Tag Archives: dunes

THEMIS: Cascading dunes in Rabe Crater

Posted on December 14, 2017 by rburnham

THEMIS Image of the Day, December 14, 2017. This VIS image of Rabe Crater is dominated by the extensive dunes that cover the crater floor. To the top of the image part of the pit is visible, as well as … Continue reading →

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THEMIS: Sand sea in Rabe Crater

Posted on December 13, 2017 by rburnham

THEMIS Image of the Day, December 13, 2017. Dunes cover the majority of this image of Rabe Crater. As the dunes are created by wind action the forms of the dunes record the wind direction. Dunes will have a long … Continue reading →

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THEMIS: Edge of the pit in Rabe Crater

Posted on December 13, 2017 by rburnham

THEMIS Image of the Day, December 12, 2017. In this VIS image of the floor of Rabe Crater the step down into the pit is visible in the sinuous ridges on the left side of the image. The appearance of … Continue reading →

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THEMIS: Dunes swirl in Rabe Crater

Posted on December 13, 2017 by rburnham

THEMIS Image of the Day, December 11, 2017. Rabe Crater is 108 km (67 miles) across. Craters of similar size often have flat floors. Rabe Crater has some areas of flat floor, but also has a large complex pit occupying … Continue reading →

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HiRISE: Defrosting dunes

Posted on December 7, 2017 by rburnham

Defrosting dunes. They’re melting! They’re melting! Beautiful Mars series.

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THEMIS: Dunes swirl across landslide rubble

Posted on December 7, 2017 by rburnham

THEMIS Image of the Day, December 7, 2017. This VIS image is located along the northern cliff face of Melas Chasma. The linear features are large landslide surfaces. A region of sand dunes is located along the change in elevation … Continue reading →

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THEMIS: Dunes gather on the Melas Chasma floor

Posted on December 4, 2017 by rburnham

THEMIS Image of the Day, December 4, 2017. Today’s image contains a large region of dunes between the canyon cliff face and the large ridge of material at the mid-elevation of the canyon. Fine materials have been concentrated into the … Continue reading →

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THEMIS: On the floor of a canyon, within a much bigger canyon

Posted on November 30, 2017 by rburnham

THEMIS Image of the Day, November 30, 2017. Today’s image of the southern section of the canyon shows a large region of sand dunes. The presence of dunes indicates wind action as the most recent geologic process modifying the canyon. … Continue reading →

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THEMIS: Layered buttes & dunes in Melas Chasma

Posted on November 27, 2017 by rburnham

THEMIS Image of the Day, November 27, 2017. Melas Chasma is part of the largest canyon system on Mars, Valles Marineris. At only 563 km long (349 miles) it is not the longest canyon, but it is the widest. Located … Continue reading →

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THEMIS: Glacial terrain in Moreux Crater

Posted on November 17, 2017 by rburnham

THEMIS Image of the Day, November 17, 2017. This image of Moreux Crater shows part of the central peak at the top of the frame, deposits of material from the crater rim at the bottom of the frame and sand … Continue reading →

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