Weathered desert varnish

Weathered desert varnish

E460/0570 Rights Managed

Request low-res file

530 pixels on longest edge, unwatermarked

Request/Download high-res file

Uncompressed file size: 50.0MB

Downloadable file size: 5.3MB

Price image Pricing

Please login to use the price calculator


Credit: SINCLAIR STAMMERS/SCIENCE PHOTO LIBRARY

Caption: Weathered desert varnish at the base of a sandstone pillar. Desert varnish is a coating that forms on rocks in arid environments. Rock varnish is composed of clay minerals, manganese, iron and trace elements. It forms when wind-blown particles stick to wet rocks and then react in the heat of the sun, forming an accretion on the surface of the rock. This coating then becomes enriched in manganese by biochemical processes. Here the varnish has been weathered due to the temperature extremes in the desert. Photographed in Tagrera, Tassili du Hoggar, southern Algeria.

Release details: Model release not required. Property release not required.

Keywords: accretion, accumulated, accumulation, africa, african, algeria, algerian, coating, desert varnish, feature, geological, geology, geomorphology, landform, landforms, mechanical, physical, physical geography, rock, sahara, sahara desert, sand, sandstone, shattered, tagrera, tassili du hoggar

Licence fees: A licence fee will be charged for any media (low or high resolution) used in your project.