# Global Ocean Planktonic Foraminifera Boron Isotope Seawater pH Reconstruction #----------------------------------------------------------------------- # World Data Service for Paleoclimatology, Boulder # and # NOAA Paleoclimatology Program # National Centers for Environmental Information (NCEI) #----------------------------------------------------------------------- # Template Version 3.0 # Encoding: UTF-8 # NOTE: Please cite Publication, and Online_Resource and date accessed when using these data. # If there is no publication information, please cite Investigators, Title, and Online_Resource and date accessed. # # Online_Resource: https://www.ncdc.noaa.gov/paleo/study/30352 # Description: NOAA Landing Page # Online_Resource: https://www.ncei.noaa.gov/pub/data/paleo/contributions_by_author/guillermic2020/guillermic2020.txt # Description: NOAA location of the template # # Original_Source_URL: # Description: # # Description/Documentation lines begin with # # Data lines have no # # # Data_Type: Paleoceanography # # Dataset_DOI: # # Parameter_Keywords: carbon isotopes, oxygen isotopes, geochemistry, reconstruction #-------------------- # Contribution_Date # Date: 2020-06-29 #-------------------- # File_Last_Modified_Date # Date: 2020-06-29 #-------------------- # Title # Study_Name: Global Ocean Planktonic Foraminifera Boron Isotope Seawater pH Reconstruction #-------------------- # Investigators # Investigators: Guillermic, M.; Misra, S.; Eagle, R.; Villa, A.; Chang, F.; Tripati, A. #--------------------------------------- # Description_Notes_and_Keywords # Description: Core top foraminfera geochemical and boron isotope data and from 6 ocean sediment cores, plus reconstructions of pre-industrial seawater pH, temperature, and salinity. # Provided Keywords: Geochemistry, Boron isotopes, foraminifera, core-top, CD107, CD145, 806, 807, WIND-33B, WIND-10B #--------------------------------------- # Publication # Authors: Maxence Guillermic, Sambuddha Misra, Robert Eagle, Alexandra Villa, Fengming Chang, and Aradhna Tripati # Published_Date_or_Year: 2020 accepted # Published_Title: Seawater pH reconstruction using boron isotopes in multiple planktonic foraminifera species with different depth habitats and their potential to constrain pH and pCO2 gradients # Journal_Name: Biogeosciences # Volume: # Edition: # Issue: # Pages: # Report_Number: # DOI: 10.5194/bg-2019-266 # Online_Resource: https://www.biogeosciences-discuss.net/bg-2019-266/ # Full_Citation: # Abstract: Boron isotope systematics of planktonic foraminifera from core-top sediments and culture experiments have been studied to investigate the sensitivity of d11B of their calcite tests to seawater pH. However, our knowledge of the relationship between d11B and pH remains incomplete for several taxa. Thus, to expand the potential scope of application of this proxy, we report data for 7 different species of planktonic foraminifera from sediment core-tops. We utilize a method for the measurement of small samples of foraminifera and calculate the d11B-calcite sensitivity to pH for Globigerinoides ruber, Trilobus sacculifer (sacc or w/o sacc), Orbulina universa, Pulleniatina obliquiloculata, Neogloboquadrina dutertrei, Globorotalia