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The Richat Structure was originally thought to have been caused by an impact crater but there isn't enough melted rock to support that theory. So scientists still arn't sure how it formed.
Initially interpreted as a meteorite impact structure because of its high degree of circularity, it is now thought to be merely a symmetrical uplift that has been laid bare by erosion. Paleozoic quartzites form the resistant beds outlining the structure.
originally posted by: glend
a reply to: charlyv
It really doesn't matter if it was or not created by an impact as it doesn't exclude its use either way. Research Paper I was quoting from is old (1969).
originally posted by: toysforadults
a reply to: charlyv
If it is an impact crater the heating element of the impact can skew the data can it not?
originally posted by: toysforadults
a reply to: charlyv
I meant as far as dating was concerned
Good info though
originally posted by: GeauxHomeYoureDrunk
a reply to: glend
It is my belief that the Eye of the Sahara is actually the remains of an ancient caldera that possible caused an event much like we are all waiting for from Yellowstone. I haven't really researched it, it's just a gut feeling I have. Take it or leave it, doesn't bother me either way.
Molten rock pushed up toward the surface but didn't make it all the way, creating a dome of rock layers, like a very large pimple. This also created fault lines circling and crossing the Eye. The molten rock also dissolved limestone near the center of the Eye, which collapsed to form a special type of rock called breccia. A little after 100 million years ago, the Eye erupted violently. That collapsed the bubble partway, and erosion did the rest of the work to create the Eye of the Sahara that we know today. The rings are made of different types of rock that erode at different speeds. The paler circle near the center of the Eye is volcanic rock created during that explosion.
How much you want to bet the hidden hands knows the truth?