Overview
Syllabus
What & when was the Precambrian?
Hadean Eon: Earth formation
Layer formation during the Hadean
Atmosphere formation & outgassing during the Hadean
Continental vs. oceanic crust formation during the Hadean
Archean Eon: plate tectonic rate & crustal accretion
Laurentia formation during the Archean
Did life evolve during the Archean?
First photosynthesizing organisms oxygen rise!
Banded iron formations BIFs
Proterozoic Eon: Great Oxidation Event GOE
GOE extinction O2 was toxic!
Ediacaran fauna
Cambrian explosion delay mystery?
Precambrian supercontinents
Snowball Earth Proterozoic ice ages
Taught by
GEO GIRL