[TexasGator]

“Early Oxygen Rich Atmosphere? Origins of Sulfur in Rocks Tells Early Oxygen Story, Science Daily, April 2009. “

Uh, this dates to 2.4 billion years ago. This is after the formation of the oxygen producing organsims.

[Mr. Lucky]

Look, there may be many viable scientific theories as to the origin of life, but "primordial soup" spontaneous generation isn't one of them.

"...the redux state of the Earth's mantle has not changed in the past 3.8 Gyr." Zahnle, Schaefer, Fegley, "Earth's Earliest Atmosphere", Cold Spring Harbor Perspectives in Biology" (2010).