Kubota, Kaoru; Ishikawa, Tsuyoshi; Yoshimura, Toshihiro; Kimoto, Katsunori; Chang, Qing; Ikehara, Minoru; Yokoyama, Yusuke; Jiménez-Espejo, Francisco Jose; Hemming, Sidney R; Barker, Stephen; Hall, Ian R: Chemical analysis of Orbulina universa shells of IODP Site 361-U1476 [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.995467 (dataset in review)
Abstract:
This dataset contains geochemical and analytical quality-control data generated for planktonic foraminifera Orbulina universa from IODP Expedition 361 Site U1476 in the Mozambique Channel, western Indian Ocean. The dataset supports the evaluation of O. universa geochemistry as an archive of past seawater pH, atmospheric CO₂, and paleoceanographic variability over glacial–interglacial to million-year timescales.
solution-based geochemical dataset obtained from O. universa shells, including both screened and unscreened data. The measured parameters include B/Ca, δ¹¹B, δ¹³C, δ¹⁸O, Mg/Ca, Al/Ca, Sr/Ca, Ba/Ca, and ⁸⁷Sr/⁸⁶Sr, together with associated sample metadata and screening information. These data were used to assess contamination, shell-size-dependent effects, glacial–interglacial variability, and the relationship between δ¹¹B-derived seawater pCO₂ and atmospheric CO₂.
Keyword(s):
Ba/Ca; B/Ca; boron; Boron isotope; carbon dioxide; carbon isotope; Foraminifera; Geochemistry; ICP-MS; Indian Ocean; IODP; LA-ICP-MS; Marine Sediment Core; MC-ICP-MS; Mg/Ca; Miocene; Mozambique Channel; Orbulina universa; oxygen isotope; SEM; Sr/Ca; Strontium isotope stratigraphy; TIMS; X-ray micro-CT
Supplement to:
Kubota, Kaoru; Ishikawa, Tsuyoshi; Yoshimura, Toshihiro; Kimoto, Katsunori; Chang, Qing; Ikehara, Minoru; Yokoyama, Yusuke; Jiménez-Espejo, Francisco Jose; Hemming, Sidney R; Barker, Stephen; Hall, Ian R (submitted): A seven-million-year long multiple geochemical record of planktonic foraminifera Orbulina universa from the Mozambique Channel, IODP Expedition 361 Site U1476. Paleoceanography and Paleoclimatology
References:
Hathorne, Ed C; Gagnon, Alex; Felis, Thomas; Adkins, Jess F; Asami, Ryuji; Boer, Wim; Caillon, Nicolas; Case, David H; Cobb, Kim M; Douville, Eric; deMenocal, Peter B; Eisenhauer, Anton; Garbe-Schönberg, Dieter; Geibert, Walter; Goldstein, Steven L; Hughen, Konrad A; Inoue, Mayuri; Kawahata, Hodaka; Kölling, Martin; Cornec, Florence L; Linsley, Braddock K; McGregor, Helen V; Montagna, Paolo; Nurhati, Intan S; Quinn, Terrence Michael; Raddatz, Jacek; Rebaubier, Hélène; Robinson, Laura F; Sadekov, Aleksey Y; Sherrell, Robert M; Sinclair, Daniel; Tudhope, Alexander W; Wei, Gangjian; Wong, Henri; Wu, Henry C; You, Chen-Feng (2013): Interlaboratory study for coral Sr/Ca and other element/Ca ratio measurements. Geochemistry, Geophysics, Geosystems, 14(9), 3730-3750, https://doi.org/10.1002/ggge.20230
Okai, Takashi; Suzuki, A; Terashima, Shigeru; Inoue, Mayuri; Nohara, M; Kawahata, Hodaka; Imai, N (2004): Collaborative analysis of GSJ/AIST geochemical reference materials JCp-1 (Coral) and JCt-1 (Giant Clam). Chikyu Kagaku, 38, 281-286
Funding:
Coverage:
Latitude: -15.821000 * Longitude: 41.769000
Date/Time Start: 2016-03-08T07:50:00 * Date/Time End: 2016-03-10T19:50:00
Minimum DEPTH, sediment/rock: 0.16 m * Maximum DEPTH, sediment/rock: 239.79 m
Event(s):
361-U1476A * Latitude: -15.821000 * Longitude: 41.769000 * Date/Time: 2016-03-08T07:50:00 * Elevation: -2176.8 m * Penetration: 224.2 m * Recovery: 232.9 m * Campaign: Exp361 (South African Climates (Agulhas LGM Density Profile)) * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 24 cores, 0 m drilled, 104% recovery
361-U1476D * Latitude: -15.821000 * Longitude: 41.769000 * Date/Time: 2016-03-09T21:30:00 * Elevation: -2176.6 m * Penetration: 229 m * Recovery: 237.02 m * Campaign: Exp361 (South African Climates (Agulhas LGM Density Profile)) * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 24 cores, 1 m drilled, 104% recovery
361-U1476E * Latitude: -15.821000 * Longitude: 41.769000 * Date/Time: 2016-03-10T19:50:00 * Elevation: -2176.3 m * Penetration: 234.8 m * Recovery: 243.77 m * Campaign: Exp361 (South African Climates (Agulhas LGM Density Profile)) * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 25 cores, 0 m drilled, 104% recovery
