Tag Archives: Valles Marineris

THEMIS: Mega-gully on edge of Valles Marineris

THEMIS Image of the Day, December 13, 2016. Today’s VIS image shows one of the mega sized gullies located on the plains just south of Ius Chasma. This gully empties from Sinai Planum into the chasma. More THEMIS Images of … Continue reading

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HiRISE: Colorful bedrock exposed by landslide

The steep walls of Valles Marineris sometimes fail, creating giant landslides. This provides a clean exposure of the underlying bedrock. This image of the north wall of Ganges Chasma reveals bedrock with diverse colors and textures, representing different geologic units. … Continue reading

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THEMIS: Canyons in the Labyrinth of Night

THEMIS Image of the Day, November 28, 2016. Today’s VIS image shows a small portion of Noctis Labyrinthus. Noctis Labyrinthus is a network of tectonic graben and collapse valleys on the western margin of Valles Marineris. More THEMIS Images of … Continue reading

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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: Landslide in Candor Chasma

THEMIS Image of the Day, November 16, 2016. Today’s false color image shows part of Candor Chasma. There is a landslide deposit from the rim of the chasma. The THEMIS VIS camera contains 5 filters. The data from different filters can … Continue reading

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HiRISE: Trundling boulders

This picture of the rim of Eos Chasma in Valles Marineris shows active erosion of the Martian surface. Layered bedrock is exposed in a steep cliff on a spur of the canyon rim. Dark layers in this cliff are made … 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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HiRISE: Deposits along Melas Chasma’s north wall

It has been known since the 1970s when the Viking orbiters took pictures of Mars that there are large (i.e., several kilometers-thick) mounds of light-toned deposits within the central portion of Valles Marineris. More recent higher resolution images of Mars, … Continue reading

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THEMIS: Ganges Chasma – false color

THEMIS Image of the Day, September 8, 2016. Today’s false color image shows part of Ganges Chasma. The THEMIS camera contains 5 filters. The data from different filters can be combined in multiple ways to create a false color image. These … 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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