Leucogranite geochronological constraints on the termination of the South Tibetan Detachment in eastern Himalaya

doi:10.1016/j.tecto.2017.08.019

	Leucogranite geochronological constraints on the termination of the South Tibetan Detachment in eastern Himalaya
	Liu, Zhi-Chao 1; Wu, Fu-Yuan 2; Qiu, Zhi-Li 1; Wang, Jian-Gang 2; Liu, Xiao-Chi2 ; Ji, Wei-Qiang 2; Liu, Chuan-Zhou 2
刊名	TECTONOPHYSICS
	2017-11-28
卷号	721 页码:106-122
关键词	Himalayan Orogen South Tibetan Detachment System Exhumation Of Greater Himalaya Leucogranites Geochronology Yadong Region
ISSN号	0040-1951
DOI	10.1016/j.tecto.2017.08.019
文献子类	Article
英文摘要	The South Tibetan Detachment System (SIDS) developed between the very-low-grade Tethyan Himalayan Sequence (THS) and the high-grade metamorphic Greater Himalayan Sequence (GHS) over an along-strike distance exceeding 2000 kin within the Himalayan orogen. Motion along the STDS has been associated with the exhumation of the GHS and the uplift of the Himalayan Mountains. Geological field mapping and U-Th-Pb geochronological analyses were performed to trace and date the STDS in the Yadong region of southern Tibet, where it is a top-to-the-north shear zone juxtaposing the Yadong klippe of the THS with the high-grade GHS. This shear zone is intruded by multiple generations of leucogranites emplaced mainly at ca. 23 Ma, ca. 20-18 Ma and ca. 17-16 Ma. The undeformed textures of the leucogranites and their cross-cutting relationships with the shear zone indicate that ductile motion along the STDS terminated by ca. 20 Ma. This is largely consistent with the deformation history of the STDS in central and western Himalaya. The termination of shearing along the STDS during the Early Miocene occurred well before the rapid cooling of the GHS during the Middle Miocene, suggesting that exhumation and decompression of the GHS was still ongoing after the cessation of motion along the STDS.
WOS关键词	ZANSKAR SHEAR ZONE ; E-W EXTENSION ; CRYSTALLINE COMPLEX ; BHUTAN HIMALAYA ; CHANNEL FLOW ; TECTONOMETAMORPHIC DISCONTINUITIES ; TECTONIC IMPLICATIONS ; MANASLU LEUKOGRANITE ; ZIRCON GEOCHRONOLOGY ; STRUCTURAL GEOMETRY
WOS研究方向	Geochemistry & Geophysics
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000418309400008
资助机构	National Natural Science Foundation of China(41672055 ; National Natural Science Foundation of China(41672055 ; Fundamental Research Funds for the Central Universities(161gpy11) ; Fundamental Research Funds for the Central Universities(161gpy11) ; 41402050) ; 41402050) ; National Natural Science Foundation of China(41672055 ; National Natural Science Foundation of China(41672055 ; Fundamental Research Funds for the Central Universities(161gpy11) ; Fundamental Research Funds for the Central Universities(161gpy11) ; 41402050) ; 41402050) ; National Natural Science Foundation of China(41672055 ; National Natural Science Foundation of China(41672055 ; Fundamental Research Funds for the Central Universities(161gpy11) ; Fundamental Research Funds for the Central Universities(161gpy11) ; 41402050) ; 41402050) ; National Natural Science Foundation of China(41672055 ; National Natural Science Foundation of China(41672055 ; Fundamental Research Funds for the Central Universities(161gpy11) ; Fundamental Research Funds for the Central Universities(161gpy11) ; 41402050) ; 41402050)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/82284]
专题	中国科学院地质与地球物理研究所
通讯作者	Liu, Zhi-Chao
作者单位	1.Sun Yat Sen Univ, Sch Earth Sci & Engn, Guangdong Prov Key Lab Geodynam & Geohazards, Guangzhou 510275, Guangdong, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
推荐引用方式 GB/T 7714	Liu, Zhi-Chao,Wu, Fu-Yuan,Qiu, Zhi-Li,et al. Leucogranite geochronological constraints on the termination of the South Tibetan Detachment in eastern Himalaya[J]. TECTONOPHYSICS,2017,721:106-122.
APA	Liu, Zhi-Chao.,Wu, Fu-Yuan.,Qiu, Zhi-Li.,Wang, Jian-Gang.,Liu, Xiao-Chi.,...&Liu, Chuan-Zhou.(2017).Leucogranite geochronological constraints on the termination of the South Tibetan Detachment in eastern Himalaya.TECTONOPHYSICS,721,106-122.
MLA	Liu, Zhi-Chao,et al."Leucogranite geochronological constraints on the termination of the South Tibetan Detachment in eastern Himalaya".TECTONOPHYSICS 721(2017):106-122.