High pressure cosmochemistry applied to major planetary interiors: Experimental studies

Details High pressure cosmochemistry applied to major planetary interiors: Experimental studies High pressure cosmochemistry applied to major planetary interiors: Experimental studies

May 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985ucla.reptq....n&link_type=abstract

Status Report California Univ., Los Angeles. Dept. of Chemistry and Biochemistry.

Other

Cosmochemistry, Emission Spectra, Experimentation, High Pressure, Phase Diagrams, Planetary Composition, Adiabatic Conditions, Anvils, Chemiluminescence, Molecular Spectra, X Ray Diffraction

Scientific paper

The measurement of equilibria in binary fluid-solid systems in diamond anvil cells, represents a major advance of the art of high-pressure experimentation. Vibrational spectroscopy, direct visual observations, and X-ray diffraction crystallography of materials confined in externally heated cells are the primary experimental probes being used. Adiabats in these systems are being measured in order to constrain models of heat flow in these bodies and to detect phase transitions by thermal anomalies. Other studies are directed toward interpreting high pressure reactions in these systems that are suggested by shockwave measurements, and developing methods for reaching high temperatures and high pressures of planetary interest in diamond cells. The overall objective of this project is to determine the properties of the H2-He-H2O-HN3-CH4 system and related small-molecule systems that are needed to constrain theoretical models of the interiors of the major planets.

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