Computer Science
Scientific paper
May 1975
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975hnl..rept.....o&link_type=abstract
Final Report, period ending 31 May 1975 Holifield National Lab., Oak Ridge, TN.
Computer Science
Lunar Rocks, Lunar Soil, Nuclear Chemistry, X Ray Spectroscopy, Concentration (Composition), Lunar Evolution, Radioactive Isotopes, Solar Activity, Solar Flares
Scientific paper
Primordial and cosmogenic radionuclide concentrations are determined nondestructively by gamma-ray spectrometry in soil and rock samples from the returned Apollo 17 sample collection from Taurus-Littrow and Descartes. Geochemical evidence in support of field geology speculation concerning layering of the subfloor basalt flows is demonstrated along with a possible correlation of magmatic fractionation of K/U as a function of depth. The pattern of radionuclide concentrations observed in these samples is distinct due to proton bombardment by the intense solar flares of August 4-9, 1972. Such radionuclide determinations are used in determining lunar sample orientation and characterizing solar flare activity.
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