Tag Archives: Valles Marineris

HiRISE: Strata always have a story

Posted on April 4, 2018 by rburnham

Strata always have a story. This area is located within the massive Valles Marineris canyon system, and was suggested to monitor for recurring slope lineae on a slope to the south, but we thought the gorgeous bedrock deserved to be … Continue reading →

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Stepped fans and phyllosilicates on Mars

Posted on April 2, 2018 by rburnham

Planetary Geomorphology Image of the Month, April 1, 2018: Peter Grindrod (Natural History Museum, London, UK). A number of different studies have catalogued features on Mars that could be given the general heading of sedimentary fans… These features occur whenever … Continue reading →

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THEMIS: Mega-gullies of Louros Valles

Posted on March 2, 2018 by rburnham

THEMIS Image of the Day, March 2, 2018. Ius Chasma is unique from the other chasmata of Valles Marineris in possessing mega-gullies on both sides of the chasma. The largest mega-gullies are located in Sinai Planum, dissecting those plains and … Continue reading →

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THEMIS: Sapping gullies in Louros Valles

Posted on March 1, 2018 by rburnham

THEMIS Image of the Day, March 1, 2018. Ius Chasma is unique from the other chasmata of Valles Marineris in possessing mega gullies on both sides of the chasma. The largest mega gullies are located in Sinai Planum, dissecting those … Continue reading →

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THEMIS: Colliding landslides in Ius Chasma

Posted on February 28, 2018 by rburnham

THEMIS Image of the Day, February 28, 2018. This VIS image shows the eastern end of Ius Chasma. The southern canyon wall is at the bottom of the image, with dark sand and sand dunes. The presence of mobile sand … Continue reading →

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THEMIS: Eroding landslide in Ius Chasma

Posted on February 27, 2018 by rburnham

THEMIS Image of the Day, February 27, 2018. This VIS image shows part of the eastern end of Ius Chasma. Geryon Montes are located in the bottom half of the image. Between the montes and the southern wall face is … Continue reading →

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THEMIS: Possible delta in Ius Chasma?

Posted on February 26, 2018 by rburnham

THEMIS Image of the Day, February 26, 2018. This VIS image shows part of eastern Ius Chasma. The lower elevations of Geryon Montes are located at the top of the image. Between the montes and the southern wall face is … Continue reading →

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THEMIS: Dunes in Ius Chasma

Posted on February 23, 2018 by rburnham

THEMIS Image of the Day, February 23, 2018. Continuing eastward thru central Ius Chasma, this image shows a section of chasma that is not dominated by landslide deposits. Geryon Montes, in the upper half of the image, has several visible … Continue reading →

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THEMIS: Geryon Montes and tectonic widening of Ius Chasma

Posted on February 22, 2018 by rburnham

THEMIS Image of the Day, February 22, 2018. Moving into the central part of Ius Chasma, the canyon profile changes. What started as a large graben south of the main chasma wall, has widened to create a central high ridge … Continue reading →

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THEMIS: Canyon wall failure in Ius Chasma

Posted on February 21, 2018 by rburnham

THEMIS Image of the Day, February 21, 2018. Continuing eastward along Ius Chasma, this image shows the eastern section of the large landslide deposit seen in yesterday’s post. A landslide is a failure of slope due to gravity. They initiate … Continue reading →

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