Tag Archives: graben

THEMIS: Tectonic ‘grid’ in Noctis Labyrinthis, plus a landslide triggered by impact

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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HiRISE: Possible rock falls on steep slopes

Possible rock falls on steep slopes in Cerberus Fossae. Our goal here is to take “before” images at HiRISE resolution in order to identify fresh rockfalls that might be able to be associated with seismic events or Marsquakes detected by … Continue reading

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THEMIS: Graben in Tempe Fossae in false color

THEMIS Image of the Day, October 26, 2018. This false-color VIS image shows part of Tempe Fossae. Tempe Fossae is a series of tectonic graben that cross Tempe Terra. The downward movement of blocks of material between bounding faults create … Continue reading

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THEMIS: Lava channels on Pavonis Mons

THEMIS Image of the Day, August 24, 2018. This VIS image shows part of the southwestern flank of Pavonis Mons. The channel and nearby oval depressions are both related to the flow of lava. Narrow lava flows can create channels. … Continue reading

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THEMIS: Channel flow in Sacra Fossae

THEMIS Image of the Day, August 16, 2018. The right-angle intersection of the depressions in this VIS image is one of the graben that form Sacra Fossae. The fossae are located on Sacra Mensa, near the beginning of Kasei Valles. … Continue reading

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THEMIS: Fault-edged blocks of Sacra Fossae

THEMIS Image of the Day, August 2, 2018. The right angle intersections in this VIS image are some of the graben that form Sacra Fossae. The fossae are located on the margin of Lunae Planum near the beginning of Kasei … Continue reading

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THEMIS: Giant pit crater collapse on Alba Mons

THEMIS Image of the Day, July 10, 2018. This VIS image is located on the eastern flank of Alba Mons. Linear faults and graben surround the volcano aligned north/south, intersecting and deflected around the summit. The large graben is called … Continue reading

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THEMIS: Pavonis Mons flank meets volcanic plains

THEMIS Image of the Day, July 4, 2018. Today’s VIS image is of the eastern flank of Pavonis Mons where the volcano meets the surrounding volcanic plains. The arced features towards the top of the image are fractures and lava … Continue reading

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THEMIS: Cerberus Fossae, source of floods

THEMIS Image of the Day, May 22, 2018. Today’s VIS image shows a section of Cerberus Fossae. Located southeast of the Elysium Planitia volcanic complex, the linear graben was created by tectonic forces related to the volcanic activity. The fossa … Continue reading

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THEMIS: Lava flows chopped by graben in Olympica Fossae

THEMIS Image of the Day, May 21, 2018. The linear channel in the bottom half of this VIS image is part of Olympica Fossae. Olympica Fossae is a complex channel form located on the Tharsis plains between Alba Mons and … Continue reading

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