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    Nuclear chemistry of returned lunar samples: Nuclide analysis by gamma-ray spectrometry (1975)
    In:  CASI
    Details
    Publication Date: 2019-07-20
    Description: 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.
    Keywords: LUNAR AND PLANETARY EXPLORATION
    Type: NASA-CR-141913
    Format: application/pdf
    Location Call Number Expected Availability
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