Tag Archives: Tharsis

HRSC: Fracture swarms on Mars

These striking features on Mars were caused by the planet’s crust stretching apart in response to ancient volcanic activity. The fractures in the Sirenum Fossae region in the southern hemisphere were imaged by ESA’s Mars Express in March. They extend … Continue reading

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THEMIS: Morning sunlight on Pavonis Mons caldera

THEMIS Image of the Day, November 10, 2017. This image shows the central part of the smaller summit caldera on Pavonis Mons. On the top side of the caldera is a complex region of fault related collapse of the wall … Continue reading

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THEMIS: High-volume lava tube, Pavonis Mons

THEMIS Image of the Day, November 9, 2017. This image shows the southern flank of Pavonis Mons. The large sinuous channel at the bottom of the image is located at the uppermost part of the volcano where collapse features are … Continue reading

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THEMIS: Faults weaken summit caldera wall on Pavonis Mons

THEMIS Image of the Day, November 8, 2017. This image shows the western part of the smaller summit caldera on Pavonis Mons. On this side of the caldera is a complex region of fault related collapse of the wall of … Continue reading

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THEMIS: Summit caldera of Pavonis Mons

THEMIS Image of the Day, November 7, 2017. This image shows part of the smaller summit caldera on Pavonis Mons. This caldera is approximately 5km deep. Near the bottom of the image is a region where part of the caldera … Continue reading

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THEMIS: Lava tube takes a sharp turn

THEMIS Image of the Day, November 6, 2017. This image shows part of the eastern flank of Pavonis Mons. Surface lava flows run down hill from the upper left of the image towards the bottom right. Perpendicular to that trend … Continue reading

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THEMIS: Collapsed lava tubes on Pavonis Mons

THEMIS Image of the Day, November 3, 2017. This image shows part of the southeastern flank of Pavonis Mons. Surface lava flows run down hill from the top left of the image to the bottom right. Perpendicular to that trend … Continue reading

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THEMIS: Summit caldera edge, Pavonis Mons

THEMIS Image of the Day, November 2, 2017. This image shows part of the two summit calderas of Pavonis Mons. The surface in the majority of the image is the floor of the larger caldera. The smaller caldera occupies the … Continue reading

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THEMIS: Collapse pits and lava tubes

THEMIS Image of the Day, November 1, 2017. This image shows part of the southern flank of Pavonis Mons. Several faults run from the left to the right side of the image. Lava flows, and the lava collapse features at … Continue reading

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THEMIS: Fractures on Pavonis Mons’ flank

THEMIS Image of the Day, October 31, 2017. This image shows part of the western flank of Pavonis Mons. The linear features are faults. Faulting usually includes change of elevation, where blocks of material slide down the fault. Paired faults … Continue reading

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