Periodic Reporting for period 4 - OOID (The Ocean's Oxygen Isotopes Deciphered: Combining Observations, Experiments and Models)

The geologic history of the oxygen isotopic composition of seawater has been a topic of intense study and debate for more than 60 years. An increase of 1-2% in the abundance of the heavy isotope of oxygen, 18O, in marine sedimentary rocks over the past ~3.5 billion years has...