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Kubota, Kaoru | |||
| 2 | Latitude of event | Latitude | Kubota, Kaoru | |||
| 3 | Longitude of event | Longitude | Kubota, Kaoru | |||
| 4 | Date/Time of event | Date/Time | Kubota, Kaoru | |||
| 5 | Elevation of event | Elevation | m | Kubota, Kaoru | ||
| 6 | Sample code/label | Sample label | Kubota, Kaoru | DSDP/ODP/IODP sample designation | Incomplete sample labels are mixed samples - see column sample comment | |
| 7 | Half | Half | Kubota, Kaoru | |||
| 8 | Sample comment | Sample comment | Kubota, Kaoru | |||
| 9 | DEPTH, sediment/rock | Depth sed | m | Kubota, Kaoru | IODP Depth Scale Terminology | Geocode – CSF-A |
| 10 | Age | Age | Ma | Kubota, Kaoru | Age model according to Bruel and Sabatier (2020) | Original |
| 11 | Age | Age | Ma | Kubota, Kaoru | Age model according to Bruel and Sabatier (2020) | Refined |
| 12 | Size fraction | Size fraction | Kubota, Kaoru | |||
| 13 | Calcium carbonate, mass | CaCO3 | mg | Kubota, Kaoru | ||
| 14 | Sample ID | Sample ID | Kubota, Kaoru | |||
| 15 | δ13C | δ13C | ‰ | Kubota, Kaoru | Isotope Ratio Mass Spectrometer (IRMS) Thermo Fisher Scientific, MAT 253 Plus | |
| 16 | δ18O | δ18O | ‰ | Kubota, Kaoru | Isotope Ratio Mass Spectrometer (IRMS) Thermo Fisher Scientific, MAT 253 Plus | |
| 17 | Aluminium/Calcium ratio | Al/Ca | µmol/mol | Kubota, Kaoru | Triple quadrupol inductively coupled plasma mass spectrometer (TQ-ICP-MS), Thermo Fisher Scientific, iCAP-TQ | |
| 18 | Barium/Calcium ratio | Ba/Ca | µmol/mol | Kubota, Kaoru | Triple quadrupol inductively coupled plasma mass spectrometer (TQ-ICP-MS), Thermo Fisher Scientific, iCAP-TQ | |
| 19 | Magnesium/Calcium ratio | Mg/Ca | mmol/mol | Kubota, Kaoru | Triple quadrupol inductively coupled plasma mass spectrometer (TQ-ICP-MS), Thermo Fisher Scientific, iCAP-TQ | |
| 20 | Magnesium/Calcium ratio | Mg/Ca | Kubota, Kaoru | Triple quadrupol inductively coupled plasma mass spectrometer (TQ-ICP-MS), Thermo Fisher Scientific, iCAP-TQ | Acepted | |
| 21 | Magnesium/Calcium ratio | Mg/Ca | Kubota, Kaoru | Triple quadrupol inductively coupled plasma mass spectrometer (TQ-ICP-MS), Thermo Fisher Scientific, iCAP-TQ | Rejected | |
| 22 | Strontium/Calcium ratio | Sr/Ca | mmol/mol | Kubota, Kaoru | Triple quadrupol inductively coupled plasma mass spectrometer (TQ-ICP-MS), Thermo Fisher Scientific, iCAP-TQ | |
| 23 | Strontium/Calcium ratio | Sr/Ca | mmol/mol | Kubota, Kaoru | Triple quadrupol inductively coupled plasma mass spectrometer (TQ-ICP-MS), Thermo Fisher Scientific, iCAP-TQ | Accepted |
| 24 | Strontium/Calcium ratio | Sr/Ca | mmol/mol | Kubota, Kaoru | Triple quadrupol inductively coupled plasma mass spectrometer (TQ-ICP-MS), Thermo Fisher Scientific, iCAP-TQ | Rejected |
| 25 | Boron/Calcium ratio | B/Ca | µmol/mol | Kubota, Kaoru | Triple quadrupol inductively coupled plasma mass spectrometer (TQ-ICP-MS), Thermo Fisher Scientific, iCAP-TQ | |
| 26 | Sample comment | Sample comment | Kubota, Kaoru | For B/Ca measurements | ||
| 27 | Boron-11, beam intensity | 11B beam int | V | Kubota, Kaoru | Inductively coupled plasma mass spectrometer (ICP-MS), Thermo Scientific, VG-X7 | |
| 28 | δ11B | δ11B | ‰ SRM | Kubota, Kaoru | Inductively coupled plasma mass spectrometer (ICP-MS), Thermo Scientific, VG-X7 | |
| 29 | δ11B, standard error | δ11B std e | ± | Kubota, Kaoru | Inductively coupled plasma mass spectrometer (ICP-MS), Thermo Scientific, VG-X7 | 2SE |
| 30 | Sample comment | Sample comment | Kubota, Kaoru | For 11B measurements | ||
| 31 | δ11B | δ11B | ‰ SRM | Kubota, Kaoru | Thermal ionization mass spectrometer, Thermo-Fisher Scientific, TRITON TIMS | |
| 32 | δ11B | δ11B | ‰ SRM | Kubota, Kaoru | Thermal ionization mass spectrometer, Thermo-Fisher Scientific, TRITON TIMS | Rejected |
| 33 | Strontium-87/Strontium-86 ratio | 87Sr/86Sr | Kubota, Kaoru | Thermal ionization mass spectrometer, Thermo-Fisher Scientific, TRITON TIMS | ||
| 34 | Strontium-87/Strontium-86 ratio, standard error | 87Sr/86Sr std e | ± | Kubota, Kaoru | Thermal ionization mass spectrometer, Thermo-Fisher Scientific, TRITON TIMS | 1SE |
| 35 | Age | Age | Ma | Kubota, Kaoru | Age model according to Bruel and Sabatier (2020) | Assigned age |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
1678 data points