Tag Archives: ILDs

THEMIS: Eroded sediments in Ophir Chasma

THEMIS Image of the Day, November 23, 2016. Today’s false color image shows part of Ophir Chasma. The mounds on the floor are of unknown origin and contain layers, probably laid down in past climate cycles. They appear to have … Continue reading

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THEMIS: Layered deposits in Ophir Chasma

THEMIS Image of the Day, October 14, 2016. Today’s false color image shows part of Ophir Chasma, with layered deposits on its floor. The THEMIS VIS camera contains 5 filters. The data from different filters can be combined in multiple ways … Continue reading

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THEMIS: Ganges Chasma’s history book

THEMIS Image of the Day, July 22, 2016. Today’s false color image shows part Ganges Chasma. The THEMIS VIS camera contains 5 filters. The data from different filters can be combined in multiple ways to create a false color image. … Continue reading

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THEMIS: Capri Mensa – false color

THEMIS Image of the Day, June 29, 2016. Today’s false color image shows part of Capri Mensa. The THEMIS VIS camera contains 5 filters. The data from different filters can be combined in multiple ways to create a false color image. … Continue reading

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THEMIS: Candor Chasma – false color

THEMIS Image of the Day, April 2, 2015. The THEMIS VIS camera contains 5 filters. The data from different filters can be combined in multiple ways to create a false color image. These false color images may reveal subtle variations … Continue reading

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THEMIS: Candor Chasma false color

THEMIS Image of the Day, January 22, 2015. The THEMIS VIS camera contains 5 filters. The data from different filters can be combined in multiple ways to create a false color image. These false color images may reveal subtle variations … Continue reading

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Diverted landslides in Valles Marineris

Planetary Geomorphology Image of the Month, December 2014: Peter Grindrod (University of London). Layered deposits on Mars are a globally-pervasive record of the sedimentary history of the planet. These deposits not only preserve long sequences of Mars’ stratigraphic record, but … Continue reading

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HiRISE image: light-toned deposits along Coprates Chasma slopes

Valles Marineris contains kilometers-thick light-toned layered sedimentary deposits along many of its floors. In this image, similar light-toned layered deposits are observed, except these are found along steeper wallrock slopes in Coprates Chasma. Compositional data from CRISM and also stereo … Continue reading

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Did ice and dust make layered deposits in Valles Marineris?

Vast mounds of layered material lie in numerous places throughout the giant canyon system of Valles Marineris, and especially in Candor Chasma, Ophir Chasma, and Melas Chasma. The origin of these “interior layered deposits” (ILDs) have been debated since they … Continue reading

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