Early cretaceous topographic growth of the Lhasaplano, Tibetan plateau: Constraints from the Damxung conglomerate

doi:10.1002/2017JB014278

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

	Early cretaceous topographic growth of the Lhasaplano, Tibetan plateau: Constraints from the Damxung conglomerate
	Wang, Jian-Gang 1; Hu, Xiumian 2; Garzanti, Eduardo 3; Ji, Wei-Qiang 1; Liu, Zhi-Chao 4; Liu, Xiao-Chi1 ; Wu, Fu-Yuan 1
刊名	JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
	2017-07-01
卷号	122 期号:7 页码:5748-5765
ISSN号	2169-9313
DOI	10.1002/2017JB014278
文献子类	Article
英文摘要	Constraining the timing of early topographic growth on the Tibetan plateau is critical for any models of India-Asia collision, Himalayan orogeny and subsequent plateau development in the Cenozoic. Stratigraphic, sedimentological and provenance analysis of the Lower Cretaceous red-beds of the Damxung Conglomerate provide new key information to reconstruct the paleogeography and the tectonic evolution of the Lhasa terrane at the time. The over 700-m-thick Damxung Conglomerate documents distal alluvial fan to braidplain sedimentation passing upward to proximal alluvial fan sedimentation. Deposition began near sea level, as documented by limestone beds occurring at the base of the unit. Zircon U-Pb dating of interbedded tuff layers constrain deposition age at ca. 111 Ma. Abundance of volcanic clasts, Cretaceous U-Pb ages and Hf isotopes of detrital zircons yielding mainly negative eHf(t) values together with paleocurrent data indicate an active volcanic source located in the North Lhasa subterrane. Pre-Mesozoic-aged zircon, recycled quartz and (meta) sedimentary rock fragments increase up-section, indicating progressive erosional exhumation of the Paleozoic sedimentary/ metasedimentary basement. The Damxung Conglomerate thus records a significant uplift and unroofing stage in the source region, implying initial topographic growth on the Lhasa terrane at early Albian time. Early Cretaceous topographic growth on the Lhasa terrane is supported by the stratigraphic record in the Linzhou basin, the Xigaze forearc basin and the southern Nima basin. In contrast, marine strata in the central-western Lhasa terrane lasted until the early Cenomanian (ca. 96 Ma), indicating diachronous marine regression on the Lhasa terrane from east to west.
WOS关键词	XIGAZE FORE-ARC ; DETRITAL ZIRCON GEOCHRONOLOGY ; U-PB GEOCHRONOLOGY ; ZANGBO SUTURE ZONE ; SOUTHERN TIBET ; LU-HF ; FACIES ARCHITECTURE ; TECTONIC EVOLUTION ; GANGDESE BATHOLITH ; BASIN EVOLUTION
WOS研究方向	Geochemistry & Geophysics
语种	英语
出版者	AMER GEOPHYSICAL UNION
WOS记录号	WOS:000409366700052
资助机构	National Key R&D Program of China(2016YFC0600407) ; National Key R&D Program of China(2016YFC0600407) ; National Science Foundation of China(41672109 ; National Science Foundation of China(41672109 ; China Geological Survey Project(DD20160022-01) ; China Geological Survey Project(DD20160022-01) ; 41472081) ; 41472081) ; National Key R&D Program of China(2016YFC0600407) ; National Key R&D Program of China(2016YFC0600407) ; National Science Foundation of China(41672109 ; National Science Foundation of China(41672109 ; China Geological Survey Project(DD20160022-01) ; China Geological Survey Project(DD20160022-01) ; 41472081) ; 41472081) ; National Key R&D Program of China(2016YFC0600407) ; National Key R&D Program of China(2016YFC0600407) ; National Science Foundation of China(41672109 ; National Science Foundation of China(41672109 ; China Geological Survey Project(DD20160022-01) ; China Geological Survey Project(DD20160022-01) ; 41472081) ; 41472081) ; National Key R&D Program of China(2016YFC0600407) ; National Key R&D Program of China(2016YFC0600407) ; National Science Foundation of China(41672109 ; National Science Foundation of China(41672109 ; China Geological Survey Project(DD20160022-01) ; China Geological Survey Project(DD20160022-01) ; 41472081) ; 41472081)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/61916]
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	Wang, Jian-Gang
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing, Peoples R China 2.Nanjing Univ, Sch Earth Sci & Engn, State Key Lab Mineral Deposits Res, Nanjing, Jiangsu, Peoples R China 3.Univ Milano Bicocca, Dept Earth & Environm Sci, Milan, Italy 4.Sun Yat Sen Univ, Sch Earth Sci & Geol Engn, Guangzhou, Guangdong, Peoples R China
推荐引用方式 GB/T 7714	Wang, Jian-Gang,Hu, Xiumian,Garzanti, Eduardo,et al. Early cretaceous topographic growth of the Lhasaplano, Tibetan plateau: Constraints from the Damxung conglomerate[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH,2017,122(7):5748-5765.
APA	Wang, Jian-Gang.,Hu, Xiumian.,Garzanti, Eduardo.,Ji, Wei-Qiang.,Liu, Zhi-Chao.,...&Wu, Fu-Yuan.(2017).Early cretaceous topographic growth of the Lhasaplano, Tibetan plateau: Constraints from the Damxung conglomerate.JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH,122(7),5748-5765.
MLA	Wang, Jian-Gang,et al."Early cretaceous topographic growth of the Lhasaplano, Tibetan plateau: Constraints from the Damxung conglomerate".JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH 122.7(2017):5748-5765.