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Goldblatt, C., et al. "The Eons of Chaos and Hades." Solid Earth Discussions 1.1 (2009): 47-53.

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Acasta gneiss. The oldest rock on earth ~4.2 Ga
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Hi there. I wanna know about this community. I'm an student of Earth Sciences which loves everything related before the Cambrian. So, I would like to know if I can share (and what kind of) info about Proterozoic, Archean, Hadean and Chaotian Eons. Thanks and have a wonderful day.

Geoscientists have discovered that the earths core formed under more oxidized conditions. They did it through laser experiments. I thought for a long time that the early earth had little oxygen.
 
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