Oxygen - A Four Billion Year History
Donald E. Canfield, Central 551.5112 C222o 2014
Skimmed, seeking Canfield Ocean description
.p117 GOE Great Oxygen Event ended BIF Banded Iron Formations ...
- Until a lot of buried carbon oxidized, drawing oxygen back down
- sulfates from oxygen weathering of sulfide minerals, iron sulfiide sediments instead
.p119 black shales deposited in sulfidic waters, evidence in Gunflint-Rove fFormations