Tag Archives: mass wasting

HiRISE: Hues in a crater slope

Impact craters expose the subsurface materials on steep slopes. However, these slopes often experience rockfalls and debris avalanches that keep the surface clean of dust, revealing a variety of hues, like in this enhanced-color image, representing different rock types. The … Continue reading

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HiRISE: Equatorial proto-gullies

Equatorial proto-gullies. Beautiful Mars series.

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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: Rubble and ridges in Melas Chasma

THEMIS Image of the Day, December 5, 2016. Today’s VIS image shows part of the canyon wall of Melas Chasma. Landslides and “mass wasting” — the downslope movement of loose debris — have eroded the canyon walls and dumped a … Continue reading

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HiRISE: Knobs with lobate flows

Knobs with lobate flows around their margins. Beautiful Mars series.

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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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HiRISE: Bright streaks in slopes in Bahram Vallis

Bright streaks in slopes in Bahram Vallis. Beautiful Mars series.

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THEMIS: Gullies, channels, slumps in Terra Sirenum

THEMIS Image of the Day, October 31, 2016. This VIS image shows a group of craters in Terra Sirenum. The elongate crater in the top half of the image has numerous gullies dissecting the inner crater rim as will has … Continue reading

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THEMIS: Landslide into Tiu Valles

THEMIS Image of the Day, September 20, 2016. Today’s VIS image shows a landslide deposit from the cliffside along Tiu Valles. The mesas at the bottom of the image are part of Hydraotes Chaos. More THEMIS Images of the Day … Continue reading

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THEMIS: Juventae Chasma’s slides and slumps

THEMIS Image of the Day, September 13, 2016. Today’s false color image shows part of Juventae 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: Juventae Chasma – false color

THEMIS Image of the Day, August 31, 2016. Today’s false color images shows part of Juventae 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: Dark slope streaks in Arabia Terra crater

THEMIS Image of the Day, August 22, 2016. Today’s VIS image shows part of an unnamed crater in Arabia Terra. The inner rim of the crater has numerous dark streaks. It is possible that these features form due to downslope … Continue reading

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THEMIS: Dunes on floor of Juventae Chasma

THEMIS Image of the Day, August 19, 2016. Today’s image shows part of the southern margin of Juventae Chasma. Also visible are sand dunes located on the floor of the canyon. More THEMIS Images of the Day by geological topic.

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THEMIS: Juventae Chasma

THEMIS Image of the Day, August 18, 2016. This VIS image shows the southern wall of Juventae Chasma. More THEMIS Images of the Day by geological topic.

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