Tag Archives: ridges

HiRISE: Curved ridge and layered materials

Curved ridge and layered materials. Is the curved ridge a remnant of inverted stream channel sediment, crater ejecta, or something else (e.g., tectonic)? Are the layered materials sedimentary rock? Beautiful Mars series.

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HiRISE: Dunes flowing…

Dunes flowing like martian wine. There are also some nice ridges and light-toned deposits here in Orson Welles Crater. Beautiful Mars series.

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HiRISE: Dare to climb

Dare to climb.  These steep slopes in East Coprates Chasma are a rappeller’s delight. Beautiful Mars series.

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HiRISE: Ridges near Nirgal Valles

In this observation, we see a set of straight ridges in ancient bedrock near Nirgal Valles. The patterns indicate fractures from tectonic stresses, but how have they been hardened to now stand in positive relief after billions of years of … Continue reading

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HiRISE: A valley near the northern lowlands

The goal of this observation is to determine the source of the ridge within a possible moraine that is also present in another HiRISE image. A moraine is a mass of rocks and sediment carried down and deposited by a … Continue reading

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HiRISE: Multiple curved ridges, Protonilus Mensae

Multiple curved ridges at the end of a valley in Protonilus Mensae. Beautiful Mars series.

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HiRISE: Ridges in a crater floor

Ridges in a crater floor. Beautiful Mars series.

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THEMIS: Winding ridges & ‘basketball terrain’ in Arcadia Planitia

THEMIS Image of the Day, June 23, 2017. Do you see what I see? Make a wish and then break the wishbone! (THEMIS Art #132) More THEMIS Images of the Day by geological topic.

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THEMIS: The ridge on Newton Crater’s floor

THEMIS Image of the Day, May 30, 2017. Today’s false color images shows part of the large ridge on the floor of Newton Crater in Terra Sirenum. The THEMIS VIS camera contains 5 filters. The data from different filters can … Continue reading

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HiRISE: Deeply incised gullies and arcuate ridges

Deeply incised gullies and arcuate ridges. Beautiful Mars series.

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