Tag Archives: tectonics

THEMIS: Tectonic chaos in Claritas Fossae

Posted on December 27, 2018 by rburnham

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: Her Desher Vallis in Noachis Terra

Posted on December 21, 2018 by rburnham

THEMIS Image of the Day, December 21, 2018. This VIS image shows a section of Her Desher Vallis. This channel is located in Noachis Terra. See more THEMIS Images of the Day by geological subject.

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THEMIS: Faulting and collapse in Sirenum Fossae

Posted on December 19, 2018 by rburnham

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: Acheron Catena

Posted on December 14, 2018 by rburnham

Acheron Catena. Beautiful Mars series. [More at links]

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HiRISE: Layering and faulting in layered deposits in Candor Chasma

Posted on December 7, 2018 by rburnham

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 cuts across Claritas Fossae crater

Posted on December 7, 2018 by rburnham

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

Posted on December 4, 2018 by rburnham

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

Posted on November 20, 2018 by rburnham

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

Posted on November 5, 2018 by rburnham

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

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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