Ancient dry river beds detected on Mars by the Viking spacecraft suggest that the early Martian atmosphere may have been much more massive than at present. Degassing of a late-accreting, volatile-rich veneer may account for the primitive atmosphere of both Mars and earth. The primitive earth atmosphere could have produced a greenhouse effect sufficient to maintain temperatures above 273 K without NH3 and with low solar luminosity. The Venutian veneer, according to preliminary Pioneer results, was probably richer in noble gases relative to carbon and nitrogen than were the Martian and earth veneers. The highly evolved atmosphere of Titan, the large satellite of Saturn, is also discussed.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen


    Exportieren, teilen und zitieren



    Titel :

    The origins and early histories of planetary atmospheres


    Beteiligte:
    Owen, T. (Autor:in)

    Kongress:

    In: Evolution of planetary atmospheres and climatology of the earth; International Conference ; 1978 ; Nice, France


    Erscheinungsdatum :

    01.01.1979


    Medientyp :

    Sonstige


    Format :

    Keine Angabe


    Sprache :

    Englisch




    Planetary atmospheres

    Fellows, R. F. / Hipsher, H. / Horowitz, R. | NTRS | 1967


    Planetary atmospheres

    Shea, M.A. | Online Contents | 2005


    Planetary atmospheres

    Levine, Joel S. | NTRS | 1987


    Planetary atmospheres

    Gierasch, P. J. | NTRS | 1975


    Planetary atmospheres

    Colegrove, F. D. / Hanson, W. B. / Hodges, R. R., Jr. et al. | NTRS | 1968