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DOI	10.1029/2020GL089202
	Quantitatively Tracking the Elevation of the Tibetan Plateau Since the Cretaceous: Insights From Whole-Rock Sr/Y and La/Yb Ratios
	Hu F.; Wu F.; Chapman J.B.; Ducea M.N.; Ji W.; Liu S.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:15
英文摘要	Crustal thickness, elevation, and Sr/Y and (La/Yb)N of magmatic rocks are strongly correlated for subduction-related and collision-related mountain belts. We quantitatively constrain the paleo-elevation of the Tibetan Plateau since the Cretaceous using empirically derived equations. The results are broadly consistent with previous estimates based on stable isotope and structural analyses, supporting a complex uplift history. Our data suggest that a protoplateau formed in central Tibet during the Late Cretaceous and was higher than the contemporaneous Gangdese arc. This protoplateau collapsed before the India-Asia collision, during the same time period that elevation in southern Tibet was increasing. During the India-Asia collision, northern and southern Tibet were uplifted first followed by renewed uplift in central Tibet, which suggests a more complicated uplift history than commonly believed. We contend that a broad paleovalley formed during the Paleogene in central Tibet and that the whole Tibetan Plateau reached present-day elevations during the Miocene. © 2020. American Geophysical Union. All Rights Reserved.
英文关键词	Earth sciences; Geophysics; Crustal thickness; Late cretaceous; Magmatic rock; Mountain belts; Southern Tibet; Stable isotopes; Tibetan Plateau; Time-periods; Structural geology; continental collision; Cretaceous; magmatic differentiation; mountain; orogenic belt; Paleogene; quantitative analysis; stable isotope; uplift; China; India; Qinghai-Xizang Plateau
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/169980
作者单位	State Key Laboratory of Lithospheric Evolution, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China; Department of Geosciences, University of Arizona, Tucson, AZ, United States; College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing, China; Innovation Academy for Earth Science, Chinese Academy of Sciences, Beijing, China; Department of Geology and Geophysics, University of Wyoming, Laramie, WY, United States; Faculty of Geology and Geophysics, University of Bucharest, Bucharest, Romania; Key Laboratory of Orogenic Belts and Crustal Evolution, Ministry of Education, School of Earth and Space Sciences, Peking University, Beijing, China
推荐引用方式 GB/T 7714	Hu F.,Wu F.,Chapman J.B.,et al. Quantitatively Tracking the Elevation of the Tibetan Plateau Since the Cretaceous: Insights From Whole-Rock Sr/Y and La/Yb Ratios[J],2020,47(15).
APA	Hu F.,Wu F.,Chapman J.B.,Ducea M.N.,Ji W.,&Liu S..(2020).Quantitatively Tracking the Elevation of the Tibetan Plateau Since the Cretaceous: Insights From Whole-Rock Sr/Y and La/Yb Ratios.Geophysical Research Letters,47(15).
MLA	Hu F.,et al."Quantitatively Tracking the Elevation of the Tibetan Plateau Since the Cretaceous: Insights From Whole-Rock Sr/Y and La/Yb Ratios".Geophysical Research Letters 47.15(2020).