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Seismic heterogeneity in the upper mantle
Journal of Geophysical Research: Solid Earth, 1994This paper gives an overview of recent seismological evidence on heterogeneity in the upper mantle. While there is a growing consensus among seismologists on the low‐order spherical harmonic expansion of upper mantle structure, short‐ and intermediate‐wavelength features remain the subject of intense debate.
G. Nolet, S. P. Grand, B. L. N. Kennett
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Heterogeneity of the Upper Mantle: ABSTRACT
AAPG Bulletin, 1963In their investigations of the interior of the earth, geophysicists have generally regarded the mantle as composed of homogeneous shells and have considered the crust of the earth as varying laterally in composition and thickness. Evidence from measurements of the gravitational field and of the heat flow to the surface have suggested that differences ...
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Compositional heterogeneity in the mantle transition zone
Nature Reviews Earth & Environment, 2022Saskia Goes +2 more
exaly
The survival of mantle geochemical heterogeneities
2005The survival of mantle geochemical heterogeneities depends on the relative values of the residence times of individual elements in the mantle and of the scale-dependent mixing rate imposed by convection. Major and trace element data on fresh glasses from the PETDB data base were compiled to extract statistics on MORB compositions. It was found that the
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HETEROGENEITY OF THE UPPER MANTLE
International Geology Review, 1992A. V. Yegorkin, S. L. Kostyuchenko
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Geochemistry: Mantle heterogeneity and convection
Nature, 1983H. Bougault +4 more
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