``Skewness'' of S-wave velocity in the mantle

Details ``Skewness'' of S-wave velocity in the mantle ``Skewness'' of S-wave velocity in the mantle

Mar 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999georl..26..791y&link_type=abstract

Geophysical Research Letters, Volume 26, Issue 6, p. 791-794

Physics

9

Tectonophysics: Dynamics, Convection Currents And Mantle Plumes, Tectonophysics: Heat Generation And Transport, Tectonophysics: Tomography

Scientific paper

We analyze tomographic models of the S-wave velocity in the mantle. The depth variation of laterally heterogeneous structure is parametrized in terms of the ``skewness,'' which yields information on mantle convection. Recent models show negative skewness in the lower half of the mantle. Assuming that the velocity anomaly is related to the temperature anomaly, this suggests that there is significant heat flow from the core.

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