Tag Archives: tectonics

THEMIS: Winding channels of Elysium Fossae

THEMIS Image of the Day, July 16, 2018. Today’s VIS image shows part of one of the Elysium Fossae on the western flank of the Elysium volcanic complex. The fossae have both a tectonic and volcanic origin. The linear fractures, … Continue reading

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HiRISE: Fractures on Pavonis Mons

Fractures on Pavonis Mons. This observation was suggested by students at the Mars Academy in Brazil. Here is their original rationale: “This “stressed-out” region of the northeastern slopes of Pavonis Mons contains multiple sets of sub-parallel faults, with down-thrown blocks indicating tensional … 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: Flood-scoured island-mesa in Kasei Valles

THEMIS Image of the Day, July 9, 2018. Today’s VIS image is located near the beginning of Kasei Valles. At the top of the image is the relative high land of Lunae Planum. The Kasei Valles channel is just below. … Continue reading

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THEMIS: Terra Sabaea lava tube turned into an open channel

THEMIS Image of the Day, July 3, 2018. This VIS image is located in Terra Sabaea near the margin of Syrtis Major Planum. The channel-like feature in the bottom of the image is an unnamed feature. There is a high … Continue reading

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THEMIS: Faulting and landslides in Tithonium Chasma

THEMIS Image of the Day, June 28, 2018. This VIS image shows the eastern edge of Tithonium Chasma, one of the large valley systems that comprise Valles Marineris. Large fractures are visible on the upper margin of the chasma. Downward … Continue reading

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HiRISE: Nilosyrtis Mensae

Let us now contemplate Nilosyrtis Mensae. There is a fault attached to a trough here; both have the same orientation. This image helps us to understand stress fields on Mars. Beautiful Mars series. [More at links]

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THEMIS: Dust avalanches in Lycus Sulci

THEMIS Image of the Day, June 14, 2018. Lycus Sulci is a very complex region surrounding the northern and western flanks of Olympus Mons. This VIS image shows some of the tectonic ridges found in Lycus Sulci as well as … Continue reading

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THEMIS: Winding channel in Terra Sabaea

THEMIS Image of the Day, June 1, 2018. The northern margin of Terra Sabaea is a complex area between a cratered highland and complexly eroded lower plains. This VIS image of the region shows just one of the numerous unnamed … Continue reading

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THEMIS: Complex erosion on border of Nili Fossae and Isidis Planitia

THEMIS Image of the Day, May 29, 2018. This VIS image is located on the margin of the Nili Fossae region and Isidis Planitia. At the bottom of the image a channel feature is visible, the branch on the right … Continue reading

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