Possible Impact Structure

The Ibn-Batutah feature is a circular structure centered on 21°34′10″ N and 20°50′15″ E and located in the prefecture of the Hamadat Ibn-Batutah plateau, southeastern Libya. It is a singular geological structure formed in Nubian Sandstone of most likely early Cretaceous age. Remote sensing investigations based on Landsat ETM+, dual-band and dual-polarization radar , and SRTM data reveal a morphological resemblance of the Ibn-Batutah structure to other confirmed terrestrial simple impact structures. The structure is in the form of a circular basin 2.5 km in diameter and ~ 25 m deep, surrounded by a low-relief rim that rises to within 5 m of the surrounding terrains over much of its extent.

The Kebira Crater is the name proposed for a circular topographic feature found in the Sahara desert. The feature lies mainly in Libya with the eastern edge protruding into Egypt. In this image the proposed crater boarder is marked with a blue line, bare ground is yellow, brown, orange and tan, and rock is black and dark blue.