Tag Archives: fluvial channels

THEMIS: Auqakuh Vallis

THEMIS image of the Day, December 21, 2015. Today’s VIS image shows part of Auqakuh* Vallis. Sand dunes are visible on the floor of the channel. More THEMIS Images of the Day by geological topic. (* aw-KWA-kuh)

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

THEMIS: Athabasca Valles

THEMIS Image of the Day, December 18, 2015. Today’s VIS image shows a portion of Athabasca Valles. The channel has eroded some of the ejecta around the unnamed crater in the upper part of the image. More THEMIS Images of … Continue reading

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

THEMIS: Huo-Hsing Vallis

THEMIS Image of the Day, December 8, 2015. This VIS image shows a portion of Huo-Hsing Vallis, located near the northern margin of Terra Sabaea. More THEMIS Images of the Day by geological topic.

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

HiRISE: Channel networks around a crater

Channel networks around a crater in Arabia Terra. Beautiful Mars series.

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

THEMIS: Auqakuh Vallis

THEMIS Image of the Day, November 10, 2015. Today’s VIS image shows a portion of Auqakuh Vallis, which dissects the northern margin of Terra Sabaea. More THEMIS Images of the Day by geological topic.

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

HiRISE: Small channels & rocky patch in Cydonia

The southern section of this image is dominated by both a series of craters and the remnants of channels that may be from a past fluvial system. The paleochannel system has wind-blown bedforms in its interior, with crests oriented approximately … Continue reading

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

HiRISE: Fine-branched ridges

This image shows numerous branching ridges with various degrees of sinuosity. These branching forms resemble tributaries funneling and draining into larger channel trunks towards the upper portion of the scene. The raised relief of these branching ridges suggests that these … Continue reading

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

Gale Crater river carried pebbles tens of km as bedload on Peace Vallis alluvial fan

Rounded pebbles on Mars were transported for tens of kilometres in a river, suggests a new study published in Nature Communications [October 13, 2015]. This study makes use of a new technique that may help estimate the distance travelled by … Continue reading

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

THEMIS: Reull Vallis

THEMIS Image of the Day, August 3, 2015. Today’s VIS image shows a small section of Reull Vallis. More THEMIS Images of the Day by geological topic.

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

Valleys, deltas, and lacustrine sediment in the southwestern Melas Basin, Valles Marineris

Planetary Geomorphology Image of the Month, July 30, 2015: Joel Davis (University College, London, UK). During the last few decades, dry river valley networks and delta fan structures have been found to be increasingly common on ancient terrains on the … Continue reading

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