Tag Archives: volcanics

THEMIS: Daedalia Planum’s volcanic vents

THEMIS Image of the Day, September 29, 2016. n the bottom half of this VIS image is a line of small volcanic vents. These vents emplaced lava to both sides of the vent ridge. The linear contact of dark/bright surface … Continue reading

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THEMIS: Lava flow and crater, Daedalia Planum

THEMIS Image of the Day, September 26, 2016. Today’s VIS image shows a small portion of Daedalia Planum. Daedalia Planum was created by lava flows from Arsia Mons. More THEMIS Images of the Day by geological topic.

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HiRISE: Intersecting channels near Olympica Fossae

This complicated area contains various types of channels, pits and fractures. We can determine the relative ages of the pits and channels based on which features cross-cut others. Older channels appear smooth-edged and shallow. Younger channels and pits are deeper … Continue reading

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HiRISE: Wind-scoured lava flows of Pavonis Mons

This image shows a circular impact crater and an oval volcanic caldera on the southern flank of a large volcano on Mars called Pavonis Mons. The caldera is also the source of numerous finger-like lava flows and at least one … Continue reading

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THEMIS: Lava flows on Solis Planum

THEMIS Image of the Day, September 19, 2016. This VIS image shows some of the extensive lava flows that comprise Solis Planum. [Local time is soon after sunrise, so lighting is coming from the right.] More THEMIS Images of the … Continue reading

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THEMIS: Syrtis Major Planum in false color

THEMIS Image of the Day, September 14, 2016. Today’s false color image shows part of Syrtis Major Planum, between Nili Patera and Meroe Patera. The THEMIS camera contains 5 filters. The data from different filters can be combined in multiple ways … Continue reading

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THEMIS: Tyrrhena Terra in false color

THEMIS Image of the Day, September 12, 2016. Today’s false color image shows part of the plains of Tyrrhena Terra. The THEMIS camera contains 5 filters. The data from different filters can be combined in multiple ways to create a false … Continue reading

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THEMIS: Syrtis Major wind streaks in false color

THEMIS Image of the Day, September 9, 2016. Today’s false color image shows part of Syrtis Major Planum, including several wind streaks that show winds are blowing from the northeast (upper right).  The THEMIS camera contains 5 filters. The data from … Continue reading

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THEMIS: Lava flows near Ascraeus Mons

THEMIS Image of the Day, August 24, 2016. Today’s VIS image shows a very small portion of the extensive lava flows of the Tharsis volcanic complex. These flows are located southeast of Ascraeus Mons. More THEMIS Images of the Day … Continue reading

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THEMIS: Cyane Fossae

THEMIS Image of the Day, August 16, 2016. This VIS image show part of Cyane Fossae, located near Alba Mons. The linear feature is bounded by faulting, creating a feature called a graben. The multiple crater-type forms may indicate that … Continue reading

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