noaa-ocean-20508 Micron-scale Intrashell Oxygen Isotope Data in the Cultured Planktic Foraminifer O. universa Vetter, L.; Kozdon, R.; Mora, C.I.; Eggins, S.M.; Valley, J.W.; Hönisch, B.; Spero, H.J. Micron-scale Intrashell Oxygen Isotope Data in the Cultured Planktic Foraminifer O. universa 2016-09-16 NCDC-Paleoclimatology ONLINE Files Pending https://www.ncdc.noaa.gov/paleo/study/20508 Investigator L. Vetter Investigator R. Kozdon Investigator C.I. Mora Investigator S.M. Eggins Investigator J.W. Valley Investigator B. Hönisch Investigator H.J. Spero earth science paleoclimate paleoceanography notes,null,null,null,null,paleoceanography,null,null,C,individual foraminifera specimen earth science paleoclimate paleoceanography notes,null,null,null,null,paleoceanography,null,null,C,individual spot measurements of delta 18O in specimens earth science paleoclimate paleoceanography delta 18O,Orbulina universa,two standard deviations lower bound,per mil VPDB,null,paleoceanography,null,secondary ion mass spectrometry,N,null earth science paleoclimate paleoceanography notes,null,null,null,null,paleoceanography,null,null,N,Distance of the center of a 3 µm spot from the inner shell surface of an individual foraminifer specimen earth science paleoclimate paleoceanography delta 18O,Orbulina universa,null,per mil VPDB,null,paleoceanography,null,secondary ion mass spectrometry,N,in situ measurements of 3 µm domains within calcite shell earth science paleoclimate paleoceanography delta 18O,Orbulina universa,two standard deviations upper bound,per mil VPDB,null,paleoceanography,null,secondary ion mass spectrometry,N,null earth science paleoclimate paleocean oxygen isotopes geoscientificInformation Complete 33.26 33.26 118.29 118.29 0 0 Ocean Pacific Ocean Eastern Pacific Ocean Santa Catalina Island>LATITUDE 33.26>LONGITUDE 118.29 None Please cite original publication, online resource, dataset and publication DOIs (where available), and date accessed when using downloaded data. If there is no publication information, please cite investigator, title, online resource, and date accessed. The appearance of external links associated with a dataset does not constitute endorsement by the Department of Commerce/National Oceanic and Atmospheric Administration of external Web sites or the information, products or services contained therein. For other than authorized activities, the Department of Commerce/NOAA does not exercise any editorial control over the information you may find at these locations. These links are provided consistent with the stated purpose of this Department of Commerce/NOAA Web site. English DOC/NOAA/NESDIS/NCEI National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce https://www.ncdc.noaa.gov/data-access/paleoclimatology-data DATA Center Contact Bruce Bauer bruce.a.bauer@noaa.gov paleo@noaa.gov 303-497-6280 303-497-6513

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Boulder CO 80305-3328 USA online ASCII Vetter, L., R. Kozdon, C.I. Mora, S.M. Eggins, J.W. Valley, B. Hönisch, and H.J. Spero 2013 Geochimica et Cosmochimica Acta 107 267-278 10.1016/j.gca.2012.12.046

In this study, we show that the rate of shell precipitation in the extant planktic foraminifer Orbulina universa is sufficiently rapid that 12 h calcification periods in 18O-labeled seawater can be resolved and accurately measured using Secondary Ion Mass Spectrometry (SIMS) for in situ d18O analyses. Calcifying O. universa held at constant temperature (22°C) were transferred every 12 h between ambient seawater (d18Ow = -0.4‰ VSMOW) and seawater with enriched barium and d18Ow = +18.6‰ VSMOW, to produce geochemically distinct layers of calcite, separated by calcite precipitated with an ambient geochemical signature. We quantify the position of the Ba-labeled calcite in the shell wall of O. universa via laser ablation ICP-MS depth profiling of trace element ratios, and then measure intrashell d18Ocalcite in the same shells using SIMS with a 3 µm spot and an average precision of 0.6‰ (±2 SD). Measured d18Ocalcite values in O. universa shell layers are within ±1.1‰ of predicted d18Ocalcite values. Elemental and oxygen isotope data show that LA-ICP-MS and SIMS measurements can be cross-correlated within the spatial resolution of the two analytical techniques, and that d18Ocalcite and elemental tracers appear to be precipitated synchronously with no measurable spatial offsets. These results demonstrate the capability of SIMS to resolve daily growth increments in foraminifer shells, and highlight its potential for paleoceanographic and biomineralization applications on microfossils.

GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/vetter2013/vetter2013.txt Formatted Text File; Cultured O. universa Data USA/NOAA DIF Version 9.8.4 2018-12-11 2018-12-11