News and Views
Nature Geoscience 2, 10 - 11 (2009)
doi:10.1038/ngeo398
Subject Categories: Seismology | Structural geology, tectonics and geodynamics
Geophysics: Going with the mantle flow
Maureen D. Long1
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Maureen D. Long is at the Department of Geology and Geophysics, Yale University, PO Box 208109, New Haven, Connecticut 06520, USA.
e-mail: maureen.long@yale.edu
Abstract
Measurements of directional travel speed of seismic waves constrain flow in the upper mantle. Laboratory experiments suggest that high pressure can change the mantle's mineral alignment, leading to a 90° offset in the direction of the fastest seismic waves.
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