
WOS关键词	METAMORPHIC CORE COMPLEX ; HF ISOTOPIC COMPOSITIONS ; QINGYANG-JIUHUA MASSIF ; U-PB AGES ; NORTH CHINA ; EXTENSIONAL TECTONICS ; OROGENIC BELT ; EAST-ASIA ; PERALUMINOUS GRANITOIDS ; YANGTZE CRATON
WOS研究方向	Geochemistry & Geophysics
语种	英语
出版者	AMER GEOPHYSICAL UNION
WOS记录号	WOS:000426132600040
资助机构	MOST of China(2016YFC0600401 ; MOST of China(2016YFC0600401 ; MOST of China(2016YFC0600401 ; MOST of China(2016YFC0600401 ; NSFC(41502202 ; NSFC(41502202 ; NSFC(41502202 ; NSFC(41502202 ; 2016YFC0600102) ; 2016YFC0600102) ; 2016YFC0600102) ; 2016YFC0600102) ; 41225009) ; 41225009) ; 41225009) ; 41225009) ; MOST of China(2016YFC0600401 ; MOST of China(2016YFC0600401 ; MOST of China(2016YFC0600401 ; MOST of China(2016YFC0600401 ; NSFC(41502202 ; NSFC(41502202 ; NSFC(41502202 ; NSFC(41502202 ; 2016YFC0600102) ; 2016YFC0600102) ; 2016YFC0600102) ; 2016YFC0600102) ; 41225009) ; 41225009) ; 41225009) ; 41225009) ; MOST of China(2016YFC0600401 ; MOST of China(2016YFC0600401 ; MOST of China(2016YFC0600401 ; MOST of China(2016YFC0600401 ; NSFC(41502202 ; NSFC(41502202 ; NSFC(41502202 ; NSFC(41502202 ; 2016YFC0600102) ; 2016YFC0600102) ; 2016YFC0600102) ; 2016YFC0600102) ; 41225009) ; 41225009) ; 41225009) ; 41225009) ; MOST of China(2016YFC0600401 ; MOST of China(2016YFC0600401 ; MOST of China(2016YFC0600401 ; MOST of China(2016YFC0600401 ; NSFC(41502202 ; NSFC(41502202 ; NSFC(41502202 ; NSFC(41502202 ; 2016YFC0600102) ; 2016YFC0600102) ; 2016YFC0600102) ; 2016YFC0600102) ; 41225009) ; 41225009) ; 41225009) ; 41225009)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/82694]
专题	中国科学院地质与地球物理研究所
通讯作者	Lin, Wei
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing, Peoples R China 2.Univ Orleans, Inst Sci Terre Orleans, UMR 7327, Orleans, France
推荐引用方式 GB/T 7714	Ji, Wenbin,Faure, Michel,Lin, Wei,et al. Multiple Emplacement and Exhumation History of the Late Mesozoic Dayunshan-Mufushan Batholith in Southeast China and Its Tectonic Significance: 1. Structural Analysis and Geochronological Constraints[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH,2018,123(1):689-710.
APA	Ji, Wenbin,Faure, Michel,Lin, Wei,Chen, Yan,Chu, Yang,&Xue, Zhenhua.(2018).Multiple Emplacement and Exhumation History of the Late Mesozoic Dayunshan-Mufushan Batholith in Southeast China and Its Tectonic Significance: 1. Structural Analysis and Geochronological Constraints.JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH,123(1),689-710.
MLA	Ji, Wenbin,et al."Multiple Emplacement and Exhumation History of the Late Mesozoic Dayunshan-Mufushan Batholith in Southeast China and Its Tectonic Significance: 1. Structural Analysis and Geochronological Constraints".JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH 123.1(2018):689-710.