Tag Archives: ridges

HiRISE: Buried by time

Posted on March 27, 2019 by rburnham

Buried by time. Over time, this crater was buried by folded deposits, although we can still tell it is an impact crater. However, we can still see ridges and gullies. Are these ridges made of material that proved more resistant … Continue reading →

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HiRISE: Strangely silent in southwest Arabia Terra

Posted on June 5, 2018 by rburnham

Strangely silent in southwest Arabia Terra. Beautiful Mars series. [More at links]

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HiRISE: Curved ridge and layered materials

Posted on April 19, 2018 by rburnham

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…

Posted on April 10, 2018 by rburnham

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

Posted on April 9, 2018 by rburnham

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

Posted on March 7, 2018 by rburnham

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

Posted on December 13, 2017 by rburnham

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

Posted on August 3, 2017 by rburnham

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

Posted on July 3, 2017 by rburnham

Ridges in a crater floor. Beautiful Mars series.

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

Posted on June 23, 2017 by rburnham

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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