Tag Archives: periglacial terrain

HiRISE: Gullies and crevasses on a mesa

Posted on November 16, 2018 by rburnham

Gullies and crevasses on a mesa. Beautiful Mars series. [More at links]

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HiRISE: Crater in the aureole of Pavonis Mons

Posted on November 13, 2018 by rburnham

A crater in the aureole of Pavonis Mons. This is an unusual crater in the Pavonis Mons aureole, possibly a glacial deposit. It appears to have secondaries or textured ejecta (sign of freshness), but is mostly infilled. It also has … Continue reading →

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HiRISE: Curving pits and ridges

Posted on October 30, 2018 by rburnham

This terrain is unusual for the South Polar region of Mars, with a set of curved ridges of unknown origin. Small pits are present, often concentrated on the ridges, that may have resulted from sublimation of ice. [More at link]

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THEMIS: Soft-featured craters in Arcadia Planitia

Posted on October 19, 2018 by rburnham

THEMIS Image of the Day, October 19, 2018. This false-color VIS image shows some of the plains and craters located in Arcadia Planitia. The soft-looking features in the impact craters indicate ground ice at shallow depths below the surface. In … Continue reading →

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HiRISE: The walls in Milankovic Crater

Posted on October 11, 2018 by rburnham

The walls in Milankovic Crater. The objective of this observation is to determine the nature of depressions in the mantle on the wall of Milankovic Crater. It seems that the deeper depressions into the mantle have a straight edge along … Continue reading →

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HiRISE: Crazy terrain in Utopia

Posted on September 28, 2018 by rburnham

That crazy terrain. This is the floor of a crater in Utopia Planitia. Beautiful Mars series. [More at links]

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THEMIS: The many textures of Gordii Dorsum

Posted on July 24, 2018 by rburnham

THEMIS Image of the Day, July 24, 2018. This VIS image is located at the northern end of Gordii Dorsum, where the surface slopes down into southern Amazonis Planitia. Within this image are several different surfaces and textures. At the … Continue reading →

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HiRISE: Translucent ice

Posted on July 3, 2018 by rburnham

Translucent ice. Also note the polygonal ground, another feature of expanding and contracting subsurface ice. Beautiful Mars series. [More at links]

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THEMIS: Dunes and glacial deposits in Moreux Crater

Posted on May 30, 2018 by rburnham

THEMIS Image of the Day, May 30, 2018. Moreux Crater is located in the northern part of Terra Sabaea. The crater has a region of sand dunes on the crater floor, as well as features that are similar to glacial … Continue reading →

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HiRISE: Lace terrain near craters

Posted on March 29, 2018 by rburnham

Lace terrain near craters. Are these interesting channels due to seasonal sublimation and erosion? Beautiful Mars series.

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