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 Wycech1, Daniel Clay Kelly1, Reinhard Kozdon2, Kouki Kitajima3, Howard J Spero4, Ian J Orland5, Noriko Kita6 and John W Valley7, (1)University of Wisconsin Madison, Madison, WI, United States, (2)Lamont-Doherty Earth Observatory of Columbia University, Palisades, United States, (3)University of Wisconsin, Madison, United States, (4)University of California Davis, Department of Earth and Planetary Sciences, Davis, CA, United States, (5)University of Minnesota Twin Cities, Dept. of Earth Sciences, Minneapolis, MN, United States, (6)University of Wisconsin Madison, WiscSIMS, Dept. of Geoscience, Madison, United States, (7)University of Wisconsin Madison, WiscSIMS, Dept. of Geoscience, Madison, WI, United States