Local and Global Controls on Carbon Isotope Chemostratigraphy

Over million-year timescales, the geologic cycling of carbon controls long-term climate and the oxidation of Earth''s surface. Inferences about the carbon cycle can be made from time series of carbon isotopic ratios measured from sedimentary rocks. The foundational assumption for carbon isotope chemostratigraphy is that carbon isotope values reflect dissolved inorganic carbon in a well-mixed ocean...