Can the depth-dependent characteristics of sedimentary CaCO3 preservation help constrain past pCO2?

Andy Ridgwell, University of California Riverside, Department of Earth and Planetary Sciences, Riverside, CA, United States, Markus Adloff, University of Bern, Climate and Environmental Physics (KUP), Bern, Switzerland and Sarah E. Greene, University of Birmingham, School of Geography, Earth and Environmental Sciences, Birmingham, B15, United Kingdom