Tag Archives: faulting

THEMIS: Cracks across Margaritifer Terra plains

Posted on March 13, 2017 by rburnham

THEMIS Image of the Day, March 13, 2017. Today’s false color image shows part of the plains of Margaritifer Terra, cracked by geological faulting. The THEMIS VIS camera contains 5 filters. The data from different filters can be combined in … Continue reading →

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THEMIS: Faulting in Margaritifer Terra

Posted on February 10, 2017 by rburnham

THEMIS image of the Day, February 10, 2017. Today’s false color image shows some of the plains of Margaritifer Terra, which have been cracked by faulting. The faults may have released groundwater that enlarged the channels. The THEMIS VIS camera … Continue reading →

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THEMIS: Thaumasia Planum in false color

Posted on February 8, 2017 by rburnham

THEMIS Image of the Day, February 8, 2017. Today’s false color image shows part of the plains of Thaumasia Planum. The THEMIS VIS camera contains 5 filters. The data from different filters can be combined in multiple ways to create … Continue reading →

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THEMIS: Faulting & graben in Claritas Fossae

Posted on January 13, 2017 by rburnham

THEMIS Image of the Day, January 13, 2017. Today’s VIS image shows graben called Claritas Fossae. These are caused when the ground is pulled apart, and the land between parallel faults drops down. More THEMIS Images of the Day by … Continue reading →

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THEMIS: Tectonics in Sirenum Fossae

Posted on January 12, 2017 by rburnham

THEMIS Image of the Day, January 12, 2017. The linear depressions in this VIS image are graben. Graben are formed from tectonic activity with large blocks of material moving downward between paired faults. The crater in the bottom half of … Continue reading →

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THEMIS: Tectonics showcase in Sirenum Fossae

Posted on November 29, 2016 by rburnham

THEMIS Image of the Day, November 29, 2016. Today’s VIS image shows part of Sirenum Fossae, a large graben on the margin between Terra Sirenum and Daedalis Planum. Grabens are formed by the downward movement of material between parallel tectonic … Continue reading →

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HRSC: A record of ancient tectonic stress

Posted on November 3, 2016 by rburnham

Sets of ridges and troughs some 1000 km north of the giant Olympus Mons volcano contain a record of the intense tectonic stresses and strains experienced in the Acheron Fossae region on Mars 3.7–3.9 billion years ago. This scene, captured … Continue reading →

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THEMIS: Cross-cutting faults lead to sharply faceted terrain in Gigas Sulci

Posted on November 3, 2016 by rburnham

THEMIS Image of the Day, November 3, 2016. Today’s VIS image shows a small portion of Gigas Sulci. Located in the Tharsis region, these small linear ridges follow two trends at angle to each other, one toward the upper left … Continue reading →

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THEMIS: When groundwater escapes: Hydaspis Chaos

Posted on November 2, 2016 by rburnham

THEMIS Image of the Day, November 2, 2016. The region of hills and mesas at the top of this VIS image are part of Hydaspis Chaos, a typical area of “chaotic terrain.” Scientists think these form when groundwater under pressure … Continue reading →

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HiRISE: Tilted blocks of layered bedrock

Posted on October 6, 2016 by rburnham

Tilted blocks of layered bedrock. Beautiful Mars series.

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