Tag Archives: sediments

HiRISE: On the contemplation of the stratigraphy of another planet

On the contemplation of the stratigraphy of another planet. 255  km above the surface. This image uses the infrared-red-blue filter of the HiRISE camera. Beautiful Mars series.

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HiRISE: Clays of Ladon Basin

Ladon Basin was a large impact structure that was filled in by the deposits from Ladon Valles, a major ancient river on Mars. These wet sediments were altered into minerals such as various clay minerals. Clays imply chemistry that may … Continue reading

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HiRISE: Eroded layers in Shalbatana Valles

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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Sublimation of water can levitate sediments for downslope movement

Scientists from The Open University (OU) have discovered a process that could explain the long-debated mystery of how land features on Mars are formed in the absence of significant amounts of water. Experiments carried out in the OU Mars Simulation … Continue reading

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HiRISE: Window into the past

The layered sedimentary deposits inside the giant canyons of Mars have puzzled scientists for decades. These light toned deposits have fine, horizontal laminations that are unlike the rugged rim rock of the Valles Marineris. Various ideas for the origin of … Continue reading

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HiRISE: A sequence of beauty in Terby Crater

The north-facing wall of a moat-like depression in the middle of Terby Crater exposes a beautiful 400 meter-high sequence of light-toned, repetitive sedimentary layers. These deposits are often obscured by darker-toned patches of material as well as ripples and dunes. … Continue reading

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HiRISE: Possible aqueous sediments in Hellas Planitia

Possible aqueous sediments in Hellas Planitia. Beautiful Mars series.

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HiRISE: The White Cliffs of ‘Rover’

This image reminds us of the rugged and open terrain of a stark shore-line, perhaps of an island nation, such as the British Isles. A close-up in enhanced color produces a striking effect, giving the impression of a cloud-covered cliff … Continue reading

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THEMIS: Asimov Crater’s sedimentary infill

THEMIS Image of the Day, May 1, 2017. Today’s false color image shows more of Asimov Crater. Gullies along the crater rim are visible in this image. Where did the crater’s infill come from?  What is removing it? The THEMIS … Continue reading

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HiRISE: Complex terrain on floor of Hellas Planitia

Complex terrain on the floor of Hellas Planitia. Beautiful Mars series.

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