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2023-09-17 18:56:44

L 0 K 1 on Nostr: Why is it that the Richat Structure is the only such example of its kind on our whole ...

Why is it that the Richat Structure is the only such example of its kind on our whole planet?

https://en.wikipedia.org/wiki/Richat_Structure

The article tries to say that it's a "highly eroded" geological dome.

https://en.wikipedia.org/wiki/Dome_(geology)

There are several other examples of other types of domes, but not one that is formed out of a volcano.

Not. Even. One. Other

Doesn't that seem a little weird?

Consider the scenario. We have a volcano. For some millennia, it spews basalt.

Then a bloop of more silicaceous stuff appears, and it spews a bunch of hard orange terracotta stuff. Ok, it's mostly iron, I'm just describing it so you can understand it. Terracotta is iron rich aluminosilicates. Red sand.

Then later, it starts spewing some more basalt. (black, this contains a lot of black iron oxides, as opposed to the yellow and red of previous phases).

Again, some terracotta.

Ok, so what next? Oh yes, this looks like :Cobalt. Ok, it starts spewing a bit of cobalt.

Then suddenly it's cobalt and nickel.

Looking at the colours, there seems no other logic to how this thing could have formed. I'm seriously wondering how in the hell such a thing could happen at all. It's not just unlikely, it's cracking a 128 bit password by brute force with all the computers in the world for a million years unlikely.

Firstly, our planet's core does not contain very much nickel and cobalt. Just look at the geology of almost every volcanic region on the planet, they are everywhere.

Most nickel found on earth is associated with meteorites. The metal was first discovered by the Chinese. It, cobalt and iron are the main "ferromagnetic" metals. That is, they can hold a magnetic alignment permanently.
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The structure is clearly not natural, at least, not the flattening part. The materials are not uniformly dense or uniformly chemically, or mechanically soft.

It may well be that if you took an old volcano, and cut off the entire top of it, you could get something like this. But you couldn't do that with modern technology without an INCREDIBLE amount of energy and worn cutting devices. Or gigatons of TNT, used in thousands and thousands of careful explosions.
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