No one can give an unambiguous answer: how could ancient builders process such high-tech strong rocks of stone? There are those who are “for” the tools of the Gods according to A. Sklyarov, there are “for” concrete technologies (geopolymer compositions). But it seems to me that there is another intermediate version, when both principles of creating and processing the breed were used.
This is a sample of rock from the massif in Peru. No tool will be able to pull out a block or rock like this, leaving the inside correct corners without any sign of wire, circular or band saws. And everyone shrugs at the expense of a clear explanation. There is, however, a version of the breed softening option, and that now this recipe has been lost. Sampling a rock or a finished block of soft rock explains almost everything here.
But for some reason no one assumes that there was a lot of such material for forming blocks in ancient times and it lay on every corner, like we now have clay.
Let's assume that's the case. But then where did it come from on the surface? Maybe these are outcrops of soft rock (a kind of mud volcano). Maybe this mass was kneaded artificially and left to ripen in a huge enclosure (formwork). Have you taken out a few blocks, lost time and the mass has hardened?
Or is it clays that were mined from underground, but they differed in composition from our clays formed during the flood. Could turn to stone in the air?
I will write about the previously announced version that these masses are a product of processing from the extraction of rare earth metals from water bodies.
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Maybe all these options were relevant at the time. And there is even confirmation, for example, about making slabs for dolmens.
Or this example of fossilized grazing material: In Malta and Absheron (Azerbaijan).
But back to Peru. They took a mass and molded such a wall: Here you can see that there was a certain flat pillar, a support that either supported the wall in balance until the blocks were completely solidified, or scaffolding and formwork rested on it, which did not allow the mass from the blocks to spread out. When removed, a trace of this support was imprinted. To conclude that someone has made such a shallow groove for something is somehow not logical.