menardii and Globorotalia tumida, including for unstudied coretops and species. The sensitivity of d11Bcarbonate to d11Bborate (eg. Dd11Bcarbonate/Dd11Bborate) in core-tops is close to unity. Deep-dwelling species closely follow the core-top calibration for O. universa, which is attributed to respiration-driven microenvironments, likely caused by light limitation for symbiont-bearing foraminifera. These taxa have diverse ecological preferences and are from sites that span a range of oceanographic regimes, including some that are in regions of air-sea equilibrium and others that are out of equilibrium with the atmosphere. Our data support the premise that utilizing boron isotope measurements of multiple species within a sediment core can be utilized to constrain vertical profiles of pH and pCO2 at sites spanning different oceanic regimes, thereby constraining changes in vertical pH gradients and yielding insights into the past behavior of the oceanic carbon pump. #--------------------------------------- # Funding_Agency # Funding_Agency_Name: US Department of Energy # Grant: DE-FG02-13ER16402 #--------------------------------------- # Funding_Agency # Funding_Agency_Name: ANR France LabexMer # Grant: ANR-10-LABX-19-01 #--------------------------------------- # Funding_Agency # Funding_Agency_Name: IAGC student grant # Grant: IAGC student 65 #--------------------------------------- # Site_Information # Site_Name: Global Ocean # Location: # Northernmost_Latitude: 90 # Southernmost_Latitude: -80 # Easternmost_Longitude: 180 # Westernmost_Longitude: -180 # Elevation: 0 #--------------------------------------- # Data_Collection # Collection_Name: Guillermic2020pH # First_Year: 300 # Last_Year: 200 # Time_Unit: Cal. Year BP # Core_Length: # Notes: #--------------------------------------- # 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) # ## Core sample identification,,,,,paleoceanography,,,C,core ## Species notes,,,,,paleoceanography,,,C,species ## Fraction notes,,,,,paleoceanography,,,C, Fraction from which the foraminifera were picked ## d13C delta 13C,planktic foraminifer,,per mil VPDB,,paleoceanography,,,N,GasBench II coupled to a Delta V; Analytical uncertainty on the in-house standard CA21 is 0.03 per mil (1SD) ## d18O delta 18O,planktic foraminifer,,per mil VPDB,,paleoceanography,,,N,GasBench II coupled to a Delta V; Analytical uncertainty on the in-house standard CA21 is 0.11 per mil (1SD) ## d11Bc1 delta 11B, planktic foraminifer,,per mil,,paleoceanography,,multiple collector inductively-coupled plasma mass spectrometry,N, 1st measurement of the boron isotopic composition of the foraminifer; boron purification with microdistillation ## 2SD delta 11B, planktic foraminifer,two standard deviations,per mil,,paleoceanography,,multiple collector inductively-coupled plasma mass spectrometry,N, 1st measurement of the boron isotopic composition of the foraminifer; boron purification with microdistillation; Analytical uncertainty (2SD) was determined on reproducibility of the AE121 standard ## d11Bc2 delta 11B, planktic foraminifer,,per mil,,paleoceanography,,multiple collector inductively-coupled plasma mass spectrometry,N, 2nd measurement of the boron isotopic