File:Glacial Landscape Near Mamers Valles.jpg
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DescriptionGlacial Landscape Near Mamers Valles.jpg |
English: Stunning Landscape Near Mamers Valles on Mars.
HiRISE Photo ID: ESP_028313_2220 Science Theme: Geologic Contacts/Stratigraphy. This region of Mars has been long studied for its evidence of glacial-like flow features. The landscape is dominated by flat top mesas and flat valley floors. But a closer look shows evidence that soil material is flowing ever so gradually from the edges of the mesas out into the valleys. Such flow can result from excessively ice-rich deposits analogous to glaciers. "Streamlines" (curved ridges) mark the flow direction, while "flow fronts" mark where material has reached its furthest extent or where material has collided with an obstacle or otherwise bunched up. The close up view from HiRISE reveals even stranger textures on the valley floor. Scarps and hills appear twisted like taffy, probably the result of the slow movement of the subsurface ice. Other areas that appear flat and smooth at lower resolution are expanses of extremely regular small pits and mounds at HiRISE resolution. One suggestion has been that these small-scale textures are the result of sublimation (evaporation) of subsurface ice combined with the taffy-like shifts in the ground surface. |
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Source | http://hirise.lpl.arizona.edu/ESP_028313_2220 | ||||||
Author | NASA HiRISE camera, Mars Reconnaissance Orbiter. | ||||||
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current | 03:44, 29 January 2014 | 1,280 × 720 (945 KB) | Tillman (talk | contribs) | {{Information |Description ={{en|1= Stunning Landscape Near Mamers Valles ESP_028313_2220 Science Theme: Geologic Contacts/Stratigraphy FrançaisEspañolPortuguêsItalianoNederlandsRussianArabic AUDIO Listen to the text WALLPAPER 800 1024... |
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Unique ID of original document | xmp.did:07801174072068118083B6991FBED985 |
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Software used | Adobe Photoshop CS6 (Macintosh) |