Computer Science
Scientific paper
Jun 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989gecoa..53.1461p&link_type=abstract
Geochimica et Cosmochimica Acta (ISSN 0016-7037), vol. 53, June 1989, p. 1461-1467.
Computer Science
3
Chondrites, Meteoritic Composition, Neon Isotopes, Solar Activity, Mass Spectroscopy, Neutron Activation Analysis, Pyroxenes, Solar Flares, Meteorites, Neon, Isotopes, Fayetteville, Kapoeta, Samples, Meteorite, Laboratory Studies, Mass Spectrometry, Cosmic Rays, Irradiation, Origin, Solar Flares, Regolith, Parent Bodies, Procedure, Chemistry, Source, Mass Spectrometry, Flux
Scientific paper
Under the assumption that the solar-flare bombardment of the irradiated grains of gas-rich meteorites occurred about 4.5 b.y. ago on the parent body regoliths at 3 A.U., an estimate of the solar cosmic ray-produced Ne-21 is made by studying etched pyroxene minera separates from both light and dark portions of the gas-rich meteorites Fayetteville and Kapoeta. Excesses of solar cosmic ray Ne-21 were observed in dark portions of these meteorites, after accounting for their galactic cosmic ray Ne-21 production and solar flare Ne-21. In order to produce the estimated solar cosmic ray Ne-21 in the present samples, highly enhanced solar cosmic ray proton fluxes from the ancient sun are required.
Padia J. T.
Rao Mallikharjuna N.
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