Tag Archives: graben

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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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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THEMIS: Graben cuts across Claritas Fossae crater

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: Solis Planum lava flows and graben

THEMIS Image of the Day, November 30, 2018. Today’s VIS image shows part of Solis Planum. Both volcanic and tectonic forces created the features in this image. The linear features that run diagonally across the image are fault features called … Continue reading

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THEMIS: Graben and pits in Sirenum Fossae

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: Channel in Coracis Fossae

THEMIS Image of the Day, November 19, 2018. Today’s VIS image shows one of the numerous channel features that dissect the highlands between Solis Planum and Aonia Terra. The linear features in the region include both tectonic graben and fluvial … Continue reading

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