Richat Structure, satellite image

Richat Structure, satellite image

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Caption: Richat Structure, satellite image. North is at top. Desert sands are pale yellow/white (top left and lower right), while less sandy, rocky areas are green, and volcanic rocks are blue. The Richat Structure is an eroded volcanic dome in the deserts of Mauritania. As the volcanic dome eroded, these onion-like layers of rock were exposed. The structure is 485 metres high, and nearly 50 kilometres across. It is in the Maur Adrar Desert, in the Western Sahara. The area shown in this image is around 66 kilometres wide. The image data includes infrared wavelengths, and was obtained on 11 January 2001, by the Landsat 7 satellite.

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Keywords: 2000s, 2001, 21st century, africa, african, arid, desert, dome mountain, dry, earth observation, earth science, environment, eroded, erosion feature, from space, geographical, geography, geological, geology, hot, infrared, ir, january, land, landsat 7, maur adrar desert, mauritania, mauritanian, nature, physical geography, richat structure, rocky, sahara, saharan, sandy, satellite, satellite image, volcanic, weathered

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