气候变化领域集成服务门户(CCPortal): High-elevation Tibetan Plateau before India-Eurasia collision recorded by triple oxygen isotopes

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DOI	10.1038/s41561-023-01243-x
	High-elevation Tibetan Plateau before India-Eurasia collision recorded by triple oxygen isotopes
	Ibarra, Daniel E.; Dai, Jingen; Gao, Yuan; Lang, Xinghai; Duan, Pengzhen; Gao, Zongjun; Chen, Jiquan; Methner, Katharina; Sha, Lijuan; Tong, Hui; Han, Xu; Zhu, Dicheng; Li, Yalin; Tang, Juxing; Cheng, Hai; Chamberlain, C. Page; Wang, Chengshan
发表日期	2023
ISSN	1752-0894
EISSN	1752-0908
起始页码	810
结束页码	+
卷号	16 期号:9
英文摘要	The timing and magnitude of the early Cenozoic surface uplift of the Tibetan Plateau is controversial due to a scarcity of unaltered terrestrial sediments required for palaeoaltimetry techniques. Such information is critical, however, for constraining the geodynamic and palaeoclimatic evolution of the Indian and Eurasian continents and for interpreting global climate, biodiversity and biogeochemical cycles since the Cenozoic. We find that substantial uplift occurred by 63 to 61 million years ago, before the collision of the Indian and Eurasian continental plates, based on comparison of triple oxygen isotopes of modern meteoric waters with epithermal Ag-Pb-Zn deposit quartz veins from the Palaeocene Gangdese Arc in southern Lhasa. Low Delta O-18 and Delta O-17 quartz values are consistent with precipitation from meteoric waters influenced by a large degree of topographic rainout. We show that by 63 to 61 Ma, the Gangdese Arc reached an elevation of similar to 3.5 km, suggesting that the Gangdese Arc achieved >60% of its current elevation before continent-continent collision. This uplift was probably caused by crustal shortening in response to low-angle subduction of Neo-Tethyan oceanic lithosphere. This early high palaeoelevation estimate for the Himalaya-Tibetan system challenges previous assumptions that southern Tibet uplift required continent-continent collision to achieve substantial topography.
英文关键词	SOUTHERN TIBET; ASIA COLLISION; LHASA TERRANE; GEOLOGICAL EVOLUTION; UPLIFT HISTORY; CLIMATE; WATER; CONSTRAINTS; RATIOS; FRACTIONATION
WOS研究方向	Geosciences, Multidisciplinary
WOS记录号	WOS:001045731500001
来源期刊	NATURE GEOSCIENCE
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/283608
作者单位	Brown University; Brown University; University of California System; University of California Berkeley; China University of Geosciences - Beijing; China University of Geosciences - Beijing; Chengdu University of Technology; Xi'an Jiaotong University; Shandong University of Science & Technology; Stanford University; China Geological Survey; Chinese Academy of Geological Sciences
推荐引用方式 GB/T 7714	Ibarra, Daniel E.,Dai, Jingen,Gao, Yuan,et al. High-elevation Tibetan Plateau before India-Eurasia collision recorded by triple oxygen isotopes[J],2023,16(9).
APA	Ibarra, Daniel E..,Dai, Jingen.,Gao, Yuan.,Lang, Xinghai.,Duan, Pengzhen.,...&Wang, Chengshan.(2023).High-elevation Tibetan Plateau before India-Eurasia collision recorded by triple oxygen isotopes.NATURE GEOSCIENCE,16(9).
MLA	Ibarra, Daniel E.,et al."High-elevation Tibetan Plateau before India-Eurasia collision recorded by triple oxygen isotopes".NATURE GEOSCIENCE 16.9(2023).