Provenance of the Cenozoic Bengal Basin sediments: Insights from U-Pb ages and Hf isotopes of detrital zircons

doi:10.1002/gj.3258

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

	Provenance of the Cenozoic Bengal Basin sediments: Insights from U-Pb ages and Hf isotopes of detrital zircons
	Yang, Lei 1,2; Xiao, Wenjiao 1,2,3; Rahman, M. Julleh Jalalur 4; Windley, Brian F.5; Schulmann, Karel 6; Ao, Songjian 1,2; Chen, Zhenyu 1,2; Li, Rui 1,2
刊名	GEOLOGICAL JOURNAL
	2019-03-01
卷号	54 期号:2 页码:978-990
关键词	Bengal Basin detrital zircon U-Pb ages Hf isotope India-Asia collision provenance
ISSN号	0072-1050
DOI	10.1002/gj.3258
英文摘要	The Bengal Basin is located in the foreland of the eastern Himalaya and records late Palaeocene to Pleistocene sedimentation. This makes the Bengal Basin an ideal place to study the evolution of the eastern Himalaya by provenance researches. Even though there have been several studies about its provenance, a consensus has not been reached about when the Himalayan and Gangdese-derived detritus started to deposit in the eastern Himalayan foreland. Here, we study the provenance of Eocene to Pleistocene sedimentary successions of the Bengal Basin by detrital zircon U-Pb geochronology and Hf isotope analyses. Detrital zircon U-Pb age spectra show a predominant peak of similar to 470-580Ma in all the samples. A peak at this time is prominent in sediments of the Tethyan Himalaya and Lesser Himalaya, which means the detritus eroded from Himalaya may have been deposited in the Bengal Basin after the late Palaeocene-early Eocene, synchronous with detritus derived from the western and central Himalaya. Gangdese-derived zircons were firstly recorded in the late Eocene Kopili Formation, and they were sporadic from the late Eocene to middle Miocene, which was probably due to the long distance between the Bengal Basin and the Lhasa Block, to the forebulge in the Lesser Himalayan Sequence, or to a wide tectonic separation at that time. The first influx of abundant Gangdese-derived zircons occurred in the lower part of the Boka Bil Formation in the late Miocene (similar to 10Ma), which was probably caused either by the Brahmaputra River capturing the Yarlung Tsangpo River or by a much later terminal collision between India and Eurasia, or both.
资助项目	Key Research Program of Frontier Sciences, CAS[QYZDJ-SSW-SYS012] ; National Natural Science Foundation of China[41230207] ; National Natural Science Foundation of China[41202150] ; Chinese Academy of Sciences[XDB18020203] ; Chinese Academy of Sciences[XDB03010801]
WOS关键词	INDO-BURMAN RANGES ; SOUTHERN TIBET CONSTRAINTS ; TETHYAN HIMALAYA ; HISTORY ; EVOLUTION ; PETROGENESIS ; COLLISION ; WESTERN ; BELT ; LEUKOGRANITE
WOS研究方向	Geology
语种	英语
出版者	WILEY
WOS记录号	WOS:000463807400021
资助机构	Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/91297]
专题	地质与地球物理研究所_岩石圈演化国家重点实验室
通讯作者	Xiao, Wenjiao
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing, Peoples R China 2.Univ Chinese Acad Sci, Coll Earth Sci, Beijing, Peoples R China 3.Chinese Acad Sci, Ctr Excellence Tibetan Plateau Earth Sci, Beijing, Peoples R China 4.Jahangirnagar Univ, Dept Geol Sci, Dhaka, Bangladesh 5.Univ Leicester, Dept Geol, Leicester, Leics, England 6.Univ Strasbourg, Inst Phys Globe Strasbourg, CNRS, UMR7516,EOST, Strasbourg, France
推荐引用方式 GB/T 7714	Yang, Lei,Xiao, Wenjiao,Rahman, M. Julleh Jalalur,et al. Provenance of the Cenozoic Bengal Basin sediments: Insights from U-Pb ages and Hf isotopes of detrital zircons[J]. GEOLOGICAL JOURNAL,2019,54(2):978-990.
APA	Yang, Lei.,Xiao, Wenjiao.,Rahman, M. Julleh Jalalur.,Windley, Brian F..,Schulmann, Karel.,...&Li, Rui.(2019).Provenance of the Cenozoic Bengal Basin sediments: Insights from U-Pb ages and Hf isotopes of detrital zircons.GEOLOGICAL JOURNAL,54(2),978-990.
MLA	Yang, Lei,et al."Provenance of the Cenozoic Bengal Basin sediments: Insights from U-Pb ages and Hf isotopes of detrital zircons".GEOLOGICAL JOURNAL 54.2(2019):978-990.