Eskers associated with buried glaciers in Mars' mid latitudes: recent advances and future directions

Butcher, Frances E.G.Department of Geography, University of Sheffield, Sheffield, UK (författare)

Validerad;2023;Nivå 2;2023-11-07 (joosat);Funder: French Space Agency CNES; STFC (ST/V50693X/1); NASA (80NSSC21K0908); UK Space Agency (ST/R001405/1, ST/T002913/1, ST/V005332/1, ST/W002744/1, ST/W002949/1)Full text license: CC BY 4.0
Until recently, the influence of basal liquid water on the evolution of buried glaciers in Mars' mid latitudes was assumed to be negligible because the latter stages of Mars' Amazonian period (3 Ga to present) have long been thought to have been similarly cold and dry to today. Recent identifications of several landforms interpreted as eskers associated with these young (100s Ma) glaciers calls this assumption into doubt. They indicate basal melting (at least locally and transiently) of their parent glaciers. Although rare, they demonstrate a more complex mid-to-late Amazonian environment than was previously understood. Here, we discuss several open questions posed by the existence of glacier-linked eskers on Mars, including on their global-scale abundance and distribution, the drivers and dynamics of melting and drainage, and the fate of meltwater upon reaching the ice margin. Such questions provide rich opportunities for collaboration between the Mars and Earth cryosphere research communities.

Arnold, Neil S.Scott Polar Research Institute, University of Cambridge, Cambridge, UK (författare)
Balme, Matthew R.School of Physical Sciences, The Open University, Milton Keynes, UK (författare)
Conway, Susan J.CNRS UMR 6112, Laboratoire de Planétologie et Géosciences, Nantes Université, Nantes, France (författare)
Clark, Christopher D.Department of Geography, University of Sheffield, Sheffield, UK (författare)
Gallagher, ColmanUCD School of Geography, University College Dublin, Dublin, Ireland; UCD Earth Institute, University College Dublin, Dublin, Ireland (författare)
Hagermann, AxelLuleå tekniska universitet,Rymdteknik(Swepub:ltu)axehag (författare)
Lewis, Stephen R.School of Physical Sciences, The Open University, Milton Keynes, UK (författare)
Rutledge, Alicia M.Department of Astronomy and Planetary Science, Northern Arizona University, Flagstaff, USA (författare)
Storrar, Robert D.Department of the Natural and Built Environment, Sheffield Hallam University, Sheffield, UK (författare)
Woodley, Savana Z.School of Physical Sciences, The Open University, Milton Keynes, UK (författare)
Department of Geography, University of Sheffield, Sheffield, UKScott Polar Research Institute, University of Cambridge, Cambridge, UK (creator_code:org_t)

Ingår i:Annals of Glaciology: Cambridge University Press63:87-89, s. 33-380260-30551727-5644

Av författaren/redakt...: Butcher, Frances ...; Arnold, Neil S.; Balme, Matthew R ...; Conway, Susan J.; Clark, Christoph ...; Gallagher, Colma ...; visa fler...; Hagermann, Axel; Lewis, Stephen R ...; Rutledge, Alicia ...; Storrar, Robert ...; Woodley, Savana ...; visa färre...

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