Tag Archives: tectonics

THEMIS: Graben cuts across Claritas Fossae crater

THEMIS Image of the Day, December 7, 2018. Located on the northern margin of Aonia Terra, this unnamed crater interacts with one of the fossa, also called a graben. In this image, it is apparent that the tectonic depression crosses … Continue reading

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THEMIS: Tectonics and volcanism in Syria Planum

THEMIS Image of the Day, December 4, 2018. This VIS image shows a linear depression in Syria Planum. Volcanic activity, including broad shield volcanoes and extensive volcanic plains created this region of the Tharsis system south of Noctis Labyrinthus. Linear … Continue reading

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THEMIS: Graben and pits in Sirenum Fossae

THEMIS Image of the Day, November 20, 2018. This VIS image is located in Sirenum Fossae near Daedalia Planum. The arc at the bottom of the image is the rim of a crater that was dissected when the tectonic event … Continue reading

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THEMIS: Graben in Sirenum Fossae

THEMIS Image of the Day, November 5, 2018. This VIS image shows a section of Sirenum Fossae. The linear features are called graben, and are a sure sign of tension force in the local crust. Graben are formed by blocks … Continue reading

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

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: Possible rock falls on steep slopes

Possible rock falls on steep slopes in Cerberus Fossae. Our goal here is to take “before” images at HiRISE resolution in order to identify fresh rockfalls that might be able to be associated with seismic events or Marsquakes detected by … Continue reading

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Mars Express: Recent tectonics on Mars

These prominent trenches were formed by faults that pulled the planet’s surface apart less than 10 million years ago. The images were taken by ESA’s Mars Express on 27 January, and capture part of the Cerberus Fossae system in the … Continue reading

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THEMIS: False color on Thaumasia Planum and Coracis Fossae

THEMIS Image of the Day, September 6, 2018. Today’s VIS image is located on the margin between Thaumasia Planum and Coracis Fossae. The THEMIS VIS camera contains 5 filters. The data from different filters can be combined in multiple ways … Continue reading

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HiRISE: Crater gullies and fractures in Acidalia Planitia

This image shows the gullied western slopes of an unnamed crater (about 10 kilometers wide) in Acidalia Planitia. These slopes have gone through a complicated history of gully erosion of the bedrock layers in the upper section, followed by the … Continue reading

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HiRISE: Extensive layer exposures

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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