气候变化领域集成服务门户(CCPortal): Paleogene sediment provenance in the Gaize Basin: Implications for early Cenozoic paleogeography of central Tibet

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DOI	10.1016/j.palaeo.2023.111860
	Paleogene sediment provenance in the Gaize Basin: Implications for early Cenozoic paleogeography of central Tibet
	Song, Bowen; Zhang, Kexin; Wei, Yi; Jiang, Gaolei; Yang, Tinglu; Algeo, Thomas J.; Wang, Jiaxuan; Han, Fang
发表日期	2023
ISSN	0031-0182
EISSN	1872-616X
卷号	632
英文摘要	A comprehensive study of the sediment source-to-sink history of basins arranged along the Bangong-Nujiang Suture Zone (BNSZ) is critical for understanding the early Cenozoic topography and drainage systems of central Tibet and its implications for the uplift history of the Tibetan Plateau. Nevertheless, previous provenance analyses work mainly focused on the middle-eastern segment of the BNSZ, those Paleogene basins in the western segment have received less attention, which hinders a full understanding of the early Cenozoic topography of central Tibet. In this study, based on a chronostratigraphic framework developed for the lower Cenozoic continental redbeds of the Gaize Basin, we applied detrital zircon U-Pb geochronology to the well-exposed Paleogene Suonahu Formation in order to reconstruct the basin's source-to-sink history. Integrating these new data with detrital zircon U-Pb results from the underlying Kangtuo Formation, we recognize a major secular shift in sediment provenance characterized by inputs of Lhasa-derived clasts during the Late Eocene. Moreover, we applied statistical analysis to compare the U-Pb age spectra of Eocene strata in the Gaize-Nima-Lunpola basins in order to assess similarities between them and potential source regions. Our study confirms a paleogeographic scenario in which these Paleogene basins most likely were part of a low-elevation intermontane valley.
关键词	Detrital zircon Geochronology Sediment provenance Bangong-Nujiang Eocene
英文关键词	ZIRCON U-PB; TRACE-ELEMENT GEOCHEMISTRY; NORTHERN LHASA TERRANE; HOH XIL BASIN; SOUTHERN TIBET; LUNPOLA BASIN; QIANGTANG TERRANE; NIUBAO FORMATION; COOLING HISTORY; UPLIFT HISTORY
WOS研究方向	Geography, Physical ; Geosciences, Multidisciplinary ; Paleontology
WOS记录号	WOS:001103169600001
来源期刊	PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/282972
作者单位	China University of Geosciences - Wuhan; China University of Geosciences - Wuhan; North China Institute Science & Technology; China Geological Survey; Chinese Academy of Geological Sciences; Institute of Hydrogeology & Environmental Geology, Chinese Academy of Geological Sciences; East China University of Technology; University System of Ohio; University of Cincinnati; China University of Geosciences - Wuhan; Jiangxi Normal University
推荐引用方式 GB/T 7714	Song, Bowen,Zhang, Kexin,Wei, Yi,et al. Paleogene sediment provenance in the Gaize Basin: Implications for early Cenozoic paleogeography of central Tibet[J],2023,632.
APA	Song, Bowen.,Zhang, Kexin.,Wei, Yi.,Jiang, Gaolei.,Yang, Tinglu.,...&Han, Fang.(2023).Paleogene sediment provenance in the Gaize Basin: Implications for early Cenozoic paleogeography of central Tibet.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,632.
MLA	Song, Bowen,et al."Paleogene sediment provenance in the Gaize Basin: Implications for early Cenozoic paleogeography of central Tibet".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 632(2023).