Friday, 29 January 2016

The Eye of the Sahara, Mauritania


Formally called the Richat shape, the attention of the Sahara is a much more suitable call. This mysterious blue eye has perplexed scientist for the reason that first space flights, when astronauts observed it searching lower back at them. space shuttles use the 50 km-extensive feature as a landmark even these days, it's so clean inside the middle of the barren Sahara wasteland. Researchers now consider it is a “symmetrical uplift”, basically an area that rose up as tough quartz even as softer rock and sand become eroded from it.
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