phenomena, such as debris flows formed by melting of near-surface ground ice, were pos-sible. In practice, such debris flows may have only occurred in some favored areas, because a relatively large amount of water is required in combination with the presence of cohe-sionless material (in East Greenl...
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| Format: | Text |
| Language: | English |
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| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.646.8877 http://stephenschneider.stanford.edu/Publications/PDF_Papers/Forest.pdf |
| Summary: | phenomena, such as debris flows formed by melting of near-surface ground ice, were pos-sible. In practice, such debris flows may have only occurred in some favored areas, because a relatively large amount of water is required in combination with the presence of cohe-sionless material (in East Greenland, debris flows are not generalized but only occur where large amount of debris is produced). Nevertheless, the possible presence of limited amounts of liquid water in the near surface at mid- and high latitudes predicted by our mod-el have interesting consequences. It could induce freeze-thaw cycle erosion on Mars, and explain the polygons and patterned ground observed on MOC images (8) around 60 ° latitude, which look similar to terrestrial polygons related to the seasonal thawing of ground. |
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