气候变化领域集成服务门户(CCPortal): The finalization of the modern drainage pattern of the Tarim Basin: Insights from petrology and detrital zircon geochronology of sediments from Lop Nur

CCPortal

DOI	10.1016/j.catena.2021.105473
	The finalization of the modern drainage pattern of the Tarim Basin: Insights from petrology and detrital zircon geochronology of sediments from Lop Nur
	Lu, Fenglin; Zhang, Hua; Liu, Chenglin; Jiao, Pengcheng; Zhao, Yanjun; Ge, Yi
通讯作者	Zhang, H (通讯作者)
发表日期	2021
ISSN	0341-8162
EISSN	1872-6887
卷号	205
英文摘要	The Tarim Basin is the largest arid inland-river basin in China. Although drainage patterns of the basin provide crucial information on the hinterland evolution, the basin-wide river network evolution in this arid region is still poorly understood. This contribution uses a detailed study of the petrology and zircon U-Pb geochronology of sediments from Lop Nur to reconstruct the late Quaternary drainage evolution and source-sink relations of the Tarim Basin. Results reveal a relatively constant and stable sediment supply from the Tianshan Mountains until the middle Pleistocene. Negligible contribution from the Pamirs and Kunlun Mountains, suggests coeval rivers draining the western basin were likely in a premature state with limited propagation toward the basin interior, despite Lop Nur as the rivers' terminus of the Tarim Basin. This suggested drainage pattern is different from that observed in the historical past or today with rivers draining the western basin crossing the Taklamakan Desert and reaching Lop Nur either after converging into the Tarim River or following separate courses. Combined with reported modern river sediments, ages of river terraces, stratigraphic records and palaeoenvironmental inferences, we tentatively suggest that the modern drainage pattern of the Tarim Basin was likely finalized in the late early Pleistocene or even afterward. Therefore, the ranges along the western Tarim Basin must have experienced fast and strong erosion since the late early Pleistocene that resulted in the steep topography and deep incision of these rivers. Subsequent transport of large quantities of sediment materials into the basin formed the vast and thick deposits of the Taklamakan Desert in a relatively short period of time.
关键词	ALTYN-TAGH FAULT U-PB AGES NORTHWEST CHINA TIBETAN PLATEAU KERIYA RIVER NW CHINA EVOLUTION PROVENANCE DESERT CONNECTIVITY
英文关键词	Drainage system; River sediments; Source to sink; Quaternary; NW China
语种	英语
WOS研究方向	Geology ; Agriculture ; Water Resources
WOS类目	Geosciences, Multidisciplinary ; Soil Science ; Water Resources
WOS记录号	WOS:000659891800019
来源期刊	CATENA
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/260217
推荐引用方式 GB/T 7714	Lu, Fenglin,Zhang, Hua,Liu, Chenglin,et al. The finalization of the modern drainage pattern of the Tarim Basin: Insights from petrology and detrital zircon geochronology of sediments from Lop Nur[J]. 中国科学院青藏高原研究所,2021,205.
APA	Lu, Fenglin,Zhang, Hua,Liu, Chenglin,Jiao, Pengcheng,Zhao, Yanjun,&Ge, Yi.(2021).The finalization of the modern drainage pattern of the Tarim Basin: Insights from petrology and detrital zircon geochronology of sediments from Lop Nur.CATENA,205.
MLA	Lu, Fenglin,et al."The finalization of the modern drainage pattern of the Tarim Basin: Insights from petrology and detrital zircon geochronology of sediments from Lop Nur".CATENA 205(2021).