4281 ± 3 ~ 2750 Ma.
After the events of huge collision of previous eon, around 4281 ± 3 million years ago between latest stage of The Birth (Nativitan) to earliest stage of The Beginning (Archanizoic), The whole [PNF-404] got majorly changed. Chemicals, Waters, Skies and the first lifeform was borned.
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Unlike today, most of the part is water world, which continent has firstly appeared at late archanizoic. The heat flow was three times higher than today due to accretion, formation of metallic core & heat flow from radioactive elements that are decay. Also this geological eon has high volcanic activity, many eruptions also produce unique rocks such as komatiite and more. Some rocks such as carbonate rocks are rare than today, which we can know that the oceans are acidic than today. Typical stratum formations of archanizoic is green belts. Green Belts has unique sedimentary rocks such as metamorphic and metasedimentary rocks that contains rich-iron and magnesium and minerals such as chlorite, actinolite, amphiboles, gold, ore and more. Also green belts has their own unique felsic volcanic rocks.
The biota is two domains, both Euprokaryotes and Archobionts. Both of these organisms are known as prokaryotes, a paraphyletic term of unicellular asexually reproductive (through fission) organisms that lacks mitochondria & membrane-bound organelles including nucleus. The best examples of archanizoic life remains are Stromatolites, a unique specialized microbialites by prokaryotes such as Microcyanophytota (Photosynthetic bacterias), Self-reducing bacteria and Proteokarydota. However, Microcyanophytes led Great Oxygen crisis event happened on both oceans and atmosphere, during 2.710 to 2.676 billion years ago.
Today, somewhere on both continents, Proxima & Neoaustra has rocks that are actually remains of Archanizoic such as Granites, Diorites, Layered intrusion that are either base or superbase, Anorthosite and Monozonites known as sanukitoids. These rocks usually formed on deep water sediments such as, Mud stones, Graywackes, Volcanic sediments and Banded iron formations.
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