Tag Archives: glaciers

HiRISE: Crevassed glacier-like forms

Posted on September 18, 2017 by rburnham

Crevassed glacier-like forms. Beautiful Mars series.

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HiRISE: Icy flow in a crater

Posted on March 8, 2017 by rburnham

The material on the floor of this crater appears to have flowed like ice, and contains pits that might result from sublimation of subsurface ice. The surface is entirely dust-covered today. There probably was ice here sometime in the past, … Continue reading →

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HRSC: Buried glaciers on Mars

Posted on October 13, 2016 by rburnham

This jumble of eroded blocks lies along the distinctive boundary between the Red Planet’s southern highlands and the northern lowlands, with remnants of ancient glaciers flowing around them. This boundary is one of the oldest and most prominent features on … Continue reading →

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HiRISE: Surface patterns of glacier-like landforms

Posted on September 22, 2016 by rburnham

The rotational axis of Mars is currently tilted by about 25 degrees, very similar to that of the Earth (at 23.4 degrees). However, while Earth’s axial tilt (also known as “obliquity”) tends to change very slightly over time (almost 3 … Continue reading →

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THEMIS: Ice-choked Mamers Valles

Posted on August 23, 2016 by rburnham

THEMIS Image of the Day, August 23, 2016. This VIS image shows a small portion of Mamers Valles. Mamers Valles is a complex channel system that drained the highlands of Arabia Terra into the lowlands of Acidalia Planitia. More THEMIS … Continue reading →

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HiRISE: Glorious glacier

Posted on July 18, 2016 by rburnham

This image has low-sun lighting that accentuates the many transverse ridges on this slope, extending from Euripus Mons (mountains). These flow-like structures were previously called “lobate debris aprons,” but the Shallow Radar (SHARAD) instrument on MRO has shown that they … Continue reading →

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THEMIS: Ice-choked channels at highlands’ edge

Posted on July 14, 2016 by rburnham

THEMIS Image of the Day, July 14, 2016. This VIS image is located on the eastern margin of Terra Sabaea. The boundary region between the highlands of Terra Sabaea and the lower elevations of Utopia Planitia is a complex of … Continue reading →

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Debris-covered glaciers on Earth and Mars

Posted on June 30, 2016 by rburnham

Planetary Geomorphology Image of the Month, June 30, 2016: David P. Mayer (University of Chicago).  Debris-covered glaciers are glaciers whose ablation zones are at least partially covered by supraglacial debris. On Earth, debris-covered glaciers are found in all major mountain … Continue reading →

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THEMIS: Mamers Valles

Posted on June 3, 2016 by rburnham

THEMIS Image of the Day, June 3, 2016. This VIS image shows a small portion of Mamers Valles. Mamers Valles is a large complex set of channels in northern Arabia Terra that flow into Acidalia Planitia. More THEMIS Images of … Continue reading →

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THEMIS: Arabia Terra channel

Posted on May 20, 2016 by rburnham

THEMIS Image of the Day, May 20, 2016. This VIS image shows a portion of an unnamed channel located on the northern margin of Arabia Terra. Numerous channels are found in this region, draining from the higher elevations of Arabia … Continue reading →

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