The lunar surface was mapped with respect to Mg, Al and Si as Al/Si and Mg/Si ratios along the projected ground tracks swept out by the orbiting Apollo 16 spacecraft. The results confirm the observations made during the Apollo 15 flight and provide data for a number of features not covered before. The data are consistent with the idea that the moon has a widespread differentiated crust (the highlands). The Al/Si and Mg/Si chemical ratios correspond to those for anorthositic gabbro through gabbroic anorthosites or feldspathic basalts. The X-ray results suggest the occurrence of this premare crust, or material similar to it, at the Descartes landing site. (Author)


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    Titel :

    APOLLO 16 Geochemical X-Ray Fluorescene Experiment Preliminary Report


    Beteiligte:
    I. Adler (Autor:in) / J. Trombka (Autor:in) / J. Gerard (Autor:in) / P. Lowman (Autor:in) / R. Schmadebeck (Autor:in)

    Erscheinungsdatum :

    1972


    Format / Umfang :

    23 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch




    Apollo 16 geochemical X-ray fluorescene experiment: Preliminary report

    Adler, I. / Trombka, J. / Gerard, J. et al. | NTRS | 1972


    Apollo 16 geochemical X-ray fluorescence experiment: Preliminary report

    Adler, I. / Trombka, J. / Gerard, J. et al. | NTRS | 1972


    Apollo 16 geochemical X-ray fluorescence experiment - Preliminary report.

    Adler, I. / Trombka, J. / Gerard, J. et al. | NTRS | 1972


    Apollo 15 geochemical X-ray fluorescence experiment - Preliminary report.

    Adler, I. / Trombka, J. / Gerard, J. et al. | NTRS | 1972


    APOLLO 16 Geochemical X-Ray Fluorescence Experiment Preliminary Report

    I. Adler / J. Trombka / J. Gerard et al. | NTIS | 1972