Tag Archives: Kaiser Crater

HiRISE: Bedrock outcrops in Kaiser Crater

This enhanced-color image shows a patch of well-exposed bedrock on the floor of Kaiser Crater. The wind has stripped off the overlying soil, and created grooves and scallops in the bedrock. The narrow linear ridges are fractures that have been … Continue reading

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

THEMIS: Warm dunes glowing in Kaiser Crater

THEMIS Image of the Day, March 9, 2017. This is an infrared image of Kaiser Crater and the dune field on the crater floor. Brighter tones in the image are warmer surfaces. The basaltic dunes are dark in the visible, … Continue reading

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

HiRISE: Scars of erosion

This large crescent dune in Kaiser Crater shows the scars of many types of seasonal erosional activities. Along its downwind slope are large gullies which are active during winter, when frost drives dune material downslope, carving out channels and creating … Continue reading

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

HiRISE: Frosty alcoves on Kaiser Crater dunes

Kaiser Crater hosts a large field of sand dunes. Every winter the dunes are covered with a layer of seasonal carbon dioxide ice (dry ice). In early spring the ice begins to sublimate (going directly from solid ice to gas). … Continue reading

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

HiRISE: Glowing gullies in Kaiser Crater dunes

The giant sand dunes in Kaiser Crater experience gully erosion of the steep slip faces every year in late winter as the sun warms these slopes and seasonal carbon dioxide frost sublimates (meaning it changes from a solid to gas). … Continue reading

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

HiRISE image: active dune gullies in Kaiser Crater

Active dune gullies in Kaiser Crater. More HiRISE images.

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