Tag Archives: faulting

HiRISE: Faulting Mars

This region of Xanthe Terra has mostly been contracted due to thrust faulting, but this local region shows evidence of extensional faulting, also called normal faulting. When two normal faults face each other, they create a bathtub-like depression called a … Continue reading

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THEMIS: Arsia Mons summit caldera

THEMIS Image of the Day, July 11, 2016. Today’s VIS image shows part of the summit caldera of Arsia Mons. More THEMIS Images of the Day by geological topic.

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THEMIS: Cerberus Fossae

THEMIS Image of the Day, June 10, 2016. Today’s VIS image shows a portion of Cerberus Fossae. The narrow linear features are graben, formed by a block of material moving downward along paired faults. More THEMIS Images of the Day … Continue reading

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THEMIS: Olympica Fossae

THEMIS Image of the Day, May 25, 2016. Today’s image shows part of Olympica Fossae. The large depression in the bottom half of the image is part of the fossae itself, and is probably a graben. Graben are formed when … Continue reading

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Mars Express: Cut crater in Memnonia Fossae

An extensive network of fault lines cut through this region of Mars, including one that slices clean through an ancient 52 km-wide crater. The fault network is likely linked to the formation of the Tharsis Bulge, a region to the … Continue reading

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HiRISE: An east watershed for Jezero Crater

Jezero Crater is candidate future landing site that contains sediments deposited by at least three ancient rivers. This image was targeted to the eastern headlands of the river flowing in from that direction. In addition to complex erosional patterns, there … Continue reading

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THEMIS: Cerberus Fossae

THEMIS Image of the Day, April 5, 2016. Today’s VIS image shows a portion of Cerberus Fossae, a set of linear graben located south of Tartarus Montes. More THEMIS Images of the Day by geological topic.

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THEMIS: Ceraunius Fossae

THEMIS Image of the Day, February 16, 2016. Today’s VIS image shows several of the graben that make up Ceraunius Fossae. These fault bounded valleys are located south of Alba Mons and are part of the extensive graben system that … Continue reading

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THEMIS: Tempe Terra

THEMIS Image of the Day, February 15, 2016. This VIS image is located on the margin of Tempe Terra near Chryse Planitia. Several channels are visible as well as tectonic features. The linear feature below the channel is most likely … Continue reading

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THEMIS: Nili Fossae – false color

THEMIS Image of the Day, January 5, 2016. The THEMIS camera contains 5 filters. The data from different filters can be combined in multiple ways to create a false color image. These false color images may reveal subtle variations of … Continue reading

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