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| Format: | Dataset Open Access |
| Language: | en |
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PANGAEA
2026
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| Online Access: | https://doi.org/10.1594/PANGAEA.983770 |
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| _version_ | 1867171899246641152 |
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| author | Borrelli, Chiara Katz, Miriam E Cramer, Benjamin S Toggweiler, John R |
| author_facet | Borrelli, Chiara Katz, Miriam E Cramer, Benjamin S Toggweiler, John R |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | 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). |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_983770 |
| institution | PANGAEA |
| language | en |
| publishDate | 2026 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Middle to early late Eocene benthic foraminiferal oxygen and carbon stable isotopes from ODP Hole 177-1090B Borrelli, Chiara Katz, Miriam E Cramer, Benjamin S Toggweiler, John R 177-1090B; According to Katz et al. (2003); Age; Age model, Gradstein et al. (2012) GTS2012; Benthic foraminiferal stable isotopes; Cibicidoides spp., δ13C; Cibicidoides spp., δ18O; Depth, composite; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Eocene; IODP Depth Scale Terminology; Joides Resolution; Leg177; Micromass Optima mass spectrometer; coupled with Multiprep device, FISONS; ocean drilling program; Reference in WoRMS; Sample code/label; Site 1090; South Atlantic Ocean; Species; Species, unique identification (Semantic URI); Species, unique identification (URI); WoRMS; δ13C; δ18O 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). |
| title | Middle to early late Eocene benthic foraminiferal oxygen and carbon stable isotopes from ODP Hole 177-1090B |
| topic | 177-1090B; According to Katz et al. (2003); Age; Age model, Gradstein et al. (2012) GTS2012; Benthic foraminiferal stable isotopes; Cibicidoides spp., δ13C; Cibicidoides spp., δ18O; Depth, composite; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Eocene; IODP Depth Scale Terminology; Joides Resolution; Leg177; Micromass Optima mass spectrometer; coupled with Multiprep device, FISONS; ocean drilling program; Reference in WoRMS; Sample code/label; Site 1090; South Atlantic Ocean; Species; Species, unique identification (Semantic URI); Species, unique identification (URI); WoRMS; δ13C; δ18O |
| url | https://doi.org/10.1594/PANGAEA.983770 |