Tag Archives: chaotic terrain

HiRISE: Multi-layered story

A story in layers. Our objective is to examine some very nicely exposed layers in a mesa wall in Aureum Chaos. As the name “chaos” suggests, this terrain is characterized by randomly oriented, large-scale mesas and knobs that are heavily … Continue reading

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THEMIS: Unusual feature in Arabia Terra crater

THEMIS Image of the Day, July 5, 2019. Today’s VIS image shows a complex block of material located on the floor of an unnamed crater in Arabia Terra. The feature is offset from the center of the circular depression and … Continue reading

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HRSC: A chaos found only on Mars

The cracked, uneven, jumbled landscape seen in this image from ESA’s Mars Express forms an intriguing type of terrain that cannot be found on Earth: chaotic terrain. The feature visible here, Aurorae Chaos, is located in the ancient and equatorial … Continue reading

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Tectonic evolution of Juventae Chasma

[Editor’s note: From a paper by Ranjan Sarkar and four co-authors recently published in Icarus.] Tectonic Evolution of Juventae Chasma, Mars, and the Deformational and Depositional Structural Attributes of the Four Major Light-toned Rock Exposures Therein • Juventae Chasma is … Continue reading

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HiRISE: Incipient chaos

Incipient chaos. The objective of this observation is to examine a possible early stage of chaos formation. The ground seems to be collapsing, forming mesas and a large channel that connects with Shalbatana Vallis. HiRISE Picture of the Day archive. … Continue reading

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HiRISE: Blocks and troughs

Blocks and troughs. This region in Margaritifer Chaos is located in a system of finger-like rifts and cracked surface stretching south from what appear to be three impact craters. The interaction/relation between these valleys and their neighboring craters could be … Continue reading

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THEMIS: Aram Chaos in false color

THEMIS Image of the Day, April 8, 2019. Today’s false-color VIS image is located in Aram Chaos. Aram Chaos was initially formed by a large impact. Over time the crater interior was modified by several different processes, including liquid water. … Continue reading

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HiRISE: We found geology in a chaotic place

We found geology in a chaotic place. The terrain here lives up to its description as “chaotic:” we see small hills, mesas, buttes and valleys. This area is called Oxia Palus, and its debris likely came from Ravi Vallis, which … Continue reading

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HiRISE: Chryse Chaos

Chryse Chaos. In planetary nomenclature, the term chaos means “distinctive area of broken terrain.” The general morphology of chaos is steep-sided mesas in close proximity. The interconnected channel forms erode, and mesas are created by erosion of the bounding channels. Beautiful … Continue reading

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THEMIS: Channel flow in Sacra Fossae

THEMIS Image of the Day, August 16, 2018. The right-angle intersection of the depressions in this VIS image is one of the graben that form Sacra Fossae. The fossae are located on Sacra Mensa, near the beginning of Kasei Valles. … Continue reading

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