News From the Field
Oxygen-free Early Oceans Likely Delayed Rise of Life on Planet
January 10, 2011
University of California, Riverside, geologists have found chemical evidence in 2.6 billion-year-old rocks that indicates that Earth's ancient oceans were oxygen-free and contained abundant hydrogen sulfide in some areas. The researchers are the first to show that ample hydrogen sulfide in the ocean was possible this early in Earth's history.
University of California, Riverside
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