气候变化领域集成服务门户(CCPortal): Fault systems impede incision of the Yarlung river into the Tibetan plateau

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DOI	10.1038/s43247-023-00861-y
	Fault systems impede incision of the Yarlung river into the Tibetan plateau
	Cai, Dongxu; Wang, Xianyan; Li, Guangwei; Jiao, Ruohong; Kohn, Barry; Zhu, Wenbin; De Grave, Johan; Lu, Huayu
发表日期	2023
EISSN	2662-4435
卷号	4 期号:1
英文摘要	It is widely accepted that tectonics generally enhances river incision. However, why rivers have not incised further into orogenic plateaus to destroy terrains over long-time scales remains ambiguous. Here we hypothesize that the diverse nature of regional tectonics could have impeded river erosion, taking Yarlung River in Tibetan Plateau as a case. We constrain the incision history and effect of a tectonic rift on fluvial incision by low-temperature thermochronology. Results show focused cooling near the rift, but markedly reduced cooling in the upstream and downstream regions since similar to 7 Ma. This coincides with an episode of rapid exhumation of Eastern Himalaya Syntaxis downstream. We propose that these two co-phased tectonic systems resulting from accelerated extension of southern Tibetan Plateau prevented upstream migration of river knickpoints. Our study highlights that the activity of fault systems may hinder regional erosion, thereby facilitating the preservation of topography and high plateaus in active orogenic belts.
英文关键词	EASTERN HIMALAYAN SYNTAXIS; LATE CENOZOIC UPLIFT; SOUTHERN TIBET; GANGDESE BATHOLITH; TSANGPO GORGE; EVOLUTION; EXHUMATION; EROSION; TECTONICS; INSIGHTS
WOS研究方向	Environmental Sciences ; Geosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:001000883700001
来源期刊	COMMUNICATIONS EARTH & ENVIRONMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/283862
作者单位	Nanjing University; Nanjing University; University of Victoria; University of Melbourne; Ghent University
推荐引用方式 GB/T 7714	Cai, Dongxu,Wang, Xianyan,Li, Guangwei,et al. Fault systems impede incision of the Yarlung river into the Tibetan plateau[J],2023,4(1).
APA	Cai, Dongxu.,Wang, Xianyan.,Li, Guangwei.,Jiao, Ruohong.,Kohn, Barry.,...&Lu, Huayu.(2023).Fault systems impede incision of the Yarlung river into the Tibetan plateau.COMMUNICATIONS EARTH & ENVIRONMENT,4(1).
MLA	Cai, Dongxu,et al."Fault systems impede incision of the Yarlung river into the Tibetan plateau".COMMUNICATIONS EARTH & ENVIRONMENT 4.1(2023).