Nkwain, Gael; Belanger, Christina L; Alvarez Zarikian, Carlos A: Stable isotope data (d13C and d18O) from benthic foraminifera from IODP Site 323-U1339 [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.995972 (dataset in review)
Abstract:
Benthic foraminifera were quantitatively identified (>150µm size fraction) in 158 samples from IODP site U1339 on the Umnak Plateau, southeastern Bering Sea collected by Expedition 323 Scientists in 2009. Of 128 samples, benthic foraminifera from 44 were analyzed isotopically. Between two and five tests per species were measured together depending on availability and test mass, yielding 116 measurements across four taxa: Elphidium batialis (number of samples = 44), Uvigerina peregrina (number of samples = 32), Nonionella labradorica (number of samples = 22), and Globobulimina auriculata (number of samples = 18). Measurements were performed at the Oregon State University Stable Isotope Laboratory using a Thermo Finnigan MAT-252 coupled to a Kiel III carbonate device, calibrated against NBS-19 and an internal laboratory standard ("Wiley"). Results are reported relative to Vienna Pee Dee Belemnite (VPDB); analytical precision (1σ) was ±0.03‰ for d13C and ±0.05‰ for d18O. These data were used along with benthic foraminiferal assemblage composition and diagenetic characteristics to reconstruct methane seepage in the Bering Sea across Marine Isotope Stages 7 to 12.
Keyword(s):
Supplement to:
Nkwain, Gael; Belanger, Christina L; Alvarez Zarikian, Carlos A (submitted): Tracing Past Methane Seepage and Hypoxia Events in the Bering Sea (IODP Site U1339) using Benthic Foraminiferal Assemblages. Paleoceanography and Paleoclimatology
Coverage:
Median Latitude: 54.669962 * Median Longitude: -169.981468 * South-bound Latitude: 54.669818 * West-bound Longitude: -169.981515 * North-bound Latitude: 54.670105 * East-bound Longitude: -169.981420
Minimum DEPTH, sediment/rock: 66.489 m * Maximum DEPTH, sediment/rock: 117.326 m
Event(s):
323-U1339C * Latitude: 54.670105 * Longitude: -169.981420 * Elevation: -1867.6 m * Recovery: 199.4 m * Campaign: Exp323 (Bering Sea Paleoceanography) * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 21 cores; 194.8 m cored; 102 % recovered
323-U1339D * Latitude: 54.669818 * Longitude: -169.981515 * Elevation: -1879.4 m * Recovery: 206 m * Campaign: Exp323 (Bering Sea Paleoceanography) * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 22 cores; 200 m cored; 103 % recovered
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Nkwain, Gael | |||
| 2 | Latitude of event | Latitude | Nkwain, Gael | |||
| 3 | Longitude of event | Longitude | Nkwain, Gael | |||
| 4 | Elevation of event | Elevation | m | Nkwain, Gael | ||
| 5 | Sample code/label | Sample label | Nkwain, Gael | DSDP/ODP/IODP sample designation | ||
| 6 | DEPTH, sediment/rock | Depth sed | m | Nkwain, Gael | IODP Depth Scale Terminology | Geocode – CCSF |
| 7 | Taxon/taxa, unique identification | Taxa UID | Nkwain, Gael | Reference in WoRMS (WoRMS) | ||
| 8 | Taxon/taxa, unique identification (Semantic URI) | Taxa UID (Semantic URI) | Nkwain, Gael | Reference in WoRMS (WoRMS) | ||
| 9 | Taxon/taxa, unique identification (URI) | Taxa UID (URI) | Nkwain, Gael | Reference in WoRMS (WoRMS) | ||
| 10 | Number of individuals | Ind No | # | Nkwain, Gael | Counted | |
| 11 | Foraminifera, benthic δ13C | Foram benth δ13C | ‰ PDB | Nkwain, Gael | Mass spectrometer, Thermo Finnigan MAT 252 with Kiel III automated carbonate preparation device | vs. VPDB |
| 12 | Foraminifera, benthic δ18O | Foram benth δ18O | ‰ PDB | Nkwain, Gael | Mass spectrometer, Thermo Finnigan MAT 252 with Kiel III automated carbonate preparation device | vs. VPDB |
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:
580 data points