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Expansion of the Tibetan Plateau during the Neogene
The appearance of detritus shed from mountain ranges along the northern margin of the Tibetan Plateau heralds the Cenozoic development of high topography. Current estimates of the age of the basal conglomerate in the Qaidam basin place this event in Paleocene-Eocene. Here we present new magnetostrat...
Autores principales: | , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5482058/ https://www.ncbi.nlm.nih.gov/pubmed/28635970 http://dx.doi.org/10.1038/ncomms15887 |
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author | Wang, Weitao Zheng, Wenjun Zhang, Peizhen Li, Qiang Kirby, Eric Yuan, Daoyang Zheng, Dewen Liu, Caicai Wang, Zhicai Zhang, Huiping Pang, Jianzhang |
author_facet | Wang, Weitao Zheng, Wenjun Zhang, Peizhen Li, Qiang Kirby, Eric Yuan, Daoyang Zheng, Dewen Liu, Caicai Wang, Zhicai Zhang, Huiping Pang, Jianzhang |
author_sort | Wang, Weitao |
collection | PubMed |
description | The appearance of detritus shed from mountain ranges along the northern margin of the Tibetan Plateau heralds the Cenozoic development of high topography. Current estimates of the age of the basal conglomerate in the Qaidam basin place this event in Paleocene-Eocene. Here we present new magnetostratigraphy and mammalian biostratigraphy that refine the onset of basin fill to ∼25.5 Myr and reveal that sediment accumulated continuously until ∼4.8 Myr. Sediment provenance implies a sustained source in the East Kunlun Shan throughout this time period. However, the appearance of detritus from the Qilian Shan at ∼12 Myr suggests emergence of topography north of the Qaidam occurred during the late Miocene. Our results imply that deformation and mountain building significantly post-date Indo-Asian collision and challenge the suggestion that the extent of the plateau has remained constant through time. Rather, our results require expansion of high topography during the past 25 Myr. |
format | Online Article Text |
id | pubmed-5482058 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | Nature Publishing Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-54820582017-07-06 Expansion of the Tibetan Plateau during the Neogene Wang, Weitao Zheng, Wenjun Zhang, Peizhen Li, Qiang Kirby, Eric Yuan, Daoyang Zheng, Dewen Liu, Caicai Wang, Zhicai Zhang, Huiping Pang, Jianzhang Nat Commun Article The appearance of detritus shed from mountain ranges along the northern margin of the Tibetan Plateau heralds the Cenozoic development of high topography. Current estimates of the age of the basal conglomerate in the Qaidam basin place this event in Paleocene-Eocene. Here we present new magnetostratigraphy and mammalian biostratigraphy that refine the onset of basin fill to ∼25.5 Myr and reveal that sediment accumulated continuously until ∼4.8 Myr. Sediment provenance implies a sustained source in the East Kunlun Shan throughout this time period. However, the appearance of detritus from the Qilian Shan at ∼12 Myr suggests emergence of topography north of the Qaidam occurred during the late Miocene. Our results imply that deformation and mountain building significantly post-date Indo-Asian collision and challenge the suggestion that the extent of the plateau has remained constant through time. Rather, our results require expansion of high topography during the past 25 Myr. Nature Publishing Group 2017-06-21 /pmc/articles/PMC5482058/ /pubmed/28635970 http://dx.doi.org/10.1038/ncomms15887 Text en Copyright © 2017, The Author(s) http://creativecommons.org/licenses/by/4.0/ Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
spellingShingle | Article Wang, Weitao Zheng, Wenjun Zhang, Peizhen Li, Qiang Kirby, Eric Yuan, Daoyang Zheng, Dewen Liu, Caicai Wang, Zhicai Zhang, Huiping Pang, Jianzhang Expansion of the Tibetan Plateau during the Neogene |
title | Expansion of the Tibetan Plateau during the Neogene |
title_full | Expansion of the Tibetan Plateau during the Neogene |
title_fullStr | Expansion of the Tibetan Plateau during the Neogene |
title_full_unstemmed | Expansion of the Tibetan Plateau during the Neogene |
title_short | Expansion of the Tibetan Plateau during the Neogene |
title_sort | expansion of the tibetan plateau during the neogene |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5482058/ https://www.ncbi.nlm.nih.gov/pubmed/28635970 http://dx.doi.org/10.1038/ncomms15887 |
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