The underlying hypothesis held by Oparin and Haldane was that conditions on the primeval Earth favored chemical reactions that synthesized organic compounds from inorganic precursors.

You know, like computer models of primeval Earth?

So, we have a speculative picture of mineral crystals on the primeval Earth showing some of the properties of replication, multiplication, heredity and mutation that would have been necessary in order for a form of cumulative selection to get started.

It's like the primeval Earth.

-If you were to follow humanity's genetic trail back through the millennia, you'd find primitive creatures fumbling for a foothold on a primeval Earth.

Could the atmosphere of the primeval Earth have been similar?

As the surface of the primeval Earth cooled, carbon will have been one of the first elements to solidify.