Tag Archives: faults

HiRISE: Ridge in Hesperia Planum

Posted on July 5, 2019 by rburnham

A ridge in Hesperia Planum. Our objective is to look for fault offsets to see if these thrusts are surface breaking or not. Hesperia Planum is a broad lava plain in the southern highlands of Mars. The plain is notable … Continue reading →

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THEMIS: Labeatis Fossae in Tempe Terra

Posted on July 4, 2019 by rburnham

THEMIS Image of the Day, July 4, 2019. The linear depressions in this VIS image are graben called Labeatis Fossae. Graben are formed when extension between paired faults causes the material to move downward. These are part of a general … Continue reading →

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THEMIS: Arsia Mons faults, graben, and pit craters

Posted on July 1, 2019 by rburnham

THEMIS Image of the Day, July 1, 2019. Today’s VIS image is located on the lower flank of Arsia Mons. The linear features are tectonic faults. The lava flows originating from Arsia Mons are among the youngest on the surface … Continue reading →

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Do ice-squeezed aquifers cause marsquakes?

Posted on June 26, 2019 by rburnham

As the Mars InSight lander begins listening to the interior of Mars, some scientists are already proposing that some marsquakes could be signals of groundwater beneath the frozen surface of the Red Planet.  The idea, proposed by Michael Manga, a … Continue reading →

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THEMIS: Crazy craters

Posted on June 19, 2019 by rburnham

THEMIS Image of the Day, June 19, 2019. Today’s VIS image shows two craters located on the margin of Syrtis Major Planum. The two large craters are not circular. The flatter sides are caused by the pressure wave generated by … Continue reading →

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THEMIS: Tectonic ‘grid’ in Noctis Labyrinthis, plus a landslide triggered by impact

Posted on October 30, 2018 by rburnham

THEMIS Image of the Day, October 30, 2018. This VIS image is located in Noctis Labyrinthus. There are two directions of faults visible, which intersect at an approximately 90 degree angle. The faults running from bottom right to upper left … Continue reading →

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HiRISE: Extensive layer exposures

Posted on August 30, 2018 by rburnham

Extensive layer exposures. Be sure to read the caption of the stereo partner for this observation for some more information about the layers. Beautiful Mars series. [More at links]

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HiRISE: Nilosyrtis Mensae

Posted on June 21, 2018 by rburnham

Let us now contemplate Nilosyrtis Mensae. There is a fault attached to a trough here; both have the same orientation. This image helps us to understand stress fields on Mars. Beautiful Mars series. [More at links]

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HiRISE: The fault in our Mars

Posted on December 14, 2017 by rburnham

This image of northern Meridiani Planum shows faults that have disrupted layered deposits. Some of the faults produced a clean break along the layers, displacing and offsetting individual beds (yellow arrow). Interestingly, the layers continue across the fault and appear … Continue reading →

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THEMIS: Faults weaken summit caldera wall on Pavonis Mons

Posted on November 8, 2017 by rburnham

THEMIS Image of the Day, November 8, 2017. This image shows the western part of the smaller summit caldera on Pavonis Mons. On this side of the caldera is a complex region of fault related collapse of the wall of … Continue reading →

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