# Micron-scale Intrashell Oxygen Isotope Data in the Cultured Planktic Foraminifer O. universa #----------------------------------------------------------------------- # World Data Center for Paleoclimatology, Boulder # and # NOAA Paleoclimatology Program #----------------------------------------------------------------------- # NOTE: Please cite original publication, online resource and date accessed when using this data. # If there is no publication information, please cite Investigator, title, online resource and date accessed. # # Description/Documentation lines begin with # # Data lines have no # # # Online_Resource: https://www.ncdc.noaa.gov/paleo/study/ # Online_Resource: http://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/by_contributor/vetter2013/vetter2013.txt # # Archive: Paleoceanography # # Parameter_Keywords: oxygen isotopes, trace metals in carbonates, geochemistry #--------------------------------------- # Contribution_Date # Date: 2016-09-16 #--------------------------------------- # Title # Study_Name: Micron-scale Intrashell Oxygen Isotope Data in the Cultured Planktic Foraminifer O. universa #--------------------------------------- # Investigators # Investigators: Vetter, Lael; Kozdon, Reinhard; Mora, Claudia; Eggins, Stephen; Valley, John; Hönisch, Bärbel; and Spero, Howard #--------------------------------------- # Description and Notes # Description: #--------------------------------------- # Publication # Authors: Vetter, L., R. Kozdon, C.I. Mora, S.M. Eggins, J.W. Valley, B. Hönisch, and H.J. Spero # Published_Date_or_Year: 2013 # Published_Title: Micron-scale intrashell oxygen isotope variation in cultured planktic foraminifers # Journal_Name: Geochimica et Cosmochimica Acta # Volume: 107 # Edition: # Issue: # Pages: 267-278 # Report Number: # DOI: 10.1016/j.gca.2012.12.046 # Online_Resource: # Full_Citation: # Abstract: 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. #--------------------------------------- # Funding_Agency # Funding_Agency_Name: National Science Foundation # Grant: OCE-0550703, OCE-0751764 #--------------------------------------- # Funding_Agency # Funding_Agency_Name: Los Alamos National Laboratory # Grant: IGPP:09-RFP-008 #--------------------------------------- # Site Information # Site_Name: Santa Catalina Island # Location: Eastern Pacific Ocean # Country: United States of America # Northernmost_Latitude: 33.26 # Southernmost_Latitude: 33.26 # Easternmost_Longitude: 118.29 # Westernmost_Longitude: 118.29 # Elevation: 0 #--------------------------------------- # Data_Collection # Collection_Name: Wrigley d18O Vetter13 # First_Year: # Last_Year: # Time_Unit: # Core_Length: # Notes: Samples collected from the Southern California Bight in July and August of 2008 and cultured at the Wrigley Marine Science Center, Santa Catalina Island, CA #--------------------------------------- # Chronology_Information # Chronology: #--------------------------------------- # Variables # Data variables follow that are preceded by "##" in columns one and two. # Variables list, one per line, shortname-tab-longname components (9 components: what, material, error, units, seasonality, archive, detail, method, C or N for Character or Numeric data) ## SpecimenID identifier,individual foraminifera specimen,,n/a,,Paleoceanography,,,C ## SpotID identifier,individual spot measurements of d18O in specimens,,n/a,,Paleoceanography,,,C ## Dist_mm Distance,,,mm,,Paleoceanography,Distance of the center of a 3 µm spot from the inner shell surface of an individual foraminifer specimen,,N ## d18Oo.univ delta 18O,O. universa,,per mil VPDB,,Paleoceanography,in situ measurements of 3 µm domains within calcite shell,Secondary Ion Mass Spectrometry,N ## d18Oo.univ_up2SD delta 18O,O. universa,two standard deviation upper bound,per mil VPDB,,Paleoceanography,,Secondary Ion Mass Spectrometry,N ## d18Oo.univ_lo2SD delta 18O,O. universa,two standard deviation lower bound,per mil VPDB,,Paleoceanography,,Secondary Ion Mass Spectrometry,N #------------------------ # Data # Data lines follow (have no #) # Data line format - tab-delimited text, variable short name as header # Missing Value: NA Specimen_nr Spot_ID Dist_mm d18O_spot d18O_plus2SD d18O_minus2SD 498 82 3.6 -2.9 -1.9 -4.0 498 83 4 -3.0 -1.9 -4.1 498 87 5.1 -3.4 -2.4 -4.5 498 90 6.8 -3.6 -2.5 -4.7 498 84 8.5 -3.3 -2.2 -4.3 498 88 11.1 -2.5 -1.4 -3.6 498 91 12.7 -3.3 -2.2 -4.3 498 85 13.8 -3.7 -2.7 -4.8 498 86 20.2 -2.6 -1.5 -3.7 483 21 2.7 11.2 11.7 10.7 483 22 3.5 5.5 6.0 5.1 483 23 3.7 11.8 12.2 11.3 483 24 4.9 2.5 3.0 2.1 483 35 6.9 6.1 6.8 5.3 483 36 9.1 13.5 14.3 12.8 483 25 9.3 13.8 14.2 13.3 483 30 12.8 12.9 13.3 12.4 483 26 15 16.1 16.6 15.6 483 37 15 15.6 16.3 14.9 483 29 18.6 -0.1 0.3 -0.6 483 27 20.6 -1.5 -1.0 -1.9 483 38 20.9 -2.1 -1.3 -2.8 483, transect 2 53 4.4 13.2 13.9 12.5 483, transect 2 42 7.1 4.6 5.3 3.9 483, transect 2 49 11 7.2 7.9 6.6 483, transect 2 52 15.4 16.4 17.1 15.8 483, transect 2 50 16.6 11.5 12.2 10.9 483, transect 2 40 18.6 5.6 6.3 4.9 483, transect 2 51 21.3 -2.8 -2.1 -3.4 483, transect 2 39 22.4 -1.7 -0.9 -2.4 483, transect 2 55 27.9 -2.2 -1.5 -2.9 495 69 2.1 9.1 9.7 8.5 495 64 3.3 8.2 8.8 7.6 495 68 6.4 5.5 6.1 4.9 495 63 6.8 2.5 3.1 2.0 495 70 7.9 13.9 14.5 13.4 495 62 10.1 15.6 16.2 15.0 495 67 10.4 17.5 18.1 16.9 495 66 14.2 1.2 1.8 0.6 495 65 17.7 -2.0 -1.4 -2.5 495 61 16 -1.7 -1.1 -2.2 495 60 20.1 -1.3 -0.7 -1.9 728 100 2.5 3.2 3.5 2.9 728 105 4.3 5.1 5.5 4.8 728 113 5.9 2.6 3.1 2.1 728 101 8 -2.4 -2.0 -2.7 728 106 10.3 5.4 5.7 5.0 728 114 11.6 11.2 11.7 10.7 728 102 13.2 8.3 8.6 7.9 728 107 15.6 -1.8 -1.4 -2.1 728 115 17.8 13.0 13.5 12.5 728 103 19.1 15.5 15.9 15.2 728 108 22 -2.5 -2.2 -2.9 728 104 24.9 -2.6 -2.3 -3.0 728 116 25.5 -2.6 -2.1 -3.1