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The Dorsa Argentea, Mars: New Comparisons to a Large Sample of Terrestrial Eskers and Quantitative Tests for Esker-Like Topographic Relationships

Butcher, F. E.G.; Conway, S. J. and Arnold, N. S. (2016). The Dorsa Argentea, Mars: New Comparisons to a Large Sample of Terrestrial Eskers and Quantitative Tests for Esker-Like Topographic Relationships. In: Sixth International Conference on Mars Polar Science and Exploration, 5-9 Sep 2016, University of Iceland, Reykjavik, Iceland.

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Abstract

The Dorsa Argentea (DA) are an assemblage of ridges in Mars’ southern high latitudes (70°-80°S, 56°W-6°E). Glacial eskers and inverted channels remain as active hypotheses for their formation. The esker interpretation is widely used as a basis for reconstructions of meltwater production beneath a putative former ice sheet in the region of the DA during Mars’ Hesperian period, despite a lack of rigorous quantitative testing of the esker hypothesis. We undertake the first large-scale quantitative analysis of the plan view geometries of the DA in a comparison to >5900 terrestrial esker systems in Canada. Statistical tests for esker-like topographic relationships are also completed. Our results support the esker hypothesis and highlight that future studies of the DA and its parent ice sheet should more closely consider the ongoing debate over the spatio-temporal nature of terrestrial esker formation, and its implications for reconstructions of ice sheet meltwater production.

Item Type: Conference or Workshop Item
Copyright Holders: 2016 The Authors
Project Funding Details:
Funded Project NameProject IDFunding Body
The Geomorphology of Glacial Landscapes on Mars - PhD StudentshipST/N50421X/1STFC (Science and Technology Facilities Council)
Leverhulme Trust GrantRPG-397The Leverhulme Trust
Keywords: Mars; polar geology; martian surface; geological processes; geomorphology; planetary science; geology; glaciers; remote sensing
Academic Unit/School: Faculty of Science, Technology, Engineering and Mathematics (STEM) > Physical Sciences
Faculty of Science, Technology, Engineering and Mathematics (STEM)
Related URLs:
Item ID: 47704
Depositing User: Frances Butcher
Date Deposited: 31 Oct 2016 10:52
Last Modified: 25 Jun 2019 10:28
URI: http://oro.open.ac.uk/id/eprint/47704
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