Dry formation of recent Martian slope features

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Abstract

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 type Book chapter
    Publication Subtype Book Chapter
    Title Dry formation of recent Martian slope features
    Chapter 10
    DOI 10.1016/B978-0-12-820245-6.00010-0
    Year Published 2021
    Language English
    Publisher Elsevier
    Contributing office(s) Astrogeology Science Center
    Description 26 p.
    Larger Work Type Book
    Larger Work Subtype Monograph
    Larger Work Title Mars Geological Enigmas From the Late Noachian Epoch to the Present Day
    First page 263
    Last page 288
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