Tag Archives: faulting

THEMIS: Hills and graben in Cerberus Fossae

THEMIS Image of the Day, July 8, 2019. The two linear depressions at the bottom of today’s VIS image are part of Cerberus Fossae. The features are termed graben and are formed by crustal extension that allows material to subside … Continue reading

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Do ice-squeezed aquifers cause marsquakes?

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: Faulting in Labeatis Fossae

THEMIS Image of the Day, June 7, 2019. The linear depressions in this VIS image were created by tectonic forces. The sides of the depression are faults. Paired faults will allow the block of material between them to “slide down” … Continue reading

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THEMIS: Tectonics meets volcanism in Claritas Fossae

THEMIS Image of the Day, January 10, 2019. This VIS image shows part of Claritas Fossae. The linear features (fossae) are faults. This region of Mars had very active tectonism and volcanism, resulting in the huge volcanos like Arsia Mons … Continue reading

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THEMIS: Tectonic scars in Sirenum Fossae

THEMIS Image of the Day, January 4, 2019. The linear features in this VIS image are graben called Sirenum Fossae. Graben are formed when blocks of material move downward between parallel faults. The faults were created by tectonic stresses in … Continue reading

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THEMIS: Tectonic chaos in Claritas Fossae

THEMIS Image of the Day, December 27, 2018. Located between the lava plains of Daedalia Planum and Solis Planum, Claritas Fossae is a graben-filled highland. Graben are formed by tectonic activity. In this region of Mars extensive and long lived … Continue reading

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THEMIS: Faulting and collapse in Sirenum Fossae

THEMIS Image of the Day, December 19, 2018. The linear depressions in this VIS image are part of Sirenum Fossae. These depressions are called graben, which form by the down drop of material between two parallel faults. The faults are … Continue reading

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HiRISE: Layering and faulting in layered deposits in Candor Chasma

Layering and faulting in layered deposits in Candor Chasma. This observation was a last minute one done as nadir-only, meaning when the camera is pointing straight down at the surface, as opposed to an angle when we want to create … 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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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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