File :-(, x, )
Anonymous
are there more like this?
>> Anonymous
     File :-(, x)
>> Anonymous
     File :-(, x)
>>219357
bigger
>> Anonymous
     File :-(, x)
Intersting. I'd never seen this feature before, so I did some reasearch.

>>The so-called Richat Structure is a geological formation in the Maur Adrar Desert in the African country of Mauritania. Although it resembles an impact crater, the Richat Structure formed when a volcanic dome hardened and gradually eroded, exposing the onion-like layers of rock. This image was acquired by Landsat 7's Enhanced Thematic Mapper plus (ETM+) sensor on January 11, 2001. This is a false-color composite image made using shortwave infrared, infrared, and green wavelengths. The image has also been sharpened using the sensor's panchromatic band. Coutesy : NASA - Earth Observatory

The arrow in the pic shows where it is in relation to Africas west coast.

Pic sauce- http://earth.esa.int/cgi-bin/satimgsql.pl?show_url=127
Maybe someone wants to dl the 57 mb version and resize for us?
>> wish
cool, heres another one from nasa with some info
http://earthobservatory.nasa.gov/Newsroom/NewImages/images.php3?img_id=9319
>> Anonymous
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>> Me
This might be off topic but does anybody have any really good high-rez pictures of rocks?
>> Anonymous
     File :-(, x)
>>219739
Of course. Who doesn't have a folder full of them?
>> Anonymous
     File :-(, x)
>> Anonymous
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>> Anonymous
Who the hell ever said 4chan wasn't educational? I learned something new about geology today!

Anon is an excellent teacher.