A number of volatiles in Apollo 15 soils correlate with each other and with decreasing distance from the Apennine Front. These correlations can be understood in terms of a deposition of green glass and cogenetic volatiles on the flanks of the Front followed by addition of secondary magmatic volatiles including excess Ar-40. Mixing of these materials with mare-type regolith resulted in the observed volatile-element patterns. The absence of an increase in siderophilic element content with decreasing distance from the Front probably resulted from the failure of the steeply sloping front to develop a highlands-type mature regolith. Breccia 15015 has a siderophilic element signature typical of a mature Apollo 15 soil, which tends to rule out its transport to the site as part of an Autolycus or Aristillus ray.


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    Title :

    Volatile-element systematics and green glass in Apollo 15 lunar soils


    Contributors:

    Conference:

    Lunar Science Conference ; 1974 ; Houston, TX


    Publication date :

    1974-01-01


    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English




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