Friday, October 21, 2011

Lobate Flow Features in the Northwest Hellas Rim

This image, taken by HiRISE, shows a lobate tongue on the northwest Hellas rim.

Lobate features such as these are located in the mid-latitudes (30-60 degrees), indicative of viscous flow, are reminiscent of terrestrial glaciers and have long-been interpreted as evidence for subsurface ice.

Recent ground-penetrating radar observations by SHARAD of other lobate features in this latitude belt also support the notion that these features have cores with ice.

Photo credit: NASA/JPL/University of Arizona

Note: This landscape is located somewhat to the northeast of Hellespontus Montes.

No comments: