Tag Archives: Olympus Mons

THEMIS: Lava flows

THEMIS Image of the Day, May 1, 2014. The lava flows in today’s image are located east of Olympus Mons. More THEMIS Images of the Day by geological topic.

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THEMIS: Olympus Mons lava

THEMIS Image of the Day, March 13, 2014. Today’s VIS image shows lava flows that originated at Olympus Mons. More THEMIS Images of the Day by geological topic.

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THEMIS: Volcanic complexity in Tharsis

THEMIS Image of the Day, March 7, 2014. This VIS image shows a small region between Olympus Mons and Sulci Gordii. There are lava flows, tectonic depressions and channels visible in the image. All the features are related to the … Continue reading

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THEMIS image: Olympus Mons summit caldera

THEMIS Image of the Day, February 19, 2014. This VIS image shows the central portion of the complex caldera at the summit of Olympus Mons. More THEMIS Images of the Day by geological topic.

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THEMIS image: Olympus Mons summit

THEMIS Image of the Day, February 18, 2014. Today’s VIS image shows the eastern portion of the complex caldera at the summit of Olympus Mons. More THEMIS Images of the Day by geological topic.

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THEMIS image: Olympus Mons escarpment

THEMIS Image of the Day, February 4, 2014. This VIS image shows part of the escarpment that encircles Olympus Mons. This image is located on the southeastern flank of the volcano.

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THEMIS image: Olympus Mons

THEMIS Image of the Day, February 3, 2014. The narrow lava flows in this VIS image are located on the northeastern flank of Olympus Mons, below the large escarpment that encircles the volcano.

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“Olympic” ocean in Tharsis?

Two features of Olympus Mons have puzzled geologists since they were discovered decades ago. First are the “aureole” deposits, rough terrain extending as much as 400 kilometers (250 miles) from the volcano. And second is the scarp, about 8,000 meters … Continue reading

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How to date a volcano

Without rock samples to analyze in a laboratory, how can you tell the age of a Martian volcano? A team led by Stuart Robbins (University of Colorado) used high-resolution images to count craters in the calderas (summit collapse pits) of … Continue reading

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