Eocene Tibetan plateau remnants preserved in the northwest Himalaya

Peter Van Der Beek, Jérémie Van Melle, Stéphane Guillot, Arnaud Pcher, Peter W Reiners, Stefan Nicolescu, Mohammad Latif

Research output: Contribution to journalArticle

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Abstract

The northwest Himalaya shows strongly contrasting relief. Deeply incised mountain ranges that are characterized by extremely rapid exhumation and some of the highest peaks in the world are in contrast with high-elevation, low-relief areas such as the Deosai plateau in northern Pakistan, which lies at an altitude of 4,000 m. The origin and evolution of such plateau regions at the convergence of the most active continental collision in the world remain elusive. Here we report low-temperature thermochronology data from the Deosai plateau and use thermal history modelling to show that the plateau has undergone continuous slow denudation at rates below 250 m Myr 1 for the past 35 Myr at least. This finding suggests tectonic and morphologic stability of the plateau since at least Eocene times, only 15-20 Myr after the onset of the India-Asia collision. Our work contradicts the hypothesis that widespread low-relief surfaces in the northwest Himalaya result from efficient kilometre-scale glacial erosion during Quaternary times. We show that similarly stable surfaces exist throughout the entire northwest Himalaya and share common morphologic characteristics and denudation histories, which are comparable to those of the western Tibetan plateau. Our results suggest that these surfaces are preserved remnants of an Eocene southwestern Tibetan plateau that was more extensive than today.

Original languageEnglish (US)
Pages (from-to)364-368
Number of pages5
JournalNature Geoscience
Volume2
Issue number5
DOIs
StatePublished - May 2009

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Eocene
plateau
relief
denudation
thermochronology
glacial erosion
continental collision
history
exhumation
collision
tectonics
modeling
world

ASJC Scopus subject areas

  • Earth and Planetary Sciences(all)

Cite this

Van Der Beek, P., Van Melle, J., Guillot, S., Pcher, A., Reiners, P. W., Nicolescu, S., & Latif, M. (2009). Eocene Tibetan plateau remnants preserved in the northwest Himalaya. Nature Geoscience, 2(5), 364-368. https://doi.org/10.1038/ngeo503

Eocene Tibetan plateau remnants preserved in the northwest Himalaya. / Van Der Beek, Peter; Van Melle, Jérémie; Guillot, Stéphane; Pcher, Arnaud; Reiners, Peter W; Nicolescu, Stefan; Latif, Mohammad.

In: Nature Geoscience, Vol. 2, No. 5, 05.2009, p. 364-368.

Research output: Contribution to journalArticle

Van Der Beek, P, Van Melle, J, Guillot, S, Pcher, A, Reiners, PW, Nicolescu, S & Latif, M 2009, 'Eocene Tibetan plateau remnants preserved in the northwest Himalaya', Nature Geoscience, vol. 2, no. 5, pp. 364-368. https://doi.org/10.1038/ngeo503
Van Der Beek P, Van Melle J, Guillot S, Pcher A, Reiners PW, Nicolescu S et al. Eocene Tibetan plateau remnants preserved in the northwest Himalaya. Nature Geoscience. 2009 May;2(5):364-368. https://doi.org/10.1038/ngeo503
Van Der Beek, Peter ; Van Melle, Jérémie ; Guillot, Stéphane ; Pcher, Arnaud ; Reiners, Peter W ; Nicolescu, Stefan ; Latif, Mohammad. / Eocene Tibetan plateau remnants preserved in the northwest Himalaya. In: Nature Geoscience. 2009 ; Vol. 2, No. 5. pp. 364-368.
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