Stable isotopes reveal southward growth of the Himalayan-Tibetan Plateau since the Paleocene | |
Xu, Q (Xu, Qiang)1; Ding, L (Ding, Lin)1; Spicer, RA (Spicer, Robert A.)2,3; Liu, XH (Liu, Xiaohui)1,4; Li, S (Li, Shun)5; Wang, HQ (Wang, Houqi)1 | |
Source Publication | GONDWANA RESEARCH |
2018-02-01 | |
Volume | 54Issue:0Pages:50-61 |
DOI | 10.1016/j.gr.2017.10.005 |
Abstract | 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. |
Subject Area | 地质学 |
WOS ID | WOS:000428481300004 |
Language | 英语 |
Indexed By | SCIE |
Keyword | India-asia Collision Fore-arc Basin Yarlung-zangbo Suture Southern Tibet Liuqu Conglomerate Late Miocene Paleoelevation History Structural Evolution Tectonic Evolution Southwestern Tibet |
WOS Research Area | Geology |
WOS Subject | Geosciences, Multidisciplinary |
Cooperation Status | 国际 |
ISSN | 1342-937X |
Department | 大陆碰撞与高原隆升重点实验室 |
Publisher | ELSEVIER SCIENCE BV |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.itpcas.ac.cn/handle/131C11/8729 |
Collection | 图书馆 |
Corresponding Author | Xu, Q (Xu, Qiang) |
Affiliation | 1.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Continental Collis & Plateau Uplift, Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China; 2.[Spicer, Robert A.] Chinese Acad Sci, Xishuangbanna Trop Bot Garden, Menglun 666303, Yunnan, Peoples R China; 3.[Spicer, Robert A.] Open Univ, Sch Environm Earth & Ecosyst Sci, Milton Keynes MK7 6AA, Bucks, England; 4.Univ Chinese Acad Sci, Beijing 100085, Peoples R China; 5.Sun Yat Sen Univ, Sch Earth Sci & Geol Engn, Guangzhou 510275, Guangdong, Peoples R China. |
Recommended Citation GB/T 7714 | Xu, Q ,Ding, L ,Spicer, RA ,et al. Stable isotopes reveal southward growth of the Himalayan-Tibetan Plateau since the Paleocene[J]. GONDWANA RESEARCH,2018,54(0):50-61. |
APA | Xu, Q ,Ding, L ,Spicer, RA ,Liu, XH ,Li, S ,&Wang, HQ .(2018).Stable isotopes reveal southward growth of the Himalayan-Tibetan Plateau since the Paleocene.GONDWANA RESEARCH,54(0),50-61. |
MLA | Xu, Q ,et al."Stable isotopes reveal southward growth of the Himalayan-Tibetan Plateau since the Paleocene".GONDWANA RESEARCH 54.0(2018):50-61. |
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