Isotopic lead data from bulk samples of Apollo 17 soils were analyzed, and they define a chord in a concordia diagram, showing the presence of a component or components containing excess radiogenic lead with Pb-207/Pb-206 equal to about 1.32. The chord is distinctly different from the cataclysm chord, for which Pb-207/Pb-206 is approximately 1.45. Nitric acid analysis of plagioclase indicates lead ages of around 4.35 AE, in agreement with previous findings. Agglutinates from soil 76501,34 show loss of approximately 15% of lead.


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    Titel :

    Lead isotope systematics of some Apollo 17 soils and some separated components from 76501


    Beteiligte:
    Church, S. E. (Autor:in) / Tilton, G. R. (Autor:in)

    Kongress:

    Lunar Science Conference ; 1974 ; Houston, TX


    Erscheinungsdatum :

    01.01.1974


    Medientyp :

    Sonstige


    Format :

    Keine Angabe


    Sprache :

    Englisch




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