No mafic layer in 80 km thick Tibetan crust

Gaochun Wang, Hans Thybo () and Irina M. Artemieva ()
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Gaochun Wang: Chinese Academy of Sciences
Hans Thybo: Istanbul Technical University
Irina M. Artemieva: China University of Geosciences

Nature Communications, 2021, vol. 12, issue 1, 1-9

Abstract: Abstract All models of the magmatic and plate tectonic processes that create continental crust predict the presence of a mafic lower crust. Earlier proposed crustal doubling in Tibet and the Himalayas by underthrusting of the Indian plate requires the presence of a mafic layer with high seismic P-wave velocity (Vp > 7.0 km/s) above the Moho. Our new seismic data demonstrates that some of the thickest crust on Earth in the middle Lhasa Terrane has exceptionally low velocity (Vp

Date: 2021
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DOI: 10.1038/s41467-021-21420-z

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