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On the inhomogeneity of the transition surface layer of the solid core of the earth

On the inhomogeneity of the transition surface layer of the solid core of the earth Abstract Different geophysical data and conclusions of theoretical models, which can give information about the behavior of the solid and liquid cores of the Earth as well as about the existence of a transition layer as a temperature-hysteresis region at a relatively weak first-order phase transition, are compared. It is concluded that liquid inclusions inevitably exist in this region; these inclusions are involved (due to the complex convective processes occurring in the liquid core) in the transport of light materials from some areas of the solid-core surface. The porosity and permeability of the transition layer determine the seismic acoustic inhomogeneities in these areas, which contact the convective flows in the liquid core. In particular, this explains the well-known “east-west” effect. Obviously, the model of the crystalline core is not the only possible alternative for a model of a core with a metallic glasslike structure. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Crystallography Reports Springer Journals

On the inhomogeneity of the transition surface layer of the solid core of the earth

Crystallography Reports , Volume 57 (3): 7 – May 1, 2012

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References (30)

Publisher
Springer Journals
Copyright
2012 Pleiades Publishing, Ltd.
ISSN
1063-7745
eISSN
1562-689X
DOI
10.1134/s1063774512010105
Publisher site
See Article on Publisher Site

Abstract

Abstract Different geophysical data and conclusions of theoretical models, which can give information about the behavior of the solid and liquid cores of the Earth as well as about the existence of a transition layer as a temperature-hysteresis region at a relatively weak first-order phase transition, are compared. It is concluded that liquid inclusions inevitably exist in this region; these inclusions are involved (due to the complex convective processes occurring in the liquid core) in the transport of light materials from some areas of the solid-core surface. The porosity and permeability of the transition layer determine the seismic acoustic inhomogeneities in these areas, which contact the convective flows in the liquid core. In particular, this explains the well-known “east-west” effect. Obviously, the model of the crystalline core is not the only possible alternative for a model of a core with a metallic glasslike structure.

Journal

Crystallography ReportsSpringer Journals

Published: May 1, 2012

Keywords: Crystallography and Scattering Methods

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