Tag Archives: gullies

HiRISE: Colorful equatorial gullies in Krupac Crater

Although large gullies (ravines) are concentrated at higher latitudes, there are gullies on steep slopes in equatorial regions. An enhanced-color closeup shows part of the rim and inner slope of Krupac Crater located just 7.8 degrees south of the equator. … Continue reading

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

THEMIS: Asimov Crater’s sedimentary infill

THEMIS Image of the Day, May 1, 2017. Today’s false color image shows more of Asimov Crater. Gullies along the crater rim are visible in this image. Where did the crater’s infill come from?  What is removing it? The THEMIS … Continue reading

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

HiRISE: Gullies with color anomalies

This is an oblique view of gully deposits from the steep slope of an impact crater. The deposits with anomalous (bluish) colors may reveal very recent activity, not yet homogenized by dust deposition, or there may be sand preferentially trapped … Continue reading

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

HiRISE: How old are martian gullies?

Gullies eroded into the steep inner slope of an impact crater at this location appear perfectly pristine. Although at first glance it may appear that there are craters superimposed on the gully fans, inspection of HiRISE stereo coverage shows that … Continue reading

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

HiRISE: A winter’s view of a gullied crater

This is the location with the most impressive known gully activity in the Northern hemisphere. Gullies are active in the winter due to carbon dioxide frost, but northern winters are shorter and warmer than southern winters, so there is less … Continue reading

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

HiRISE: Gully monitoring

Gully monitoring. Beautiful Mars series.

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

THEMIS: Two impacts in one at Gasa Crater

THEMIS Image of the Day, April 7, 2017. The small crater on the floor of the larger crater is called Gasa Crater. Gullies dissect the rims of both craters. These craters are located in Eridania Planitia. As most impacts from … Continue reading

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

HiRISE: Deeply incised gullies and arcuate ridges

Deeply incised gullies and arcuate ridges. Beautiful Mars series.

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

HiRISE: Gully monitoring in Kamnik Crater

Gully monitoring in Kamnik Crater. Beautiful Mars series.

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

THEMIS: Gullies eroding rim of Noachis Terra crater

THEMIS Image of the Day, April 3, 2017. Many gullies dissect the inner rim of this unnamed crater in Noachis Terra. More THEMIS Images of the Day by geological topic.

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