New model links carbon-13 spike to Great Oxidation Event 2.45 billion years ago

New model links carbon-13 spike to Great Oxidation Event 2.45 billion years ago

Two University of Victoria (UVic) geologists have integrated field geology with statistical modeling to give scientists a new view of the chemical reactions happening on ocean floors billions of years ago. The revised picture shows that big changes in the carbon cycle were happening earlier than expected, and at the same time as ballooning atmospheric oxygen and global glaciation.