Tag Archives: dunes

THEMIS: Gullies in Noachis Terra

Posted on December 10, 2018 by rburnham

THEMIS Image of the Day, December 10, 2018. Numerous channels, also called gullies, dissect the rim of this unnamed crater in Noachis Terra. (Note that the lighting in this image comes from the lower right.) At upper right lies a … Continue reading →

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THEMIS: Halley Crater dunes

Posted on December 6, 2018 by rburnham

THEMIS Image of the Day, December 6, 2018. Halley Crater is located on the western side of Argyre Planitia. Sand dunes cover part of the crater floor. The dunes’ dark tone indicates they are free from dust. This in turn … Continue reading →

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HiRISE: Dunes in the shapes of Ts and Vs

Posted on December 3, 2018 by rburnham

Dunes in the shapes of Ts and Vs. They also look like funnel shapes. Beautiful Mars series. [More at links]

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THEMIS: Dunes in Kaiser Crater

Posted on November 23, 2018 by rburnham

THEMIS Image of the Day, November 23, 2018. This VIS image shows part of the floor of Kaiser Crater, including several sand dunes. Kaiser Crater is located in Noachis Terra. The dunes’ dark tone indicates they are free of dust, … Continue reading →

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New terrestrial analog for martian megaripple dunes

Posted on November 20, 2018 by rburnham

A new paper [published in Icarus] by M. Foroutan (U. Waterloo, Canada) and co-authors describes the first terrestrial dark sand dunes similar to a type of mysterious dune found on Mars.  These megaripples, found surrounding the remote volcanic caldera Wau-an-Namus, … Continue reading →

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THEMIS: Big dunes and little ones in Russell Crater

Posted on November 14, 2018 by rburnham

THEMIS Image of the Day, November 14, 2018. This VIS image shows part of the floor of Russell Crater, including sand dunes of mulitple sizes. Russell Crater is located in Noachis Terra. Do small dunes merge to become big ones? … Continue reading →

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HiRISE: Dune field in a crater near Iaxartes Tholus

Posted on November 13, 2018 by rburnham

A dune field in a crater near Iaxartes Tholus. Beautiful Mars series. [More at links]

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HiRISE: Dunes dubbed Furya

Posted on November 6, 2018 by rburnham

Dunes dubbed Furya. Of course, these were dubbed by the suggester of the image, who clearly is a fan of “The Chronicles of Riddick.” Beautiful Mars series. [More at links]

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HiRISE: North flank of Ceti Mensa

Posted on November 2, 2018 by rburnham

The north flank of Ceti Mensa. There is some possible soft-sediment deformation in this area. The region has attracted attention because its deep red color in images collected by the Viking Orbiter mission during the 1970s. Beautiful Mars series. [More … Continue reading →

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HiRISE: Colorful impact

Posted on October 17, 2018 by rburnham

Some regions of Mars are not very colorful, but we can be surprised by local features. This image of an impact crater in the south Syrtis Major region was acquired as a “ride-along” with a CRISM observation, which targeted this … Continue reading →

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