Tag Archives: tectonics

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: 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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THEMIS: Nili Patera fractures and dunes in false color

THEMIS Image of the Day, October 27, 2017. This false color image covers the region from Nili Patera at the top of the frame to the dunes near Meroe Patera (which is off the bottom of the image). High resolution … Continue reading

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THEMIS: Garden of Rubble in Coprates Chasma

THEMIS Image of the Day, September 29, 2017. This image is located in central Coprates Chasma. The floor of the chasma is covered by a complex deposit of material. This chaotic surface differs from most of the floor of the … Continue reading

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THEMIS: Swirled dunes at foot of Coprates canyon wall

THEMIS Image of the Day, September 28, 2017. This image is located in eastern Coprates Chasma. The image shows a relatively smooth floor, with a group of sand dune forms located against the wall of the chasma (bottom of image). … Continue reading

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THEMIS: Rough floor in Coprates Chasma

THEMIS Image of the Day, September 27, 2017. This image is located in central Coprates Chasma. The image shows multiple landslide features, which form the bright lobed shaped deposits at the bottom of the canyon cliff face (top of image). … Continue reading

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THEMIS: Badlands in Coprates Chasma

THEMIS Image of the Day, September 26, 2017. This image is located on the eastern side of Coprates Chasma, near Capri Chasma. The image shows multiple landslide features, which form lobed shaped deposits at the bottom of the canyon cliff … Continue reading

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THEMIS: Landslides and dunes in Coprates Chasma

THEMIS Image of the Day, September 25, 2017. This image is located on the eastern side of Coprates Chasma, near Capri Chasma. The image shows multiple landslide features, which form lobed shaped deposits at the bottom of the canyon cliff … Continue reading

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THEMIS: Ring-fault tectonics at Ascraeus Mons caldera

THEMIS Image of the Day, September 6, 2017. This image shows part of the complex caldera at the summit of the volcano. Calderas are found at the tops of volcanoes and are the source region for magma that rises from … Continue reading

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THEMIS: Pit craters on Ascraeus Mons

THEMIS Image of the Day, September 4, 2017. This image shows a collapse feature on the southeastern flank of the volcano. The circular/scalloped margin of the collapse is typical for ceiling collapse into a lava tube. However, the potential lava … Continue reading

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