Tag Archives: layers

HiRISE: Geologic history revealed in Valles Marineris

Posted on February 5, 2018 by rburnham

An enhanced-color image reveals bedrock that is several kilometers below the top of the giant Valles Marineris canyons. The upper layers have relatively little diversity of colors and textures, but deeper levels show more complex processes. The upper layers could … Continue reading →

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THEMIS: Tithonium Chasma

Posted on February 5, 2018 by rburnham

THEMIS Image of the Day, February 5, 2018. This VIS image shows part of the central region of Tithonium Chasma. The steep wall of the canyon is visible at the top of the image. The top of the canyon walls … Continue reading →

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HiRISE: Eroded layers in Shalbatana Valles

Posted on January 24, 2018 by rburnham

Layers, probably sedimentary in origin, have undergone extensive erosion in this image of Shalbatana Valles, a prominent channel that cuts through Xanthe Terra. This erosion has produced several small mesas and exposed light-toned material that may differ in composition from … Continue reading →

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HiRISE: Dipping layers in crater near Hrad Vallis

Posted on January 9, 2018 by rburnham

Dipping layers in crater near Hrad Vallis. Beautiful Mars series.

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HiRISE: Bedrock layers

Posted on September 7, 2017 by rburnham

Bedrock layers. Beautiful Mars series.

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HiRISE: Crater rim layers, rubble, and gullies

Posted on August 10, 2017 by rburnham

This is a close view of the rim and upper wall of an impact crater on the Martian surface. The layers in enhanced color are exposed subsurface strata that are relatively resistant to erosion. Boulder-like rubble beyond the crater rim … Continue reading →

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THEMIS: North polar ice cap troughs and layers

Posted on June 28, 2017 by rburnham

THEMIS Image of the Day, June 28, 2017. Do you see what I do? Looks like a person’s profile at the bottom of this image. (THEMIS Art #135) More THEMIS Images of the Day by geological topic.

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HiRISE: Layers on rim of southern impact crater

Posted on June 19, 2017 by rburnham

Swoop! – Layers on the rim of an impact crater in the southern region of Mars. Beautiful Mars series.

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HiRISE: Layers along a mesa in Hellas Planitia

Posted on May 5, 2017 by rburnham

Layers along a mesa in Hellas Planitia. Beautiful Mars series.

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HiRISE: Windblown sand in Ganges Chasma

Posted on April 25, 2017 by rburnham

Dark, windblown sand covers intricate sedimentary rock layers in this image from Ganges Chasma, a canyon in the Valles Marineris system. These features are at once familiar and unusual to those familiar with Earth’s beaches and deserts. Most sand dunes … Continue reading →

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