Chemical basis of deep-Earth physics: Emphasis on the core-mantle boundary D''

Details Chemical basis of deep-Earth physics: Emphasis on the core-mantle boundary D'' Chemical basis of deep-Earth physics: Emphasis on the core-mantle boundary D''

2011-01-26

arxiv.org/abs/1101.5085v1

Physics

Geophysics

Scientific paper

Currently popular ideas about the Earth's interior have developed almost entirely on the basis of physics. In the spirit of the United Nations' designation of 2011 as the International Year of Chemistry, I unify chemical and physical inferences for Earth-matter below the depth of 660 km. I relate by fundamental mass ratio relationships the internal parts of that region with corresponding enstatite chondrite parts, providing a quantitative basis for understanding the "seismically rough" matter at the core mantle boundary, D'', as arising from Earth-core precipitates, the "core-floaters", CaS and MgS. I suggest that the ultra-low velocity zone consists of CaS.

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