Granitoid emplacement during syn-convergent transtension: An example from the Huamenlou pluton in North Qinling, central China

doi:10.1016/j.gsf.2017.02.007

	Granitoid emplacement during syn-convergent transtension: An example from the Huamenlou pluton in North Qinling, central China
	Li, Yang 1,2; Liang, Wentian 1,2; Zhang, Guowei 1,2; Ran, Yazhou 1,2; Shen, Qi 1,2; Wang, Jingli 3; Jin, Chunsheng 4
刊名	GEOSCIENCE FRONTIERS
	2018
卷号	9 期号:1 页码:191-205
关键词	Zircon U-pb Dating Magnetic Fabric Shape Preferred Orientation Linear Pluton Qinling Orogen
ISSN号	1674-9871
DOI	10.1016/j.gsf.2017.02.007
文献子类	Article
英文摘要	The Huamenlou pluton, is an elongated granite intrusion with high aspect ratio, emplaced within the southern margin of the North Qinling (central China). Here we investigate this pluton through multiple techniques including the fabric study, microstructural observation and zircon geochronology. Our zircon UePb data confirm that the granite crystallized at ca. 462 Ma which is consistent with the ages of other linear plutons in North Qinling. Microstructural observations of the Huamenlou granites illustrate that the pluton has undergone superimposed deformation during its emplacement, from magmatic to hightemperature solid state conditions. The internal fabric obtained by anisotropy of magnetic susceptibility (AMS) and shape preferred orientation (SPO) show similar results. The fabrics are relatively concordant and generally vary from NEeSW to NEEeSWW which are roughly oblique to the trend of the pluton elongation and the regional structures. Meanwhile, scalar parameters reflect two completely different strain regimes for the pluton and its host rocks, i.e., the fabrics within host rocks are mainly oblate while the central part of the intrusion displays mainly prolate fabrics. It is inferred that the structural pattern recorded in this pluton was caused by local dextral transtension in consequence of oblique convergence between the South and North China Blocks. We propose that the local transtension in convergence setting probably evolved from vertical extrusion tectonics that provided room for the magma emplacement and imparted prolate fabrics in the Huamenlou pluton. (C) 2017, China University of Geosciences (Beijing) and Peking University. Production and hosting by Elsevier B.V.
WOS关键词	CLOSE SPATIAL RELATIONSHIP ; MAGNETIC-SUSCEPTIBILITY ; SHEAR-ZONE ; OROGENIC BELTS ; MAGMATISM ; EXTRUSION ; ROCKS ; SCALE ; GEOCHRONOLOGY ; GEOCHEMISTRY
WOS研究方向	Geology
语种	英语
出版者	CHINA UNIV GEOSCIENCES, BEIJING
WOS记录号	WOS:000418531700012
资助机构	NSFC(41672200 ; NSFC(41672200 ; Most Special Fund from the State Key Laboratory of Continental Dynamics(BJ081331 ; Most Special Fund from the State Key Laboratory of Continental Dynamics(BJ081331 ; Innovation Fund for Graduate students of Northwest University(YZZ14016) ; Innovation Fund for Graduate students of Northwest University(YZZ14016) ; 41002070) ; 41002070) ; BJ14257) ; BJ14257) ; NSFC(41672200 ; NSFC(41672200 ; Most Special Fund from the State Key Laboratory of Continental Dynamics(BJ081331 ; Most Special Fund from the State Key Laboratory of Continental Dynamics(BJ081331 ; Innovation Fund for Graduate students of Northwest University(YZZ14016) ; Innovation Fund for Graduate students of Northwest University(YZZ14016) ; 41002070) ; 41002070) ; BJ14257) ; BJ14257) ; NSFC(41672200 ; NSFC(41672200 ; Most Special Fund from the State Key Laboratory of Continental Dynamics(BJ081331 ; Most Special Fund from the State Key Laboratory of Continental Dynamics(BJ081331 ; Innovation Fund for Graduate students of Northwest University(YZZ14016) ; Innovation Fund for Graduate students of Northwest University(YZZ14016) ; 41002070) ; 41002070) ; BJ14257) ; BJ14257) ; NSFC(41672200 ; NSFC(41672200 ; Most Special Fund from the State Key Laboratory of Continental Dynamics(BJ081331 ; Most Special Fund from the State Key Laboratory of Continental Dynamics(BJ081331 ; Innovation Fund for Graduate students of Northwest University(YZZ14016) ; Innovation Fund for Graduate students of Northwest University(YZZ14016) ; 41002070) ; 41002070) ; BJ14257) ; BJ14257)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/82294]
专题	中国科学院地质与地球物理研究所
通讯作者	Li, Yang
作者单位	1.Northwest Univ Xian, State Key Lab Continental Dynam, Xian 710069, Shaanxi, Peoples R China 2.Northwest Univ Xian, Collaborat Innovat Ctr Continental Tecton, Xian 710069, Shaanxi, Peoples R China 3.Earthquake Adm Shaanxi Prov, Xian 710068, Shaanxi, Peoples R China 4.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China
推荐引用方式 GB/T 7714	Li, Yang,Liang, Wentian,Zhang, Guowei,et al. Granitoid emplacement during syn-convergent transtension: An example from the Huamenlou pluton in North Qinling, central China[J]. GEOSCIENCE FRONTIERS,2018,9(1):191-205.
APA	Li, Yang.,Liang, Wentian.,Zhang, Guowei.,Ran, Yazhou.,Shen, Qi.,...&Jin, Chunsheng.(2018).Granitoid emplacement during syn-convergent transtension: An example from the Huamenlou pluton in North Qinling, central China.GEOSCIENCE FRONTIERS,9(1),191-205.
MLA	Li, Yang,et al."Granitoid emplacement during syn-convergent transtension: An example from the Huamenlou pluton in North Qinling, central China".GEOSCIENCE FRONTIERS 9.1(2018):191-205.