Posted on 05/19/2013 6:05:54 AM PDT by SunkenCiv
Explanation: What on Earth is that? The Richat Structure in the Sahara Desert of Mauritania is easily visible from space because it is nearly 50 kilometers across. Once thought to be an impact crater, the Richat Structure's flat middle and lack of shock-altered rock indicates otherwise. The possibility that the Richat Structure was formed by a volcanic eruption also seems improbable because of the lack of a dome of igneous or volcanic rock. Rather, the layered sedimentary rock of the Richat structure is now thought by many to have been caused by uplifted rock sculpted by erosion. The above image was captured by the ASTER instruments onboard the orbiting orbiting Terra satellite. Why the Richat Structure is nearly circular remains a mystery.
(Excerpt) Read more at 129.164.179.22 ...
Hey, have you ever gotten a really good look at most of us? ;’)
Looks like the giant drain Africa has been circling...
Thank you for the one-click-instead-of-two to access the larger version of the image. That’s actually quite beautiful, and its miniature would make a lovely pendant.
Also, your opinions about its formation and composition make a lot of sense. I wonder why NASA didn’t figure that out?
Looks like an ancient strip mine.
could it be over a salt dome? Or a cold pluton?
3280.84 feet
http://www.freerepublic.com/focus/chat/706381/posts
http://www.freerepublic.com/focus/chat/1595687/posts?page=9#9
correction to the URL:
https://apod.nasa.gov/apod/ap021028.html
images:
https://www.google.com/search?q=Richat+Structure
one of the catastrophist explanations:
https://www.thunderbolts.info/tpod/2005/arch05/050407richat.htm
There’s a bit of an undercurrent of claims that the 100 million year old natural formation was Plato’s Atlantis:
https://www.youtube.com/watch?v=oDoM4BmoDQM
https://www.youtube.com/watch?v=hWUBjklUhHo
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