Tag Archives: sand dunes

HiRISE: Frosted dunes

Posted on May 20, 2016 by rburnham

Sand dunes cover much of this terrain, which has large boulders lying on flat areas between the dunes. It is now late winter here in the Southern hemisphere, and these dunes are just getting enough sunlight to start defrosting their … Continue reading →

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

THEMIS: Hyperboreae Undae

Posted on May 17, 2016 by rburnham

THEMIS Image of the Day, May 17, 2016. Several dunes fields are found near the north polar cap. Today’s VIS image shows part of Hyperboreae Undae, which is located between Escorial Crater and the margin of Chasma Boreale. More THEMIS … Continue reading →

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

HiRISE: Dunes and bedrock

Posted on April 25, 2016 by rburnham

Hush, hush, sweet bedrock. Beautiful Mars series

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

THEMIS: Sea of sand in Siton Undae

Posted on April 20, 2016 by rburnham

THEMIS Image of the Day, April 20, 2016. Today’s VIS image shows part of Siton Undae, a dune field located near Escorial Crater and the north polar cap. More THEMIS Images of the Day by geological topic.

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

THEMIS: Crater dunes

Posted on April 18, 2016 by rburnham

THEMIS Image of the Day, April 18, 2016. Today’s VIS image shows a sand sheet with surface dune forms located on the floor of an unnamed crater in Vastitas Borealis. More THEMIS Images of the Day by geological topic.

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

THEMIS: Dark dunes in Isidis Planitia crater

Posted on April 14, 2016 by rburnham

THEMIS Image of the Day, April 14, 2016. Small, dark dunes are located on the floor of this unnamed crater in Isidis Planitia. More THEMIS Images of the Day by geological topic.  

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

THEMIS: More Olympia Undae

Posted on March 28, 2016 by rburnham

THEMIS Image of the Day, March 28, 2016. The arc shaped feature at the bottom of this VIS image is the remaining rim of a crater. The dunes of Olympia Undae have surrounded the rim and small individual dunes are … Continue reading →

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

THEMIS: Olympia Undae

Posted on March 28, 2016 by rburnham

THEMIS Image of the Day, March 25, 2016. This VIS image shows a small portion of Olympia Undae, a large dune field located near the north polar cap. More THEMIS Images of the Day by geological topic.

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

THEMIS: Olympia Undae

Posted on March 23, 2016 by rburnham

THEMIS Image of the Day, March 23, 2016. This VIS image shows a small portion of Olympia Undae, an extensive dune field near the north polar cap. This image was collected during summer, so the dunes are free of surface … Continue reading →

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

Curiosity: Ancient dune field, now rock, points to different past climate

Posted on March 22, 2016 by rburnham

Sol 1288, March 21, 2016. Curiosity is driving across the Naukluft Plateau. This is part of the Stimson Formation, a flat-lying, thin-layered sandstone with crossbedded features that indicate it was once a field of dunes. (Click image to enlarge.) According … Continue reading →

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