Other
Scientific paper
Sep 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983georl..10..801b&link_type=abstract
Geophysical Research Letters (ISSN 0094-8276), vol. 10, Sept. 1983, p. 801-803.
Other
23
Gas Composition, Lunar Rocks, Meteoritic Composition, Rare Gases, Abundance, Lunar Soil, Regolith, Meteorites, Antarctic Meteorites, Allan Hills Meteorites, Alha81005, Moon, Origin, Description, Physical Properties, Characteristics, Data, Source, Samples, Meteorite, Rare Gases, Isotopes, Solar Wind, Matrix, Abundance, Concentrations, Comparisons, Regolith, Cosmogenic Elements, Cosmic Rays, Exposure Ages, Procedure, Implantation, Models
Scientific paper
The isotopic abundances of the noble gases are reported for Antarctic meteorite ALHA81005. It contains solar wind-implanted gases whose absolute and relative concentrations are quite similar to lunar regolith samples but not to other meteorites. ALHA81005 also contains a large excess 40Ar component which is identical to the component in lunar fines implanted from the lunar atmosphere. Large concentrations of cosmogenic 21Ne, 82Kr and 126Xe in ALHA81005 indicate a total cosmic ray exposure age of ≥2×108 years. The noble gas data alone are strong evidence for a lunar origin of this meteorite.
Bogard Donald D.
Johnson Peter
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