Computer Science
Scientific paper
Jul 1980
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980e%26psl..48..335n&link_type=abstract
Earth and Planetary Science Letters, vol. 48, no. 2, July 1980, p. 335-347.
Computer Science
5
Carbonaceous Chondrites, Chemical Evolution, Meteoritic Composition, Murray Meteorite, Xenon Isotopes, Abundance, Hydrogen Peroxide, Temperature Effects, Uranium Isotopes, Meteorites, C2 Chondrites, Iodine/Xenon, Ages, Dating Techniques, Murray Meteorite, Isotopic Ratios, Procedure, Xenon/Xenon, Data, Experiments, Samples, Meteorite, Isochrons, Fractions, Temperatures, Composition, Colloids, Comparisons, Isotopes
Scientific paper
A neutron-irradiated bulk sample of the Murray (C-2) carbonaceous chondrite was etched with H2O2 and then divided into colloidal and non-colloidal fractions. The H2O2 treatment removed about 80% of the trapped Xe and greatly increased variations in the Xe-129/Xe-132 ratio measured in stepwise heating. The colloid showed very little excess Xe-129, but the anti-colloid gave a fairly good I-Xe correlation corresponding to formation 3.7 + or - 2.1 m.y. after Bjurbole. Variations in the trapped Xe component were also observed; most notably the 550 C anti-colloid fraction has large deficiencies relative to AVCC at the heavy isotopes.
Niemeyer Sid
Zaikowski Anthony
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