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

M. J. Unsworth (), A. G. Jones, W. Wei, G. Marquis, S. G. Gokarn and J. E. Spratt
Additional contact information
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

Nature, 2005, vol. 438, issue 7064, 78-81

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.

Date: 2005
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DOI: 10.1038/nature04154

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