Computer Science
Scientific paper
Nov 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990gecoa..54.3197h&link_type=abstract
Geochimica et Cosmochimica Acta (ISSN 0016-7037), vol. 54, Nov. 1990, p. 3197-3208.
Computer Science
23
Iron Meteorites, Iron Oxides, Meteoritic Composition, Neutron Activation Analysis, Petrography, Silicates, Arsenic, Basalt, Copper, Gallium, Gold, Iridium, Iron, Nickel, Pyroxenes, Rhenium, Tungsten
Scientific paper
The compositions of large metal nodules in 12 mesosiderites, ranging from 3 mm to 4 cm in minimum dimensions and from 10 to 200 mg/g in silicate content, were analyzed by neutron activation; also analyzed were two additional samples (Pennyweight Point and Murchison Downs) which were originally designated iron meteorites but were later classified as Mes nodules. It was found that mesosiderites subgroups classified on the basis of metal composition are virtually the same as those based on silicate composition. The general covariation of the silicate and the metal compositional characteristics suggests that these features were established in the same process or in linked processes. A mesosiderite formation model is proposed.
Hassanzadeh Jamshid
Rubin Alan E.
Wasson John T.
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