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DEBRIS FLOW FANS AN...
DEBRIS FLOW FANS AND PERMAFROST LANDFORMS ON SVALBARD (NORWAY): TERRESTRIAL ANALOGUES FOR MARTIAN MID-LATITUDE PERIGLACIAL LANDSCAPES.
- Article/chapterEnglish2010
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LIBRIS-ID:oai:gup.ub.gu.se/119417
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https://gup.ub.gu.se/publication/119417URI
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Subject category:ref swepub-contenttype
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Subject category:kon swepub-publicationtype
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Many young landforms on Mars that were probably formed by exogenic processes show a latitude- dependent geographic distribution. They include surface mantling, lobate debris aprons, lineated valley fill, and concentric crater fill, viscous flow features, gullies, and patterned ground. Collectively, these landforms are hypothesized to represent the surface records of Martian ice ages that were induced by astronomical forcing and associated climate changes. Previous studies often considered just one of the features in isolation (e.g., gullies), without taking into account the geomorphologic context. A more comprehensive investigation of the full assemblage of landforms (landscape analysis), however, has the potential to reduce the ambiguity in interpreting landforms (the problem of equifinality, e.g., in the case of pingos), and to reveal the evolution of the climatic environment in more detail. Here we present permafrost landforms of Svalbard (Norway) as useful terrestrial analogues for the suite of possible periglacial landforms that are typically found at mid-latitudes on Mars. We build on our previous investigations of gullies and fans, and include a number of classical periglacial landforms (patterned ground, rock glaciers, pingos) that all have close morphological analogues on Mars. Based on this comparison, we propose an evolutionary scenario which helps to understand the sequential formation of the Martian landforms into their present state.
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Reiss, Dennis
(author)
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Ulrich, Mathias
(author)
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Krohn, K.
(author)
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Preusker, F.
(author)
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Trauthan, F.
(author)
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Zanetti, Michael
(author)
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Hiesinger, Harald
(author)
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van Gasselt, Stephan
(author)
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Jaumann, R.
(author)
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Johansson, LarsGothenburg University,Göteborgs universitet,Institutionen för geovetenskaper,Department of Earth Sciences(Swepub:gu)xjohay
(author)
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Johnsson, Andreas,1977Gothenburg University,Göteborgs universitet,Institutionen för geovetenskaper,Department of Earth Sciences(Swepub:gu)xjandw
(author)
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Olvmo, Mats,1956Gothenburg University,Göteborgs universitet,Institutionen för geovetenskaper,Department of Earth Sciences(Swepub:gu)xolvma
(author)
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Göteborgs universitetInstitutionen för geovetenskaper
(creator_code:org_t)
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In:41st Lunar and Planetary Science Conference:1922
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Hauber, Ernst
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Reiss, Dennis
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Ulrich, Mathias
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Krohn, K.
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Preusker, F.
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Trauthan, F.
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Zanetti, Michael
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Hiesinger, Haral ...
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van Gasselt, Ste ...
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Jaumann, R.
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Johansson, Lars
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Johnsson, Andrea ...
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Olvmo, Mats, 195 ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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NATURAL SCIENCES
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and Earth and Relate ...
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and Geology
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NATURAL SCIENCES
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NATURAL SCIENCES
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University of Gothenburg