Sandstone Arch
by David Parker/science Photo Library
Title
Sandstone Arch
Artist
David Parker/science Photo Library
Medium
Photograph - Photograph
Description
Sandstone arch. Natural arch in eroded sandstone rock in Tassili n'Ajjer, Algeria. Tassili is a mountainous region at the centre of the Sahara. At the end of the Upper Pleistocene (10,000 years ago) the climate of this region was considerably wetter and rivers flowed across the plateau to great lakes. Fluvial processes eroded exposed sandstone outcrops resulting in the formation of natural arches and bridges. This arch is called Tikoubaine arch.
Uploaded
September 17th, 2018
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