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.
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Drainage features in Reull Vallis, as seen by THEMIS. Click on image to see relationship of Reull Vallis to other features.
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Reull Vallis with lineated floor deposits, as seen by THEMIS. Click on image to see relationship to other features.
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Layers in Reull Vallis, as seen by THEMIS.
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Niger Vallis with features typical of this latitude, as seen by HiRISE. Chevon pattern results from movement of ice-rich material. Click on image to see chevron pattern and mantle.
Read more about this topic: Vallis
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