Computer Science
Scientific paper
Jun 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990gecoa..54.1729c&link_type=abstract
Geochimica et Cosmochimica Acta (ISSN 0016-7037), vol. 54, June 1990, p. 1729-1743.
Computer Science
20
Iron Meteorites, Meteoritic Composition, Palladium Isotopes, Protoplanets, Silver Isotopes, Interstellar Matter, Recrystallization, Meteorites, Protoplanets, Isotopes, Composition, Silver 107, Melting, Palladium 107, Iron Meteorites, Isotopic Ratios, Gibon, Parent Bodies, Iva Irons, Santa Clara, Ivb Irons, Drp Meteorites, Iib Irons, Silver, Timescale, Cooling, Nucleosynthesis, Metal, Sulfide, Decay, Heat, Mundrabilla, Samples, Meteorite, Laboratory Studies, Procedure, Catalogs, Data, Octahedrites, Diagrams,
Scientific paper
Results are presented on the isotopic composition of Ag and the concentrations of Pd and Ag in metal and sulfide phases in iron meteorites Gibeon, Derrick Peak, and Mundrabilla and in schereibersite in Derrick Peak. It was found that almost all iron meteorite samples with a ratio of Pd-108/Ag-109 greater than about 400 had an excess of Ag-107. The results, in conjunction with the data of Chen and Wasserburg (1983) on IIIA-IIIB meteorites, demonstrate the widespread occurrence of excess Ag-107 in diverse types of small early planetary bodies. The excess Ag-107 is believed to be produced by the decay of Pd-107.
Chen Jacqueline H.
Wasserburg Gerald J.
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