Tag Archives: sand dunes

THEMIS: Swirling dunes in Charlier Crater

THEMIS Image of the Day, April 6, 2017. This VIS image shows part of the large sand sheet with surface dune forms on the floor of Charlier Crater in Terra Sirenum. The complex pattern in the dune crests may result … Continue reading

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THEMIS: Sand in Cimmeria, and a landslide

THEMIS Image of the Day, April 4, 2017. This VIS image shows a small dune field on the floor of an unnamed crater in Terra Cimmeria. Just south of the dune field is the crater’s central peak, with what appears … Continue reading

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THEMIS: Heap of dunes in Noachis Terra crater

THEMIS Image of the Day, March 31, 2017. This VIS image shows a portion of a sand sheet with surface dune forms on the floor of an unnamed crater in Noachis Terra. More THEMIS Images of the Day by geological … Continue reading

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THEMIS: Sand sheet in Cimmeria crater

THEMIS Image of the Day, March 30, 2017. Today’s VIS image shows a sand sheet with surface dune forms on the floor of an unnamed crater in Terra Cimmeria. More THEMIS Images of the Day by geological topic.  

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THEMIS: Rabe Crater dune field in VIS

THEMIS Image of the Day, March 29, 2017. This VIS image was collected simultaneously with yesterday’s IR image. It shows part of the dune field on the floor of Rabe Crater. Scientists compare VIS images with IR ones to help … Continue reading

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HiRISE: Plains south of Valles Marineris

This enhanced-color sample reveals the incredible diversity of landforms on some Martian plains that appear bland and uniform at larger scales. Here we see layers, small channels suggesting water flow, craters, and indurated sand dunes. [More at link]

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HiRISE: Unusual dunes on a crater floor

Unusual dunes on a crater floor. Beautiful Mars series.

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THEMIS: Rabe Crater dunes in infrared

THEMIS Image of the Day, March 28, 2017. This image of Rabe Crater and the region around it was collected using the IR (infrared) camera. The brighter the material, the warmer the surface is. Most dunes on Mars are dark … Continue reading

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HiRISE: The splitting of the dunes

The mound in the center of this image appears to have blocked the path of the dunes as they marched south (north is to the left in this image) across the scene. Many of these transverse dunes have slipfaces that … Continue reading

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THEMIS: Gullies on a big dune

THEMIS Image of the Day, March 27, 2017. Today’s VIS image shows part of the large dune form on the floor of Russell Crater. The big dune is scarred by gullies, with little dunes gathering at the gullies’ ends. More … Continue reading

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