Plagioclase feldspars were separated from lunar soil samples and their compositions were determined by electron-microprobe analysis followed by etching and track counting in an effort to find effects of early solar activity. The feldspars were assigned on this basis to three major lithologies: mare basalts, anorthositic rocks, and KREEP rock. The results are in sharp contrast to Poupeau et al.'s (1973) observations on track densities in plagioclase crystals in the Luna 16 soil: no evidence is found for an early active sun, although the evidence does not preclude this possibility, either.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen


    Exportieren, teilen und zitieren



    Titel :

    Early active sun - Radiation history of distinct components in fines


    Beteiligte:
    Crozaz, G. (Autor:in) / Taylor, G. J. (Autor:in) / Walker, R. M. (Autor:in) / Seitz, M. G. (Autor:in)

    Kongress:

    Lunar Science Conference ; 1974 ; Houston, TX


    Erscheinungsdatum :

    1974-01-01


    Medientyp :

    Sonstige


    Format :

    Keine Angabe


    Sprache :

    Englisch


    Schlagwörter :


    Risikofaktor: Cat Fines

    Online Contents | 2014



    Composition of lunar fines

    Haramura, H. / Kushiro, I. / Nakamura, Y. | NTRS | 1970



    Total emittance of lunar fines.

    Birkebak, R. C. / Abdulkadir, A. | NTRS | 1972