RESEARCH POINTS TO EARTH'S FIRST BREATHS
September 27, 2007
September 27, 2007
TEMPE, Ariz., Sept. 27 -- Arizona State University issued the following press release:
Two multinational teams of scientists, including four researchers from ASU, are reporting that traces of oxygen appeared in Earth's atmosphere earlier than previously thought.
The discovery places the traces at 50 million to 100 million years before the "Great Oxidation Event." This event happened between 2.3 billion and 2.4 billion years ago, when most geoscientists th . . .
Two multinational teams of scientists, including four researchers from ASU, are reporting that traces of oxygen appeared in Earth's atmosphere earlier than previously thought.
The discovery places the traces at 50 million to 100 million years before the "Great Oxidation Event." This event happened between 2.3 billion and 2.4 billion years ago, when most geoscientists th . . .