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DOI	10.1016/j.gr.2017.10.005
	Stable isotopes reveal southward growth of the Himalayan-Tibetan Plateau since the Paleocene
	Xu, Qiang; Ding, Lin; Spicer, Robert A.; Liu, Xiaohui; Li, Shun; Wang, Houqi
通讯作者	Xu, Q (通讯作者)
发表日期	2018
ISSN	1342-937X
EISSN	1878-0571
起始页码	50
结束页码	61
卷号	54
英文摘要	Original stable isotope compositions of carbonates representing conditions in the latest Oligocene-early Miocene Kailas and Qiabulin areas, both in southern Tibet, record Oligocene-Miocene paleoelevations of the Gangdese arc and the Himalayan orogen, and provide constraints on the formation of the Himalayan-Tibetan Plateau. Oxygen isotope compositions of bivalve shell, paleosol, and lacustrine carbonates indicate the preservation of unaltered isotopic signals of paleometeoric waters in the Kailas and Qiabulin areas, whereas the oxygen isotopic compositions of Liuqu Eocene paleosols were likely altered by paleometeoric waters. Paleoelevation estimates using oxygen isotopes indicate the Kailas area was at similar to 4.9 km during similar to 20-19 Ma and the Qiabulin Basin was at similar to 2.0 km during 24-21 Ma, but rose rapidly to similar to 4.1 km between 21 and 19 Ma. These results suggest a steep south-facing flank on the proto-Tibetan highland prior to the onset of the India-Asia collision. The Himalayan orogen began to be built against the pre-existed high (similar to 4.5 km) Gangdese Mountains in the early Eocene and obtained elevations close to those of the present by the early Miocene. We propose that the southernmost Tibetan Plateau and Himalayan orogen are the expression of an early Eocene to early Miocene southward migration of the locus of deformation. Early stage uplift is linked to the crustal thickening in the early Eocene, but the dramatic elevation gain in the early Miocene may have been caused by Indian slab rollback, break-off and coeval renewed underthrusting, behind which late Miocene to present east-west crustal extension took place. (C) 2017 International Association for Gondwana Research. Published by Elsevier B.V. All rights reserved.
关键词	INDIA-ASIA COLLISION FORE-ARC BASIN YARLUNG-ZANGBO SUTURE SOUTHERN TIBET LIUQU CONGLOMERATE LATE MIOCENE PALEOELEVATION HISTORY STRUCTURAL EVOLUTION TECTONIC EVOLUTION SOUTHWESTERN TIBET
英文关键词	Oxygen isotopes; Paleoelevation; Paleotopography; Himalayan-Tibetan Plateau
语种	英语
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:000428481300004
来源期刊	GONDWANA RESEARCH
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/259280
推荐引用方式 GB/T 7714	Xu, Qiang,Ding, Lin,Spicer, Robert A.,et al. Stable isotopes reveal southward growth of the Himalayan-Tibetan Plateau since the Paleocene[J]. 中国科学院青藏高原研究所,2018,54.
APA	Xu, Qiang,Ding, Lin,Spicer, Robert A.,Liu, Xiaohui,Li, Shun,&Wang, Houqi.(2018).Stable isotopes reveal southward growth of the Himalayan-Tibetan Plateau since the Paleocene.GONDWANA RESEARCH,54.
MLA	Xu, Qiang,et al."Stable isotopes reveal southward growth of the Himalayan-Tibetan Plateau since the Paleocene".GONDWANA RESEARCH 54(2018).