BIROn - Birkbeck Institutional Research Online

    Possible open-system (hydraulic) pingos in and around the Argyre impact region of Mars

    Soare, R.J. and Conway, S.J. and Dohm, J.M. and El-Maarry, Mohamed Ramy (2014) Possible open-system (hydraulic) pingos in and around the Argyre impact region of Mars. Earth and Planetary Science Letters 398 , pp. 25-36. ISSN 0012-821X.

    Full text not available from this repository.

    Abstract

    We report the observation of possible (hydraulic) open-system pingos (OSPs) at the mid latitudes (S) in and around the Argyre impact-basin. OSPs are perennial (water)–ice cored mounds; they originate and evolve in periglacial and pro-glacial landscapes on Earth where intra- or sub-permafrost water under hydraulic/artesian pressure uplifts localised sections of surface or near-surface permafrost that then freezes in-situ. We invoke three lines of evidence in support of our analogue-based interpretation: (1) similarities of shape, size and summit traits between terrestrial OSPs and the Martian mounds; (2) clustered distribution and the slope-side location of the mounds, consistent with terrestrial permafrost-environments where OSPs are found; and, (3) spatially-associated landforms putatively indicative of periglacial and glacial processes on Mars that characterise OSP landscapes on Earth. This article presents five OSP candidate-locations and nests these mound locations within a new geological map of the Argyre impact-basin and margins. It also presents three periglacial hypotheses about the possible origin of the water required to develop the mounds. Alternative (non-periglacial) formation-hypotheses also are considered; however, we show that their robustness is not equal to that of the periglacial ones.

    Metadata

    Item Type: Article
    Keyword(s) / Subject(s): Mars, climate, atmosphere, surface
    School: Birkbeck Faculties and Schools > Faculty of Science > School of Natural Sciences
    Depositing User: Administrator
    Date Deposited: 06 Dec 2018 15:23
    Last Modified: 02 Aug 2023 17:46
    URI: https://eprints.bbk.ac.uk/id/eprint/25377

    Statistics

    Activity Overview
    6 month trend
    0Downloads
    6 month trend
    123Hits

    Additional statistics are available via IRStats2.

    Archive Staff Only (login required)

    Edit/View Item Edit/View Item