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Dry formation of recent Martian slope features

May 28, 2021

Martian surface conditions are cold and dry, unfavorable for liquid water, yet steep slopes display young and currently active features suggestive of wet processes. These include recurring slope lineae and slope streaks, gully landforms, and small lobate features. Wet origins for these features would imply surprising amounts of liquid water at the surface. However, detailed observations of the morphology and activity of these features have demonstrated that dry processes, some of them unique to the Martian environment, can account for all of them. This reconciles the contradiction between physics and geomorphology and provides a self-consistent model of a Martian surface that is very active today despite having negligible volumes of liquid water.

    Publication Year 2021
    Title Dry formation of recent Martian slope features
    DOI 10.1016/B978-0-12-820245-6.00010-0
    Authors Colin M. Dundas
    Publication Type Book Chapter
    Publication Subtype Book Chapter
    Index ID 70226787
    Record Source USGS Publications Warehouse
    USGS Organization Astrogeology Science Center