Tag Archives: faults

THEMIS: Flows and faults on Ascraeus Mons

THEMIS Image of the Day, August 29, 2017. Looking again at the southeastern flank of the volcano the narrow nature of the flows are visible. Given the steep sides of the volcano, flows from the summit run as narrow “rivers” … Continue reading

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HiRISE: Faults in Melas Chasma

Faults in Melas Chasma. Beautiful Mars series.

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THEMIS: Cracks across Margaritifer Terra plains

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

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: Cracks, pits, faults, & graben in the Labyrinth of Night

THEMIS Image of the Day, October 25, 2016. This VIS image shows some of the graben which form Noctis Labyrinthus. Graben are formed when pairs of faults cause the material between them to move downward, creating the linear trough. The … Continue reading

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THEMIS: Tanaica Montes

THEMIS Image of the Day, November 24, 2015. This VIS image shows the northern margin of Tanaica Montes. These hills are cut by fractures, which are in alignment with the regional trend of tectonic faulting found east of Alba Mons. … Continue reading

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THEMIS: Tectonics

THEMIS Image of the Day, September 4, 2015. The graben and collapse features in this image are part of Ceraunius Fossae, which is located south of Alba Mons. More THEMIS Images of the Day by geological topic.

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THEMIS: More Sirenum Fossae

THEMIS Image of the Day, May 1, 2015. The subtle paired fractues at the bottom of this VIS image are part of Sirenum Fossae, though it is hundreds of km away from yesterday’s image location. Numerous gullies at the top … Continue reading

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HiRISE: High terrain between Sinai and Solis Plana

The terrain in this observation looks like an ancient uplifted crustal block. The area is riddled with faults (big cracks that allow rocks to slide) and ridges that look like uncovered magma dikes. A Mars Orbital Camera picture shows the … Continue reading

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HiRISE: Eastern portion of Cerberus Fossae

Visible in this observation is a section of Cerberus Fossae (width approximately 250 meters), which are comprised of a series of rifts present located in Elysium Planitia just north the Martian equator. The fossae (Latin plural for a “ditch” or … Continue reading

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