Geological and Biological Processes at the Zaonega Formation 2 Billion Years Ago

According to a recent study led by Caltech researchers, the interplay of local geological and biological processes illustrated in the video can fully account for the unusual carbon-isotope signal recorded in rocks of the Zaonega Formation, which has often been interpreted as evidence of a global carbon cycle change.
Learn more at https://www.caltech.edu/about/news/new-info-from-ancient-rocks-upends-popular-theory.