Tag Archives: outflow channels

THEMIS: Hrad Vallis

Posted on July 29, 2014 by rburnham

THEMIS Image of the Day, July 29, 2014. The channel in this VIS image is a portion of Hrad Vallis. More THEMIS Images of the Day by geological topic.

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THEMIS: Kasei Valles islands

Posted on June 6, 2014 by rburnham

THEMIS Image of the Day, June 6, 2014. There are several streamlined islands in this VIS image of Kasei Valles. This image is located near the region where Kasei Valles empties into Chryse Planitia. More THEMIS Images of the Day … Continue reading →

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THEMIS: Alluvial fans

Posted on April 30, 2014 by rburnham

THEMIS Image of the Day, April 30, 2014. Triangular shaped deposits at cliff edges are termed alluvial fans. Alluvial fans typically form in arid regions were water flow is limited, so deposits of material are not washed away. Formation of … Continue reading →

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Ancient flood sediments exposed in northern lowlands craters

Posted on April 29, 2014 by rburnham

A light-toned layer has been discovered exposed in the interior walls of numerous craters in the Chryse and Acidalia plains, according to a recent paper published in Geology by Mark Salvatore and Philip Christensen (both Arizona State University). The layer, … Continue reading →

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THEMIS: Kasei Valles

Posted on April 25, 2014 by rburnham

THEMIS Image of the Day, April 25, 2014. The channels, both large and small, in this image are part of Kasei Valles near its terminus in Chryse Planitia. More THEMIS Images of the Day by geological topic.

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THEMIS: Streamlined island

Posted on April 15, 2014 by rburnham

THEMIS Image of the Day, April 15, 2014. Today’s VIS image shows a streamlined island in a broad channel in Chryse Planitia. The channel is part of the outflow region of Lobo Vallis, a northern branch of Kasei Valles. More … Continue reading →

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THEMIS: Kasei Valles

Posted on March 12, 2014 by rburnham

THEMIS Image of the Day, March 12, 2014. This VIS image shows streamlined islands within part of Kasei Valles. More THEMIS Images of the Day by geological topic.

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Subsurface radar profiles Marte Vallis outflow channel in 3D

Posted on March 14, 2013 by rburnham

Ground-penetrating radar on NASA’s Mars Reconnaissance Orbiter (MRO) reveals buried channels that show floods of water from Cerberus Fossae eroded Marte Vallis in two distinct stages, and they did so to a much greater extent than is visible today. The … Continue reading →

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Megaflood carved a valley in a week

Posted on March 8, 2013 by rburnham

Morella Crater is an ancient impact scar 78 kilometers (49 miles) across that sits barely 5 km (3 mi) away from the southern edge of the large canyon, Ganges Chasma. Roughly 3 billion years ago,  groundwater filled Morella Crater with … Continue reading →

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Hadriaca Patera’s heavy footprint

Posted on August 18, 2011 by rburnham

On the northeast edge of the giant Hellas impact basin, the thick stack of lava in the volcano Hadriaca Patera weighed so much it depressed the Martian surface immediately around it. This bent and cracked the crust on the volcano’s … Continue reading →

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