Computer Science
Scientific paper
Dec 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983polre..30..237n&link_type=abstract
(National Institute of Polar Research, Symposium on Antarctic Meteorites, 8th, Tokyo, Japan, Feb. 17-19, 1983) National Institut
Computer Science
Analytical Chemistry, Chemical Analysis, Iron Meteorites, Meteoritic Composition, Abundance, Antarctic Regions, Cobalt, Nickel, Phosphorus, Sulfur
Scientific paper
Three Antarctic iron meteorites, Yamato-790724, ALH-77263 and ALH-77289 have been studied from the viewpoint analytical chemistry. Fourteen elements, Ni, Co, P, As, Au, Cr, Ga, Ge, Ir, Pt, Re, Ru, Sb, and W were determined. From the results, Yamato-790724 was classified into Group IIIA. ALH-77236 and ALH-77289 were classified into Group I. The elemental distributions of Ni, Co, P and S in the three meteorites were examined. Phosphide, (Fe, Ni)3P and sulphides and FeS and FeCr2S4, were detected. The morphology of the compounds was observed and their distribution was measured. Consideration is given to the facet pits formed by the etching method and the orientations. Twinned structures found in ALH-77289 are considered to have been caused by strong mechanical shock.
Masuda Akimasa
Nagata Takahiro
Taguchi Isamu
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