Tag Archives: tectonics

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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THEMIS: Cyane Fossae on Alba Mons

Posted on June 21, 2019 by rburnham

THEMIS Image of the Day, June 21, 2019. This VIS image shows lava flows from Alba Mons, and a tectonic graben called Cyane Fossae. It is thought that the linear depressions that surround Alba Mons were created by a huge … 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: Small graben in Acidalia Planitia

Posted on June 17, 2019 by rburnham

THEMIS Image of the Day, June 17, 2019. This false-color image shows a graben located in Acidalia Planitia. Graben are depressions caused by movement of material downward between paired tectonic faults. The THEMIS VIS camera contains 5 filters. The data … Continue reading →

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THEMIS: Tectonic traces in Amenthes Fossae

Posted on June 13, 2019 by rburnham

THEMIS Image of the Day, June 13, 2019. The two linear depressions crossing this VIS image are graben created by tectonic activity. Explore more THEMIS Images of the Day by geological subject.

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THEMIS: The graben of Ceraunius Fossae

Posted on June 12, 2019 by rburnham

THEMIS Image of the Day, June 12, 2019. This VIS image shows part of Cerunius Fossae. The linear depressions are fault bounded features called graben. These features form from tectonic forces that are pulling apart the surface, created space for … Continue reading →

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THEMIS: Faulting in Labeatis Fossae

Posted on June 7, 2019 by rburnham

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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Tectonic evolution of Juventae Chasma

Posted on May 27, 2019 by rburnham

[Editor’s note: From a paper by Ranjan Sarkar and four co-authors recently published in Icarus.] Tectonic Evolution of Juventae Chasma, Mars, and the Deformational and Depositional Structural Attributes of the Four Major Light-toned Rock Exposures Therein • Juventae Chasma is … Continue reading →

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THEMIS: Angustus Labyrinthus, the ‘Inca City’

Posted on May 1, 2019 by rburnham

THEMIS Image of the Day, May 1, 2019. Angustus Labyrinthus is a unique region near the south polar cap. The squares formed by intersecting ridges earned the feature the informal name of the Inca City when it was discovered in … Continue reading →

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