A study of conditions at the inner core boundary of the earth

Details A study of conditions at the inner core boundary of the earth A study of conditions at the inner core boundary of the earth

Mar 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981pepi...24..302l&link_type=abstract

Physics of the Earth and Planetary Interiors, Volume 24, Issue 4, p. 302-307.

Physics

63

Scientific paper

A study is made of the thermal and compositional conditions which the liquid outer core must satisfy at the inner core boundary, assuming the inner core to be growing by continual solidification of the heavy component of the liquid alloy in the outer core. It is found that the outer core is strongly destabilized by the compositional gradients driven by the separation process associated with the freezing. Further, it is argued that all the freezing necessary for the growth of the solid inner core cannot occur on a flat interface; most of it must occur above the solid boundary in a region labeled the slurry layer.

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