Tag Archives: volcanics

HiRISE: Ridge NW of Nili Fossae

Ridge northwest of Nili Fossae. Beautiful Mars series.

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HiRISE: Catena on Alba Mons

Catena on Alba Mons. Beautiful Mars series.

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HiRISE: Inter-plate trough in Cerberus Palus

Inter-plate trough in Cerberus Palus. Beautiful Mars series.

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THEMIS: Syrtis Major in false color

THEMIS Image of the Day, November 24, 2016. Today’s false color image shows part of Syrtis Major Planum. The THEMIS VIS camera contains 5 filters. The data from different filters can be combined in multiple ways to create a false … Continue reading

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HiRISE: Rafted rock

This area of Amazonis Planitia to the west of the large volcano Olympus Mons was once flooded with lava. A huge eruption flowed out across the relatively flat landscape. Sometimes called “flood basalt,” the lava surface quickly cooled and formed … Continue reading

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THEMIS: Pavonis Mons

THEMIS Image of the Day, November 8, 2016. This VIS image shows part of the area where Pavonis Chasma intersects with Pavonis Fossae. It is a region of lava flows from Pavonis Mons and depressions likely formed by collapse into … Continue reading

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THEMIS: Crater & caldera on Elysium Mons

THEMIS Image of the Day, November 7, 2016. This VIS image shows two circular features. The flat floored feature at the top of the image is the summit caldera of Elysium Mons and was formed by volcanic activity. The bowl-shaped … Continue reading

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THEMIS: Lava flows over the edge of Olympus Mons

THEMIS Image of the Day, November 1, 2016. The margin of Olympus Mons consists of a cliff-like edge where elevation changes very quickly over a very small width. This edge is called Olympus Rupes. This VIS image shows part of … Continue reading

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THEMIS: Windstreak on Daedalia Planum

THEMIS Image of the Day, October 26, 2016. The “tail” behind the crater at the top of this VIS image is called a windstreak. This feature is formed by winds blowing over, in, and around the crater. Turbulence in the … Continue reading

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THEMIS: Cracks, pits, faults, & graben in the Labyrinth of Night

THEMIS Image of the Day, October 25, 2016. This VIS image shows some of the graben which form Noctis Labyrinthus. Graben are formed when pairs of faults cause the material between them to move downward, creating the linear trough. The … Continue reading

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