Tag Archives: hills

THEMIS: Hills of Arena Colles

Posted on July 15, 2019 by rburnham

THEMIS Image of the Day, July 15, 2019. Today’s VIS image shows part of Arena Colles. The term colles means hills. Arena Colles is located on the margin where Terra Sabaea steps down in elevation into Utopia Planitia. Explore more … Continue reading →

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THEMIS: Hills and graben in Cerberus Fossae

Posted on July 8, 2019 by rburnham

THEMIS Image of the Day, July 8, 2019. The two linear depressions at the bottom of today’s VIS image are part of Cerberus Fossae. The features are termed graben and are formed by crustal extension that allows material to subside … Continue reading →

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THEMIS: Northern Terra Sabaea in false color

Posted on March 25, 2019 by rburnham

THEMIS Image of the Day, March 25, 2019. This false-color VIS image shows part of northern Terra Sabaea. Blue tones in false-color images usually indicate basaltic sand. The THEMIS VIS camera contains 5 filters. The data from different filters can … Continue reading →

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HiRISE: We found geology in a chaotic place

Posted on March 19, 2019 by rburnham

We found geology in a chaotic place. The terrain here lives up to its description as “chaotic:” we see small hills, mesas, buttes and valleys. This area is called Oxia Palus, and its debris likely came from Ravi Vallis, which … Continue reading →

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THEMIS: Bumpy hills of Arianes Colles

Posted on March 18, 2019 by rburnham

THEMIS Image of the Day, March 18, 2019. Today’s VIS image shows part of Ariadnes Colles. The term colles means hills or knobs. The hills appear brighter than the surrounding lowlands, likely due to relatively less dust cover. Ariadnes Colles … Continue reading →

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THEMIS: Field of hills in Terra Cimmeria

Posted on November 21, 2018 by rburnham

THEMIS Image of the Day, November 21, 2018. This image is located in Terra Cimmeria. The bright, irregular features are hills. This part of Terra Cimmeria is made up mostly by flat lying plains, with no other hills in the … Continue reading →

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HiRISE: Knobs on the rim of a circular feature

Posted on September 28, 2018 by rburnham

Knobs on the rim of a circular feature. And there might be clays on this cluster of knobs which as a unit, look very interesting. Beautiful Mars series. [More at links]

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THEMIS: Basaltic sand amid hills in Terra Sabaea

Posted on September 14, 2018 by rburnham

THEMIS Image of the Day, September 14, 2018. Today’s VIS image shows part of northern Terra Sabaea, where hills are common. The blue tones are usually locations of basaltic sand. The THEMIS VIS camera contains 5 filters. The data from … Continue reading →

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HiRISE: Hills and mesas

Posted on July 5, 2018 by rburnham

Hills and mesas. Beautiful Mars series. [More at links]

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THEMIS: Collapsing ground in Margaritifer Chaos

Posted on June 26, 2018 by rburnham

THEMIS Image of the Day, June 26, 2018. Today’s VIS image shows a small section on Margaritifer Chaos. The term chaos is applied to regions where the surface is being eroded to form mesas. As the surface processes continue individual … Continue reading →

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