An unequilibrated inclusion in the Romero (H3-4) chondrite

Details An unequilibrated inclusion in the Romero (H3-4) chondrite An unequilibrated inclusion in the Romero (H3-4) chondrite

Mar 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983metic..18...51g&link_type=abstract

Meteoritics (ISSN 0026-1114), vol. 18, March 31, 1983, p. 51-61.

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4

Chondrites, Meteoritic Composition, Chemical Composition, Meteoritic Microstructures, Photomicrographs, Meteorites, H Chondrites, Romero, Inclusions, Matrix, Metals, Oxides, Olivines, Quenching, Texture, Calcium, Pyroxene, Chromium, Formation, Mineralogy, Abundance, Composition, Equilibration, Composition

Scientific paper

Within the chondritic matrix of Romero (H3-4) is a metal-poor inclusion consisting largely of olivines showing quench textures, minor low-Ca pyroxene and rare metal and sulfide. The olivines within this inclusion have the dominant composition Fa8 with a range Fa(7.5-17). The matrix (Romero host) olivines are, in the main, equilibrated with an average composition of Fa18, but are lower in CaO and Cr2O3 than the inclusion olivines. The high chromium content of the inclusion olivines suggests that they formed under conditions different from those represented by the other olivines in Romero.

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