Tag Archives: pit craters

HiRISE: Pit crater near Elysium Mons

This image was taken of an area on the lower southeastern flank of the volcano Elysium Mons. In the center is a small, dark pristine-appearing pit approximately 130 meters in diameter, which is clearly visible among the numerous small impact … Continue reading

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THEMIS: Central pit crater

THEMIS Image of the Day, November 13, 2015. Crater floors can have a range of features, from flat to a central peak or a central pit. This unnamed crater in Terra Sabaea has a central pit. The different floor features … Continue reading

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HiRISE: Pit near Elysium Mons

Pit near Elysium Mons. Beautiful Mars series.

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HiRISE: Pits in Hale Crater ejecta

The pits visible here aren’t impact craters. The material they’re embedded into is ejecta (stuff thrown out of an impact crater when it forms) from a large crater called Hale which is not seen in this image. Substances called “volatiles” … Continue reading

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THEMIS: Cyane Fossae

THEMIS Image of the Day, July 31, 2014. The linear feature in this image is part of Cyane Fossae. The circular collapse features are bounded by linear faults. More THEMIS Images of the Day by geological topic.

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HiRISE: Giant cave on a giant volcano

Pavonis Mons is a giant shield volcano similar to (although larger than) those on the Big Island of Hawaii. These volcanoes are mostly made of stacks of overlapping lava flows. These images and digital terrain model (DTM) show a collapse … Continue reading

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THEMIS: Tharsis volcanics

THEMIS Image of the Day, June 10, 2014. The lava flows and depressions in this VIS image are located south of Alba Mons. More THEMIS Images of the Day by geological topic.

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THEMIS: Ceraunius Fossae

THEMIS Image of the Day, April 21, 2014. This complexly faulted region is part of Ceraunius Fossae, located south of Alba Mons. More THEMIS Images of the Day by geological topic.

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THEMIS: Lava flows

THEMIS Image of the Day, April 4, 2014. The lava flows in this VIS image most likely originated from Ascraeus Mons, one of the large Tharsis volcanos. More THEMIS Images of the Day by geological topic.

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THEMIS: Alba Mons flows

THEMIS Image of the Day, March 19, 2014. Today’s VIS image shows a small portion of the lava flows from Alba Mons. The depression and collapse features within it are part of the large system of tectonic features created by … Continue reading

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