Tag Archives: tectonics

THEMIS: Nili Fossae graben

THEMIS Image of the Day, August 16, 2019. The two linear depressions in this VIS image are part of the Nili Fossae fracture system. Nili Fossae is the name of a collection of curved faults and down-dropped blocks of crust … Continue reading

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THEMIS: Mega-gullies in Sinai Planum

THEMIS Image of the Day, July 31, 2019. Today’s VIS image shows part a section of a mega gully. Located on the plains of Sinai Planum, it is just one of a number of huge channels that line the cliff … Continue reading

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THEMIS: Elysium Chasma

THEMIS Image of the Day, July 30, 2019. This fracture system is called Elysium Chasma. Located west of Elysium Mons, it is just one of many large fractures in the Elysium volcanic complex. Explore more THEMIS Images of the Day … Continue reading

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THEMIS: Graben in Elysium Fossae

THEMIS Image of the Day, July 29, 2019. Today’s VIS image shows a section of one of the graben that comprise Elysium Fossae. Graben are formed during tectonic activity, where blocks of material slide down between paired faults. Graben are … Continue reading

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THEMIS: Cerberus Fossae and Tartarus Montes

THEMIS Image of the Day, July 25, 2019. Today’s VIS image shows part of Cerberus Fossae. These large graben cut across the Tartarus Montes in Elysium Planitia. A graben forms when large blocks of material slide downward between paired faults … Continue reading

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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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HiRISE: Ridge in Hesperia Planum

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

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

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

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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