composition of the foraminifera; boron purification with microdistillation ## 2SD delta 11B, planktic foraminifer,two standard deviations,per mil,,paleoceanography,,multiple collector inductively-coupled plasma mass spectrometry,N, 2nd measurement of the boron isotopic composition of the foraminifera; boron purification with microdistillation; Analytical uncertainty (2SD) was determined on reproducibility of the AE121 standard ## d11Baverage delta 11B, planktic foraminifer,,per mil,,paleoceanography,averaged,,N,Average of d11Bc1 and d11Bc2. When two measurements were carried out uncertainty was calculated with Delta a =sqrt ( 1/Sum i(1/Delta ai)2); with only one measurement the error was determined on reproducibility of the AE121 standard ## 2SD delta 11B, planktic foraminifer,two standard deviations,per mil,,paleoceanography,,,N,Average of d11Bc1 and d11Bc2. When two measurements were carried out uncertainty was calculated with Delta a =sqrt ( 1/Sum i(1/Delta ai)2); with only one measurement the error was determined on reproducibility of the AE121 standard ## Li/Ca lithium/calcium,planktic foraminifer,two standard deviations, micromole per mole,,paleoceanography,,,N, calculated on the reproducibility of CamWuellestorfi (see text Table S3); 0.4 umol/mol for Li/Ca ## B/Ca boron/calcium,planktic foraminifer,two standard deviations, micromole per mole,,paleoceanography,,,N,calculated on the reproducibility of CamWuellestorfi (see text Table S3); 7 umol/mol for B/Ca ## Mg/Ca magnesium/calcium,planktic foraminifer,two standard deviations, millimole per mole,,paleoceanography,,,N, calculated on the reproducibility of CamWuellestorfi (see text Table S3); 0.01 mmol/mol for Mg/Ca ## Mn/Ca manganese/calcium,planktic foraminifer,two standard deviations, micromole per mole,,paleoceanography,,,N, calculated on the reproducibility of CamWuellestorfi (see text Table S3); 7 umol/mol for Mn/Ca ## Fe/Ca iron/calcium,planktic foraminifer,two standard deviations, millimole per mole,,paleoceanography,,,N, calculated on the reproducibility of CamWuellestorfi (see text Table S3); 0.01 mmol/mol for Fe/Ca ## Temperature sea water temperature,,,degree celsius,,instrumental,,,N,Determined from the World ocean database; Temperature at the living depth habitat of the foraminifera; Error determined within uncertainty of the depth reconstruction ## 2SD sea water temperature,,two standard deviations,degree celsius,,instrumental,,,N,Determined from the World ocean database; Temperature at the living depth habitat of the foraminifera; Error determined within uncertainty of the depth reconstruction ## Salinity salinity,sea water,,practical salinity unit,,instrumental,,,N,Determined from the World ocean database; Salinity at the living depth habitat of the foraminifera; Error determined within uncertainty of the depth reconstruction ## 2SD salinity,sea water,two standard deviations,practical salinity unit,,instrumental,,,N,Determined from the World ocean database; Salinity at the living depth habitat of the foraminifera; Error determined within uncertainty of the depth reconstruction ## pH pH,sea water,,dimensionless,,paleoceanography;climate reconstructions,,,N,Pre-industrial pH (tot scale) at the