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Crustal rheology of the Himalaya and Southern Tibet inferred from magnetotelluric data

Author

Listed:
  • M. J. Unsworth

    (University of Alberta)

  • A. G. Jones

    (Dublin Institute for Advanced Studies)

  • W. Wei

    (China University of Geosciences)

  • G. Marquis

    (University of Strasbourg)

  • S. G. Gokarn

    (Indian Institute of Geomagnetism)

  • J. E. Spratt

    (Dublin Institute for Advanced Studies)

Abstract

Plate tectonics in action The collision between the Indian and Asian continents, which began about 70 million years ago, involved a convergence of at least 1,400 km and raised the Tibetan plateau, since crustal material is too buoyant to be transported downwards into the Earth's interior. The mechanisms at work in plateau formation are important in understanding the evolution of the continents, yet still a matter of debate. Geophysical observations in the Himalaya and Tibet using ultra-low-frequency radio waves now reveal that a partially molten layer is present along the entire length of the Himalaya. This weak layer implies that widespread crustal flow is occurring and explains many features of plateau evolution.

Suggested Citation

  • M. J. Unsworth & A. G. Jones & W. Wei & G. Marquis & S. G. Gokarn & J. E. Spratt, 2005. "Crustal rheology of the Himalaya and Southern Tibet inferred from magnetotelluric data," Nature, Nature, vol. 438(7064), pages 78-81, November.
  • Handle: RePEc:nat:nature:v:438:y:2005:i:7064:d:10.1038_nature04154
    DOI: 10.1038/nature04154
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    Cited by:

    1. Baohua Zhang & Hongzhan Fei & Jianhua Ge & Lingsen Zeng & Qunke Xia, 2022. "Crustal melting in orogenic belts revealed by eclogite thermal properties," Nature Communications, Nature, vol. 13(1), pages 1-9, December.
    2. Zhipeng Zhou & Hans Thybo & Irina M. Artemieva & Timothy Kusky & Chi-Chia Tang, 2024. "Crustal melting and continent uplift by mafic underplating at convergent boundaries," Nature Communications, Nature, vol. 15(1), pages 1-9, December.
    3. Chaofeng Wu & Xiangyun Hu & Guiling Wang & Yufei Xi & Wenjing Lin & Shuang Liu & Bo Yang & Jianchao Cai, 2018. "Magnetotelluric Imaging of the Zhangzhou Basin Geothermal Zone, Southeastern China," Energies, MDPI, vol. 11(8), pages 1-15, August.
    4. Zhanwu Lu & Xiaoyu Guo & Rui Gao & Michael Andrew Murphy & Xingfu Huang & Xiao Xu & Sanzhong Li & Wenhui Li & Junmeng Zhao & Chunsen Li & Bo Xiang, 2022. "Active construction of southernmost Tibet revealed by deep seismic imaging," Nature Communications, Nature, vol. 13(1), pages 1-8, December.

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