Many lakes on early Mars were hosted in degraded impact craters. Past work has suggested that landscape erosion and crater degradation were very active prior to the valley network (VN)-forming era on Mars. Rim relief reduction during degradation may have primed craters for subsequent inlet incision during the VN-forming era. However, not all old, rimless craters on Mars are breached, so extensive rim degradation could not have been the only control on VN inlet formation. In this study, we ask: Why were some, but not all, degraded craters breached during the VN-forming era? Here, we focus on testing whether there are any measurable distinctions between VN-breached and non-breached degraded Noachian craters.


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    Title :

    Exploring Controls on the Fluvial Breaching of Degraded Impact Craters


    Contributors:
    E. R. Bamber (author) / T. A. Goudge (author) / C. I. Fassett (author) / G. R. Osinski (author) / G. S. D. Quay (author)

    Publication date :

    2021


    Size :

    2 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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