Tag Archives: tectonics

THEMIS: Fault-edged blocks of Sacra Fossae

Posted on August 2, 2018 by rburnham

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: Not quite round

Posted on July 23, 2018 by rburnham

THEMIS Image of the Day, July 23, 2018. This VIS image shows an unnamed crater in Noachis Terra. The crater is relatively young, with several different structures on the floor and rim still visible. The inner rim of the crater … Continue reading →

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THEMIS: Winding channels of Elysium Fossae

Posted on July 16, 2018 by rburnham

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

Posted on July 11, 2018 by rburnham

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

Posted on July 10, 2018 by rburnham

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

Posted on July 9, 2018 by rburnham

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

Posted on July 3, 2018 by rburnham

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

Posted on June 28, 2018 by rburnham

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

Posted on June 21, 2018 by rburnham

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

Posted on June 14, 2018 by rburnham

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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