Tag Archives: graben

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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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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THEMIS: Small graben in Acidalia Planitia

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

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: Elysium Planitia in false color

THEMIS Image of the Day, March 26, 2019. Today’s false-color VIS image is located in Elysium Planitia. The linear depressions at the top of the image are created by tectonic faults, where the center block of material has dropped downward … Continue reading

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A proposed development sequence for the Elysium volcanic province

[Editor’s note: From a paper by Brian Kneller and two co-authors recently published in the Journal of Geophysical Research.] Correlation between graben orientation, channel direction change and tectonic loading: The Elysium Province, Mars • Graben are systematically arranged around sources … 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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