Definition
Tongue-shaped landforms on Mars inferred to be formed by slow downslope flow of saturated unfrozen materials.
Descriptions of Subtypes
- (1)
Solifluction-like lobes or small-scale lobes: well-defined lobe or tongue-shaped landform tens to hundreds of meters wide (Johnsson et al. 2012)
- (1.1)
Non-sorted lobes or smooth-textured lobes. Small-scale lobes that show no evidence of a clast-rich lobe front (Johnsson et al. 2012; Fig. 1)
- (1.2)
Sorted lobes or clast-banked lobes. Small-scale lobes that have a distinct front with clasts and relatively few clasts on the tread surface, similar to stone-banked lobes on Earth (Gallagher et al. 2011; Johnsson et al. 2012; Fig. 2)
- (1.1)
Non-sorted small-scale lobes on interior walls of a high-latitude crater, Mars (Johnsson et al. 2012). HiRISE ESP_017626_2825 at 77.4°N 7.6°E (NASA/JPL/UA)
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References
Gallagher C, Balme MR, Conway SJ, Grindrod PM (2011) Sorted clastic stripes, lobes and associated gullies in high-latitude craters on Mars: landforms indicative of very recent, polycyclic ground-ice thaw and liquid flows. Icarus 211(1):458–471. doi:10.1016/j.icarus.2010.09.010
Hauber E et al (2011a) Periglacial landscapes on Svalbard: terrestrial analogs for cold-climate landforms on Mars. In: Garry WB, Bleacher JE (eds) Analogs for planetary exploration, Geological Society of America, special paper 483. Geological Society of America, Boulder, pp 177–201
Hauber E et al (2011b) Landscape evolution in Martian mid-latitude regions: insights from analogous periglacial landforms in Svalbard. In: Balme MR, Bargery AS, Gallagher CJ, Gupta S (eds) Martian geomorphology, Geological society, London, special publications 356. Geological Society, London, pp 111–131
Johnsson A, Reiss D, Hauber E, Zanetti M, Hiesinger H, Johansson L, Olmvo M (2012) Periglacial mass-wasting landforms on Mars suggestive of transient liquid water in the recent past: insights from solifluction lobes on Svalbard. Icarus 218:489–505. doi:10.1016/j.icarus.2011.12.021
Kreslavsky M, Head JW (2014) Active layer on Mars: when and where? 45th Lunar Planet Sci Conf, abstract #2715, Houston
Mangold N (2005) High latitude patterned grounds on Mars: classification, distribution and climatic control. Icarus 174:336–359
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Hargitai, H., Johnsson, A. (2015). Solifluction-Like Lobes (Mars). In: Hargitai, H., Kereszturi, Á. (eds) Encyclopedia of Planetary Landforms. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-3134-3_644
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DOI: https://doi.org/10.1007/978-1-4614-3134-3_644
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