Computer Science
Scientific paper
Sep 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986gecoa..50.1997w&link_type=abstract
Geochimica et Cosmochimica Acta (ISSN 0016-7037), vol. 50, Sept. 1986, p. 1997-2017. SNSF-supported research.
Computer Science
45
Energetic Particles, Lunar Soil, Pyroxenes, Rare Gases, Solar Corpuscular Radiation, Cosmology, Degassing, Etching, Minerals, Solar Flares, Solar Wind
Scientific paper
He, Ne, and Ar abundances and isotopic ratios in plagioclase and pyroxene separates from lunar soils were determined using a closed system stepwise etching technique. This method of noble gas release allows one to separate solar wind (SW) noble gases from those implanted as solar energetic particles (SEP). The major part of SEP-Ne possibly originates from solar "suprathermal ions" with energies <0.1 MeV/amu. The isotopic composition of Ne in these lower energy SEP is, however, probably identical to that of real flare Ne. The suggestion that SEP-Ne might have the same isotopic composition as planetary Ne and thus possibly represent an unfractionated sample of solar Ne is not tenable.
Baur Holger
Signer Peter
Wieler Rainer
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