living depth habitat of the foraminifera; Calculated from the GLODAP database and corrected from anthropogenic inputs (refer to paper for calculations); Error determined within uncertainty of the depth reconstruction ## 2SD pH,sea water,two standard deviations,dimensionless,,paleoceanography;climate reconstructions,,,N,Pre-industrial pH (tot scale) at the living depth habitat of the foraminifera; Calculated from the GLODAP database and corrected from anthropogenic inputs (refer to paper for calculations); Error determined within uncertainty of the depth reconstruction ## d11Bborate delta 11B,borate ion,,per mil,,paleoceanography;climate reconstructions,,,N,Boron isotopic compostion of borate ion in seawater at the living depth of the foraminifera; Error determined from Monte Carlo simulations (see Henehan et al.2016) ## 2SD delta 11B,borate ion,two standard deviations,per mil,,paleoceanography;climate reconstructions,,,N,Boron isotopic compostion of borate ion in seawater at the living depth of the foraminifera; Error determined from Monte Carlo simulations (see Henehan et al.2016) # #------------------------ # Data: # Data lines follow (have no #) # Data line format - tab-delimited text, variable short name as header # Missing_Values: -999 # Core Species Fraction d13C d18O d11Bc1 2SD d11Bc2 2SD d11Baverage 2SD Li/Ca B/Ca Mg/Ca Mn/Ca Fe/Ca Temperature 2SD Salinity 2SD pH 2SD d11Bborate 2SD CD107a O. universa >500 1.99 1.25 16.85 0.31 16.95 0.31 16.90 0.22 13.9 68 3.60 13 0.16 12.0 0.3 35.6 0.01 8.19 0.03 17.86 0.31 FC-01a G. ruber (white ss) 250-300 1.37 -1.32 19.33 0.31 19.41 0.31 19.37 0.22 15.4 109 3.98 10 0.07 23.4 5.9 35.0 0.37 8.10 0.04 18.40 0.90 FC-01a T. sacculifer (sacc) 300-400 1.88 -2.20 18.71 0.24 18.73 0.24 18.72 0.17 12.1 87 3.45 9 0.03 21.9 5.7 35.1 0.27 8.09 0.03 18.15 0.81 FC-01a T. sacculifer (w/o sacc) 300-400 2.02 -1.05 19.13 0.24 19.32 0.24 19.23 0.17 12.1 82 3.42 14 0.03 21.9 5.7 35.1 0.27 8.09 0.03 18.16 0.82 FC-01a O. universa >500 -999 -999 15.50 0.26 -999 -999 15.50 0.26 -999 -999 -999 -999 -999 18.2 4.0 35.2 0.02 8.07 0.04 17.42 0.61 FC-01a P. obliquiloculata 300-400 1.0 -0.55 16.40 0.26 16.10 0.26 16.25 0.18 15.4 78 2.06 14 0.05 20.5 4.6 35.2 0.14 8.09 0.03 17.91 0.66 FC-01a G. menardii 300-400 1.64 0.43 17.52 0.26 17.69 0.26 17.60 0.18 12.7 63 2.26 8 0.07 20.5 4.6 35.2 0.14 8.09 0.03 17.93 0.68 FC-01a N. dutertrei 300-400 1.28 -0.43 16.40 0.31 16.59 0.31 16.50 0.22 18.6 73 1.81 11 0.03 17.7 4.0 35.1 0.02 8.06 0.04 17.26 0.62 FC-01a G. tumida 300-400 1.29 -0.53 16.21 0.31 16.18 0.31 16.20 0.22 10.0 61 1.79 11 0.02 17.1 1.6 35.1 0.03 8.06 0.02 17.21 0.27 FC-02a G. ruber (white ss) 250-300 0.30 -1.40 20.02 0.24 19.90 0.24 19.96 0.17 18.2 125 3.47 10 0.07 20.4 2.4 35.5 0.05 8.19 0.01 19.06 0.34 FC-02a T. sacculifer (sacc) 300-400 1.43 -1.60 20.07 0.24 19.93 0.24 20.00 0.17 14.2 106 3.30 10 0.03 19.3 1.9 35.6 0.06 8.19 0.01 18.89 0.30 FC-02a O. universa >500 1.79 0.02 18.05 0.26 17.97 0.26 18.01 0.18 14.8 67 4.40 11 0.05 20.1 1.1 35.5 0.02 8.19 0.00 19.00 0.17 FC-02a P. obliquiloculata 300-400 0.34 0.56 16.35 0.26 16.69 0.26 16.52 0.18 16.6 83 2.33 7 0.03 18.3 0.5 35.6 0.01 8.18 0.01 18.64 0.14 FC-02a G. menardii 300-400 1.73 -0.51 17.77 0.26 -999 -999 17.77 0.26 15.8 125 2.21 17 0.03 20.4 1.9 35.5 0.03 8.19 0.01 19.05 0.30 FC-02a N. dutertrei 300-400 1.03 -0.55 16.78 0.31 17.03 0.31 16.91 0.22 18.6 82 2.13 13 0.07 17.5 1.0 35.6 0.05 8.16 0.02 18.33 0.27 FC-02a G. tumida 300-400 1.64 -0.28 16.93 0.26 16.95 0.26 16.94 0.18 15.6 87 1.90 17 0.04 17.8 0.8 35.6 0.02 8.17 0.02 18.47 0.25 FC-12b G. ruber (white ss) 250-300 0.58 -2.82 21.30 0.31 21.23 0.31 21.26 0.22 19.5 164 5.76 14 0.16 25.9 0.3 36.6 0.06 8.18 0.05 19.81 0.65 FC-12b T. sacculifer (sacc) 300-400 1.76 -2.15 19.65 0.31 19.57 0.31 19.61 0.22 14.6 101 4.28 17 0.14 25.3 0.6 36.5 0.02 8.10 0.06 18.71 0.77 FC-12b T. sacculifer (w/o sacc) 300-400 1.97 -2.19 20.32 0.31 20.37 0.31 20.34 0.22 16.7 116 4.90 20 0.26 25.9 0.0 36.5 0.07 8.16 0.04 19.54 0.50 FC-12b O. universa >500 1.89 -1.59 18.13 0.20 -999 -999 18.13 0.20 13.6 103 6.91 10 0.06 25.5 0.6 36.5 0.01 8.11 0.06 18.90 0.69 FC-12b P. obliquiloculata 300-400 0.50 -1.58 16.45 0.26 16.15 0.26 16.30 0.18 16.7 95 3.61 69 0.38 25.0 0.9 36.5 0.10 8.06 0.06 18.24 0.67 FC-12b G. menardii 300-400 1.05 -0.97 16.20 0.26 -999 -999 16.20 0.26 14.8 75 3.44 52 0.17 24.1 1.1 36.4 0.14 8.02 0.06 17.69 0.62 FC-12b N. dutertrei 300-400 1.35 -1.57 17.77 0.24 17.73 0.24 17.75 0.17 17.1 75 3.25 46 0.25 25.3 0.6 36.5 0.02 8.10 0.06 18.75 0.71 FC-13a G. ruber (white ss) 250-300 0.08 -3.71 20.27 0.24 20.15 0.24 20.21 0.17 16.4 147 4.52 13 0.08 27.1 1.1 36.7 0.09 8.10 0.03 19.00 0.37 FC-13a T. sacculifer (w/o sacc) 300-400 1.59 -2.46 17.85 0.29 -999 -999 17.85 0.29 15.7 121 5.49 21 0.49 25.7 0.7 36.6 0.05 8.07 0.03 18.86 0.45 FC-13a P. obliquiloculata 300-400 0.00 -0.97 16.51 0.26 16.50 0.26 16.51 0.18 18.7 79 4.43 30 0.43 25.4 1.2 36.6 0.09 8.06 0.05 18.31 0.57 FC-13a G. menardii 300-400 0.75 -1.07 16.74 0.20 -999 -999 16.74 0.20 9.2 60 1.99 19 0.07 25.1 1.3 36.6 0.11 8.04 0.05 18.04 0.56 FC-13a N. dutertrei 300-400 0.71 -1.41 14.43 0.24 14.40 0.24 14.41 0.17 15.7 69 1.98 15 0.06 19.4 2.3 36.0 0.13 7.80 0.03 15.37 0.27 WP07-a G. ruber (white ss) 250-400 -999 -999 19.12 0.29 -999 -999 19.12 0.29 14.5 144 4.32 15 0.16 26.1 2.4 35.2 0.40 8.05 0.05 18.21 0.64 WP07-a T. sacculifer (sacc) 250-400 -999 -999 20.13 0.21 -999 -999 20.13 0.21 12.7 92 4.44 22 0.05 27.4 2.2 35.0 0.49 8.08 0.05 18.68 0.65 WP07-a T. sacculifer (w/o sacc) 250-400 -999 -999 18.10 0.31 18.04 0.31 18.07 0.22 12.3 192 4.51 21 0.08 24.7 1.8 35.4 0.16 8.03 0.00 17.80 0.23 WP07-a O.universa 500-630 -999 -999 18.13 0.26 17.99 0.26 18.06 0.18 11.9 71 7.52 11 0.02 27.7 2.6 34.9 0.64 8.09 0.07 18.78 0.83 WP07-a P. obliquiloculata 250-400 -999 -999 16.08 0.26 16.19 0.26 16.14 0.18 13.4 72 3.02 7 0.03 24.7 3.6 35.4 0.43 8.03 0.02 17.82 0.48 WP07-a N. dutertrei 250-400 -999 -999 16.91 0.31 16.99 0.31 16.95 0.22 21.7 86 3.66 42 0.63 20.6 3.8 35.5 0.18 8.03 0.01 17.34 0.45 WP07-a G. tumida 250-400 -999 -999 16.45 0.26 16.32 0.26 16.39 0.18 10.6 58 2.55 16 0.10 18.7 5.0 35.4 0.24 8.04 0.01 17.23 0.56 806A T. sacculifer (w/o sacc) 250-400 -999 -999 17.53 0.36 -999 -999 17.53 0.36 14.4 77 3.89 7 0.15 24.7 4.7 35.4 0.07 8.02 0.01 17.72 0.55 807A T. sacculifer (w/o sacc) 250-400 -999 -999 18.38 0.21 18.17 0.21 18.28 0.15 12.5 87 4.24 17 0.09 26.1 2.3 35.1 0.03 7.99 0.10 17.59 1.02