Tag Archives: Acidalia Planitia

HiRISE: A variety of surfaces and terrains

A variety of surfaces and terrains. This intriguing extraterrestrial terrain is located in the far northeast part of Acidalia Planitia, located between the Tharsis volcanic province and Arabia Terra to the north of Valles Marineris. HiRISE Picture of the Day … Continue reading

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CRISM: Hydrated minerals of Cydonia Colles

In this scene we observe the knobs within the northern lowlands (Acidalia Planitia) that are Fe/Mg phyllosilicate-bearing (pink-blue) and small, patchy exposures of hydrated silica (green) surrounding the knobs. Previously, phyllosilicates have only been found within impact craters in the … Continue reading

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THEMIS: Acidalia’s Bonestell Crater in false colors

THEMIS Image of the Day, October 9, 2018. This VIS image shows Bonestell Crater located in Acidalia Planitia. 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: Clays in a well-preserved impact crater in Acidalia Planitia

Clays in a well-preserved impact crater in Acidalia Planitia. Beautiful Mars series. [More at links]

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HiRISE: Crater gullies and fractures in Acidalia Planitia

This image shows the gullied western slopes of an unnamed crater (about 10 kilometers wide) in Acidalia Planitia. These slopes have gone through a complicated history of gully erosion of the bedrock layers in the upper section, followed by the … Continue reading

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HiRISE: Gullies in a crater in Acidalia Planitia

Gullies in a crater in Acidalia Planitia. The objective of this observation is to examine gullies on the north wall of a crater. The slope looks quite steep and the gullies are fairly straight. Beautiful Mars series. [More at links]

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HiRISE: Fans and valleys

An impact crater approximately 23 kilometers across is home to fan-shaped deposits that extend from the rim and sit on the interior crater floor. Thick beds with varying tone are exposed along the edge of the fan. Shallow valleys that … Continue reading

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HiRISE: Dunes next to a central peak

The dunes, they are coming for you! These dunes are next to a central peak in a crater. Beautiful Mars series. [More at links]

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THEMIS: Milankovic Crater dunes

THEMIS Image of the Day, June 4, 2018. Milankovic Crater is located in central Arcadia Planitia. This VIS image shows small dark sand dunes on the crater floor, and larger dunes within the central crater peak/pit feature. With a diameter … Continue reading

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THEMIS: Blast scour at Bonestell Crater

THEMIS Image of the Day, April 17, 2018. Bonestell Crater is a relatively young crater located in Acidalia Planitia. The grooved surface of the ejecta blanket is evident in this VIS image. The grooves were likely eroded by the outward … Continue reading

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