Dissociation reaction in forsterite under shock compression

Details Dissociation reaction in forsterite under shock compression Dissociation reaction in forsterite under shock compression

Oct 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981sci...214..177s&link_type=abstract

Science, vol. 214, Oct. 9, 1981, p. 177-179.

Computer Science

20

Compression Loads, Czochralski Method, Forsterite, Perovskites, Rock Mechanics, Shock Loads, Chemical Analysis, Earth Core, Electron Microscopy, Microstructure, Mineralogy, Olivine, Stress Distribution

Scientific paper

Transmission electron microscopic observation of forsterite (Mg2SiO4) shocked to peak pressures of 78 to 92 gigapascals reveal that forsterite breaks down to an assemblage of MgO plus MgSiO3 glass. This is considered to give strong support to the interpretation that the high-pressure phase of forsterite under shock compression is due to the assemblage of MgSiO3 perovskite plus MgO. In the experiments, a two-stage light gas gun 9 m long with a launcher 2 cm in diameter is used.

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