Borrelli, Chiara; Katz, Miriam E; Cramer, Benjamin S; Toggweiler, J Robbie: Middle to early late Eocene benthic foraminiferal oxygen and carbon stable isotopes from IODP Hole 177-1090B [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.983770 (dataset in review)
Abstract:
Here, we present oxygen and carbon stable isotope data measured on benthic foraminifera from Site 177-1090B. This site is located on the southwest flank of the Agulhas Ridge (sub-Antarctic Atlantic Ocean) and was drilled during the Ocean Drilling Program Leg 177. Benthic foraminifera were picked from the >150 •m fraction and sonified to remove any residual clay prior to stable isotope analyses. Based on preservation and availability, approximately 1 to 12 specimens of benthic foraminifera of the genus Cibicidoides were selected for analysis. When Cibicidoides were not present in the samples considered, 5 to 21 specimens of Nuttallides truempyi or 3 to 12 specimens of Oridorsalis umbonatus were analyzed (34 and 26 samples, respectively, including replicates). In these cases, values were corrected to Cibicidoides using the calibration of Katz et al. (2003, doi:10.1029/2002PA000798). Measurements were conducted at the Stable Isotope Laboratory in the Department of Earth and Planetary Sciences at Rutgers University, using a Micromass Optima mass spectrometer. Stable isotope values are reported versus Vienna Pee Dee Belemnite (V-PDB) by analyzing the standard NBS-19 and an internal laboratory standard. The data set reported here spans the middle and early late Eocene (~42-37 Ma). Sample ages were calculated using an age model based on magnetostratigraphy and calcareous nannoplankton datums (Borrelli et al., 2021; doi:10.1029/2020PA004168) and were reported according to the Geological Time Scale 2012 (Gradstein et al., 2012, doi:10.1016/C2011-1-08249-8).
Supplement to:
Borrelli, Chiara; Katz, Miriam E; Cramer, Benjamin S; Toggweiler, J Robbie (in review): Development of a proto-thermohaline circulation and deep supergyre prior to the Eocene/Oligocene Transition. Paleoceanography and Paleoclimatology
References:
Borrelli, Chiara; Katz, Miriam E; Toggweiler, J Robbie (2021): Middle to Late Eocene Changes of the Ocean Carbonate Cycle. Paleoceanography and Paleoclimatology, 36(12), e2020PA004168, https://doi.org/10.1029/2020PA004168
Gradstein, Felix M; Ogg, James; Schmitz, Mark; Ogg, Gabi (2012): The Geologic Time Scale 2012. Elsevier, Amsterdam, 1176 pp, https://doi.org/10.1016/C2011-1-08249-8
Katz, Miriam E; Katz, David R; Wright, James D; Miller, Kenneth G; Pak, Dorothy K; Shackleton, Nicholas J; Thomas, Ellen (2003): Early Cenozoic benthic foraminiferal isotopes: Species reliability and interspecies correction factors. Paleoceanography, 18(2), 1024, https://doi.org/10.1029/2002PA000798
Coverage:
Latitude: -42.913700 * Longitude: 8.899700
Date/Time Start: 1997-12-26T15:22:00 * Date/Time End: 1997-12-28T14:55:00
Minimum DEPTH, sediment/rock: 311.155 m * Maximum DEPTH, sediment/rock: 371.000 m
Event(s):
177-1090B * Latitude: -42.913700 * Longitude: 8.899700 * Date/Time Start: 1997-12-26T15:22:00 * Date/Time End: 1997-12-28T14:55:00 * Elevation: -3699.4 m * Penetration: 397.5 m * Recovery: 373.23 m * Location: South Atlantic Ocean * Campaign: Leg177 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 43 cores; 397.5 m cored; 0 m drilled; 93.9 % recovery
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Sample code/label | Sample label | Borrelli, Chiara | DSDP/ODP/IODP sample designation | ||
| 2 | DEPTH, sediment/rock | Depth sed | m | Borrelli, Chiara | IODP Depth Scale Terminology | Geocode – In meters below seafloor [m.b.s.f] |
| 3 | Depth, composite | Depth comp | mcd | Borrelli, Chiara | IODP Depth Scale Terminology | Meters composite depth [m.c.d.] |
| 4 | Age | Age | Ma | Borrelli, Chiara | Age model, Gradstein et al. (2012) GTS2012 | |
| 5 | δ18O | δ18O | ‰ | Borrelli, Chiara | Micromass Optima mass spectrometer; coupled with Multiprep device, FISONS | vs. V-PDB |
| 6 | δ13C | δ13C | ‰ PDB | Borrelli, Chiara | Micromass Optima mass spectrometer; coupled with Multiprep device, FISONS | vs. V-PDB |
| 7 | Cibicidoides spp., δ18O | Cibicidoides spp. δ18O | ‰ PDB | Borrelli, Chiara | According to Katz et al. (2003) | vs. V-PDB |
| 8 | Cibicidoides spp., δ13C | Cibicidoides spp. δ13C | ‰ PDB | Borrelli, Chiara | According to Katz et al. (2003) | vs. V-PDB |
| 9 | Species | Species | Borrelli, Chiara | |||
| 10 | Species, unique identification (Semantic URI) | Species UID (Semantic URI) | Borrelli, Chiara | Reference in WoRMS (WoRMS) | ||
| 11 | Species, unique identification (URI) | Species UID (URI) | Borrelli, Chiara | Reference in WoRMS (WoRMS) |
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:
1053 data points