Tag Archives: Acidalia Planitia

CRISM: Hydrated minerals of Cydonia Colles

Posted on December 4, 2018 by rburnham

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 →

Posted in Reports | Tagged , , , , , , , , , , , , , , , | Comments Off

THEMIS: Acidalia’s Bonestell Crater in false colors

Posted on October 9, 2018 by rburnham

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 →

Posted in Reports | Tagged , , , , , , , , , | Comments Off

HiRISE: Clays in a well-preserved impact crater in Acidalia Planitia

Posted on September 25, 2018 by rburnham

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

Posted in Reports | Tagged , , , , , , , , , | Comments Off

HiRISE: Crater gullies and fractures in Acidalia Planitia

Posted on September 4, 2018 by rburnham

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 →

Posted in Reports | Tagged , , , , , , , , | Comments Off

HiRISE: Gullies in a crater in Acidalia Planitia

Posted on August 7, 2018 by rburnham

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]

Posted in Reports | Tagged , , , , , , , , , , , | Comments Off

HiRISE: Fans and valleys

Posted on July 25, 2018 by rburnham

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 →

Posted in Reports | Tagged , , , , , , , , | Comments Off

HiRISE: Dunes next to a central peak

Posted on July 23, 2018 by rburnham

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

Posted in Reports | Tagged , , , , , , , , , , | Comments Off

THEMIS: Milankovic Crater dunes

Posted on June 4, 2018 by rburnham

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 →

Posted in Reports | Tagged , , , , , , , , , , , , , | Comments Off

THEMIS: Blast scour at Bonestell Crater

Posted on April 17, 2018 by rburnham

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 →

Posted in Reports | Tagged , , , , , , , , , , | Comments Off

HiRISE: Troughs with axial ridges in Acidalia Planitia

Posted on April 9, 2018 by rburnham

Troughs with axial ridges in Acidalia Planitia. There are large, hundreds of meters in length, troughs in Acidalia Planitia, with high axial ridges down the center. While they appear fairly bland in Mars Orbital Camera images, we can see better … Continue reading →

Posted in Reports | Tagged , , , , , , , , , , , | Comments Off