Equation of state of CaSiO3 perovskite to 96 GPa

Details Equation of state of CaSiO3 perovskite to 96 GPa Equation of state of CaSiO3 perovskite to 96 GPa

Nov 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989georl..16.1351t&link_type=abstract

Geophysical Research Letters (ISSN 0094-8276), vol. 16, Nov. 1989, p. 1351-1354.

Physics

29

Calcium Silicates, Equations Of State, Laser Heating, Perovskites, Synthesis (Chemistry), Chemical Analysis, Earth Mantle, High Pressure

Scientific paper

The CaSiO3 perovskite has been synthesized in a laser-heated diamond-anvil cell at initial pressures ranging from 15 to 85 GPa. Chemical microanalyses of the quenched product show negligible solubility in the CaSiO3 perovskite of aluminum from the ruby added for pressure measurements. The compression of CaSiO3 perovskite has been measured to 96 GPa with X-ray methods. This perovskite may be an 'invisible' component of the lower mantle in view of the similarity of its density with that given by the standard earth model, PREM.

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