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Lineated Floor Deposits
On the floors of some channels are features called lineated floor deposits. They are ridged and grooved materials that seem to deflect around obstacles. They are believed to be ice-rich. Some glaciers on the Earth show such features. Lineated floor deposits may be related to lobate debris aprons, which have been proven to contain large amounts of ice. Reull Vallis, as pictured below, displays these deposits.
Drainage features in Reull Vallis, as seen by THEMIS. Click on image to see relationship of Reull Vallis to other features.
Reull Vallis lineated deposits.jpg
Reull Vallis with lineated floor deposits, as seen by THEMIS. Click on image to see relationship to other features.
Reull Vallisl layers.JPG
Layers in Reull Vallis, as seen by THEMIS.
Close-up of fretted terrain near Reull Vallis, as seen by HiRISE. This area would be a challenge to walk across.
Layers in Monument Valley, Utah. These are accepted as being formed, at least in part, by water deposition. Since Mars contains similar layers, water remains as a major cause of layering on Mars.
- Koebler, J. (2013-01-18). "European Space Agency Discovers 'Striking' Ancient River on Mars". U.S. News & World Report. Retrieved 2013-11-16.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
- "Reull Vallis:a river ran through it". ESA space science web site. European Space Agency. 2013-01-17. Retrieved 2013-11-16. External link in
- Google Mars map centred on Reull Vallis.
- Geologic Map of Reull Vallis Region of Mars, by Astrogeology Science Center, U.S. Geological Survey
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