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Butcher, Frances E. G.; Arnold, Neil S.; Balme, Matthew; Conway, Susan J.; Clark, Christopher D.; Gallagher, Colman; Hagermann, Axel; Lewis, Stephen R.; Rutledge, Alicia M.; Storrar, Robert D. and Woodley, Savana Z.
(2023).
DOI: https://doi.org/10.1017/aog.2023.7
Abstract
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.
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About
- Item ORO ID
- 88145
- Item Type
- Journal Item
- ISSN
- 0260-3055
- Project Funding Details
-
Funded Project Name Project ID Funding Body The Martian Chlorine Cycle: Linking Orbiter And Rover Observations ST/W002949/1 UKSA UK Space Agency Characterizing the Martian water cycle by assimilating ExoMars 2016 Trace Gas Orbiter data ST/R001405/1 UKSA UK Space Agency Retrievals of martian aerosols and ozone from ExoMars NOMAD data ST/V005332/1 UKSA UK Space Agency Martian aeolian processes and landforms at the ExoMars Rover site: from orbit to surface ST/T002913/1 UKSA UK Space Agency - Keywords
- Debris-covered glaciers; extraterrestrial glaciology; geomorphology
- Academic Unit or School
-
Faculty of Science, Technology, Engineering and Mathematics (STEM) > Physical Sciences
Faculty of Science, Technology, Engineering and Mathematics (STEM) - Copyright Holders
- © 2023 The Authors
- Depositing User
- Stephen Lewis