Comparative Study of δ18O Compositions Determined for Fossil Holocene Planktic Foraminifera by In Situ SIMS Measurements and Standard Gas-Source IRMS Bulk Shell Analyses

Jody Wycech, University of Wisconsin Madison, Madison, United States, Daniel Clay Kelly, University of Wisconsin Madison, Madison, WI, United States, Reinhard Kozdon, Lamont-Doherty Earth Observatory of Columbia University, Palisades, United States, Kouki Kitajima, University of Wisconsin, Madison, United States, Howard J Spero, University of California Davis, Department of Earth and Planetary Sciences, Davis, CA, United States, Ian J Orland, University of Minnesota Twin Cities, Dept. of Earth Sciences, Minneapolis, MN, United States, Noriko Kita, University of Wisconsin Madison, WiscSIMS, Dept. of Geoscience, Madison, United States and John W Valley, University of Wisconsin Madison, WiscSIMS, Dept. of Geoscience, Madison, WI, United States