Tag Archives: volcanics

HiRISE: The pits of Elysium Mons

During the 2018 Mars dust storm, we obtained a clear view of the summit of the giant volcano Elysium Mons. We see the western rim and floor of the caldera, and a chain of pits (called a “catena”) extending from … Continue reading

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THEMIS: Lava flows on plains east of Hecates Tholus

THEMIS image of the Day, October 16, 2018. This VIS image shows the plains to the east of Hecates Tholus. In this false-color view lie several lava flow fronts and scattered impact craters. The THEMIS VIS camera contains 5 filters. … Continue reading

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HiRISE: Rising above it in Amazonis Planitia

This image shows a bright, rectangular-looking landform surrounded by a dark floor. How did this feature get here if it looks so different than its surroundings? The feature resembles a plateau. Dark streaks mark steep slopes on its sides while … Continue reading

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THEMIS: Granicus Valles in false color

THEMIS Image of the Day, October 15, 2018. This VIS image shows some of the complex channels that make up Granicus Valles. This channel system is located west of Elysium Mons. The THEMIS VIS camera contains 5 filters. The data … Continue reading

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HiRISE: Linear vent and flows to the southeast of Zunil Crater

A linear vent and flows to the southeast of Zunil Crater. This is located within the Elysium quadrangle on Mars, a region with a volcanic past that for which we can still see evidence of old lava flows. Beautiful Mars … Continue reading

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THEMIS: High on the east flank of Pavonis Mons

THEMIS Image of the Day, October 11, 2018. This false-color VIS image shows the eastern flank of Pavonis Mons. The darker streaks are created by wind action, and the curving lines are faults produced when the volcano “relaxed” under the … Continue reading

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THEMIS: Over the summit of Pavonis Mons

THEMIS Image of the Day, September 28, 2018. Today’s VIS image crosses the flanks and summit of Pavonis Mons. Calderas are down-dropped areas which collapse when lava inside the volcano withdraws, removing its support for the heavy rock layers above. … Continue reading

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HiRISE: Clay outcrop near Maja Valles

A clay outcrop near Maja Valles. Maja Valles is a large, ancient outflow channel in the Lunae Palus quadrangle on Mars. The name is a Nepali word for “Mars”, and parts of the system have been partially buried by thin volcanic … Continue reading

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HiRISE: Up above the dust clouds

When much of Mars was enshrouded by a recent massive dust storm, HiRISE captured this clear view of the surface because of the target’s unique location. Olympus Mons is the biggest volcano in the Solar System, reaching a height of … Continue reading

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THEMIS: Pits and channels on Ascraeus Mons

THEMIS Image of the Day, August 28, 2018. This VIS image shows a portion of the northern flank of Ascreaus Mons. Multiple linear depressions cut across the surface lava flows, having formed after the surface in this region. The chains … Continue reading

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