气候变化领域集成服务门户(CCPortal): The Late Cretaceous source-to-sink system at the eastern margin of the Tibetan Plateau: Insights from the provenance of the Lanping Basin

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DOI	10.1016/j.gsf.2020.11.002
	The Late Cretaceous source-to-sink system at the eastern margin of the Tibetan Plateau: Insights from the provenance of the Lanping Basin
	Wang, Licheng; Shen, Lijian; Liu, Chenglin; Chen, Ke; Ding, Lin; Wang, Chengshan
通讯作者	Wang, LC (通讯作者)
发表日期	2021
ISSN	1674-9871
卷号	12 期号:3
英文摘要	The surface uplift of the Tibetan Plateau (TP) and its geomorphology evolution has triggered aridification of Asia's interior and drainage development at the eastern margin of the plateau. However, how the pre-Cenozoic early growth histories of the TP impact the drainage system and climate is poorly constrained. The Late Mesozoic Lacustrine evaporite-bearing basins on the eastern margin of the TP record significant information on the uplift of the source terranes, source-to-sink system development and climate change. In this study, we presented detrital zircon U-Pb ages from the Upper Cretaceous Yunlong Formation in the Lanping Basin, as well as Hf isotopic, petrographic, direct statistical, and multidimensional scaling analyses, and use them to characterize the provenance and reconstruct the drainage system. All of the samples have five major age peaks at 200-290 Ma, 400-490 Ma, 750-1000 Ma, 1750-1950 Ma, and 2400-2600 Ma with mostly negative epsilon(Hf)(t) values (81%). We infer the sediments are primarily derived from recycled sediments of the Songpan-Garze terrane, and partly from the Sichuan Basin and the Southern Qiangtang terrane, aswell as the exposed magmatic rocks of the Yidun Arc and Songpan-Garze terrane. The provenance features of the contemporaneous sediments from the Sichuan, Xichang, Chuxiong, and Simao basins indicate a complex hierarchical drainage pattern on the eastern margin of the TP during the Late Cretaceous. The hierarchical drainage system exhibits a complete gradational cycle of lake-basin types from overfilled freshwater Sichuan Basin through balanced fill saline Xichang Basin and underfilled hypersaline Chuxiong, Lanping, Simao, and Khorat Plateau basins from proximal to distal. The early growth of the TP primarily controlled the drainage and lake-basin evolution by not only causing the uplift and exhumation of the source areas and providing large amounts of clastic material to the proximal sub-drainage areas but also intensifying the aridity and deposition of evaporites. (C) 2021 ChinaUniversity of Geosciences (Beijing) and Peking University. Production and hosting by Elsevier B.V.
关键词	ZIRCON U-PB GARZE FOLD BELT PALEOZOIC SEDIMENTARY-ROCKS SOUTHERN LANCANGJIANG ZONE ARC/BACK-ARC ASSEMBLAGES SW CHINA IMPLICATIONS DETRITAL ZIRCON TECTONIC EVOLUTION HF ISOTOPE WESTERN YUNNAN
英文关键词	Detrital Zircons; Drainage; Late Cretaceous; Source-to-sink; Lacustrine Basin; Tibetan Plateau
语种	英语
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:000636463500019
来源期刊	GEOSCIENCE FRONTIERS
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/260260
推荐引用方式 GB/T 7714	Wang, Licheng,Shen, Lijian,Liu, Chenglin,et al. The Late Cretaceous source-to-sink system at the eastern margin of the Tibetan Plateau: Insights from the provenance of the Lanping Basin[J]. 中国科学院青藏高原研究所,2021,12(3).
APA	Wang, Licheng,Shen, Lijian,Liu, Chenglin,Chen, Ke,Ding, Lin,&Wang, Chengshan.(2021).The Late Cretaceous source-to-sink system at the eastern margin of the Tibetan Plateau: Insights from the provenance of the Lanping Basin.GEOSCIENCE FRONTIERS,12(3).
MLA	Wang, Licheng,et al."The Late Cretaceous source-to-sink system at the eastern margin of the Tibetan Plateau: Insights from the provenance of the Lanping Basin".GEOSCIENCE FRONTIERS 12.3(2021).