Carbonate-bound phosphate and Ca isotope range as measures of cation availability and relative alkalinity

Miquela Ingalls1, Clara L Blättler2, John A Higgins3, Joshua Phelan4, John S Magyar5, John M Eiler6 and Woodward W Fischer6, (1)California Institute of Technology, Pasadena, CA, United States, (2)University of Chicago, Chicago, IL, United States, (3)Princeton University, Department of Geosciences, Princeton, NJ, United States, (4)California State University Fullerton, Fullerton, CA, United States, (5)California Institute of Technology, Pasadena, United States, (6)Caltech, Pasadena, CA, United States