Episodic Mesozoic constructional events of central South China:   constraints from lines of evidence of superimposed folds, fault   kinematic analysis, and magma geochronology

doi:10.1080/00206814.2016.1146999

CORC > 北京大学 > 地球与空间科学学院

	Episodic Mesozoic constructional events of central South China: constraints from lines of evidence of superimposed folds, fault kinematic analysis, and magma geochronology
	Li, Yong ; Dong, Shuwen ; Zhang, Yueqiao ; Li, Jianhua ; Su, Jinbao ; Han, Baofu
刊名	INTERNATIONAL GEOLOGY REVIEW
	2016
关键词	Superimposed fold tectonic stress field Mesozoic tectonics South China TAN-LU FAULT ARCHEAN CRUSTAL EVOLUTION GA CONTINENTAL-CRUST U-PB AGE TECTONIC EVOLUTION OVERTHRUST TECTONICS YANGTZE CRATON NANLING RANGE SE CHINA BREAK-UP
DOI	10.1080/00206814.2016.1146999
英文摘要	The South China block (SCB), located in the convergence zones of the western Pacific subduction tectonic domain and Tethyan tectonic domain, has experienced complex tectonic processes, including the continent-continent collision caused by the closure of the Palaeo-Tethys Ocean, and the subduction of the Palaeo-Pacific plate. However, due to complex intracontinental deformation and abundant magmatism, there are serious divergences in the corresponding records of the tectonic transformation from Palaeo-Tethys to Palaeo-Pacific. We have analysed the map-scale superimposed fold system developed in central SCB and also inverted the palaeo-stress field based on the fault-slip vectors. On this basis, the deformation styles and superposition mechanism of two-stage folds were recovered to establish the tectonic stress field in early Mesozoic and tectono-magmatic events by combining the chronology of the accompanying syntectonic magma. The early E-W/WNW-trending folds and Triassic magmatic system were identified; these were controlled by the NE-SW-trending compressive stress field, to coordinate with the collisions between the SCB and the Indochina block in the southwest, and the North China block in the north. The late NE/NNE-trending folds superimposed on the early folds in an orthogonal way to form a large-scale dome-basin superimposed fold system, which were controlled by the WNW-ESE-trending compressive stress field. According to the strata relations involved in deformation and the chronology data of magmatic rocks, it could be determined that NE/ENE-trending folds would be formed during the Mid- to Late Jurassic, corresponding to the westward subduction events of the Palaeo-Pacific plate. The establishment of the large-scale superimposed fold styles and the identification of fold deformation in the Triassic and Jurassic are important for understanding the early Mesozoic tectonics of South China, and even for all East Asia continent. In particular, it can provide important temporal and spatial constraints to explain the complex deformation process and geodynamic settings of South China in the early Mesozoic.; SINOPROBE-08-01 Programme; SCI(E); ARTICLE; swdong@cags.ac.cn; 9; 1076-1107; 58
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/438092]
专题	地球与空间科学学院
推荐引用方式 GB/T 7714	Li, Yong,Dong, Shuwen,Zhang, Yueqiao,et al. Episodic Mesozoic constructional events of central South China: constraints from lines of evidence of superimposed folds, fault kinematic analysis, and magma geochronology[J]. INTERNATIONAL GEOLOGY REVIEW,2016.
APA	Li, Yong,Dong, Shuwen,Zhang, Yueqiao,Li, Jianhua,Su, Jinbao,&Han, Baofu.(2016).Episodic Mesozoic constructional events of central South China: constraints from lines of evidence of superimposed folds, fault kinematic analysis, and magma geochronology.INTERNATIONAL GEOLOGY REVIEW.
MLA	Li, Yong,et al."Episodic Mesozoic constructional events of central South China: constraints from lines of evidence of superimposed folds, fault kinematic analysis, and magma geochronology".INTERNATIONAL GEOLOGY REVIEW (2016).