Yehudai, Maayan; Farmer, Jesse R; Straub, Marietta; Studer, Anja S; Oesch, Lukas; Creel, Roger C; Schiebel, Ralf; Auderset, Alexandra; Lawrence, Kira T; Ogretmen, Nazik; Haug, Gerald H; Sigman, Daniel M; Martínez-García, Alfredo: Foraminifera-bound nitrogen isotope measurements from Ocean Drilling Program (ODP) Site 108-662 [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.996038 (dataset in review)
Abstract:
This dataset contains foraminifera-bound nitrogen isotope (FB-δ¹⁵N) measurements from Ocean Drilling Program (ODP) Site 108-662 (1°23.4′N, 11°44.0′W; 3,814 m water depth) in the eastern equatorial Atlantic. The dataset includes sample labels, composite depths, age assignments, FB-δ¹⁵N measurements of Trilobatus sacculifer and Neogloboquadrina dutertrei, analytical precision, nitrogen contents, and nitrate test compound quality control measurements. The records span the late Pliocene to early Pleistocene (approximately 3.6–2.0 Ma) and the last 160 ka. The data were generated to document temporal changes in the nitrogen isotopic composition of nitrate supplied to the low-latitude Atlantic. Measurements were obtained following oxidative cleaning of planktic foraminiferal tests and isotopic analysis using the denitrifier method, as described in the associated publication. All foraminifera-bound δ¹⁵N and N content are measured by the persulfate–denitrifier method on the "Sigbench," a custom-built continuous-flow N₂O extraction and purification system coupled to a Thermo Fisher Scientific MAT 253 Plus isotope ratio mass spectrometer (method according to Sigman et al. (2001), Martínez-García et al. (2022), and Moretti et al. (2023)).
Keyword(s):
Supplement to:
Yehudai, Maayan; Farmer, Jesse R; Straub, Marietta; Studer, Anja S; Oesch, Lukas; Creel, Roger C; Schiebel, Ralf; Auderset, Alexandra; Lawrence, Kira T; Ogretmen, Nazik; Haug, Gerald H; Sigman, Daniel M; Martínez-García, Alfredo (submitted): Reduced N₂ fixation in the tropical Atlantic Ocean during the Warm Late Pliocene. Nature Communications
Coverage:
Latitude: -1.390200 * Longitude: -11.739200
Date/Time Start: 1986-03-24T03:00:00 * Date/Time End: 1986-03-26T12:15:00
Minimum Elevation: -3824.0 m * Maximum Elevation: -3824.0 m
Event(s):
108-662A * Latitude: -1.390200 * Longitude: -11.739200 * Date/Time Start: 1986-03-24T03:00:00 * Date/Time End: 1986-03-25T07:45:00 * Elevation: -3824.0 m * Penetration: 200 m * Recovery: 203.87 m * Location: South Atlantic Ocean * Campaign: Leg108 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 22 cores; 200 m cored; 0 m drilled; 101.9 % recovery
108-662B * Latitude: -1.390200 * Longitude: -11.739200 * Date/Time Start: 1986-03-25T07:45:00 * Date/Time End: 1986-03-26T12:15:00 * Elevation: -3824.0 m * Penetration: 188.2 m * Recovery: 114.83 m * Location: South Atlantic Ocean * Campaign: Leg108 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 12 cores; 114 m cored; 0 m drilled; 100.7 % recovery
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Yehudai, Maayan | |||
| 2 | Sample code/label | Sample label | Yehudai, Maayan | DSDP/ODP/IODP sample designation | ||
| 3 | Depth, composite | Depth comp | mcd | Yehudai, Maayan | IODP Depth Scale Terminology | |
| 4 | AGE | Age | ka BP | Yehudai, Maayan | Age, benthic δ¹⁸O stratigraphy record to the LR04 benthic isotope stack | Geocode |
| 5 | Trilobatus sacculifer, δ15N | T. sacculifer δ15N | ‰ air | Yehudai, Maayan | see description in data abstract | |
| 6 | Trilobatus sacculifer, δ15N, standard deviation | T. sacculifer δ15N std dev | ± | Yehudai, Maayan | see description in data abstract | vs. air |
| 7 | Trilobatus sacculifer, nitrogen | T. sacculifer N | µmol/g | Yehudai, Maayan | see description in data abstract | |
| 8 | Neogloboquadrina dutertrei, δ15N | N. dutertrei δ15N | ‰ air | Yehudai, Maayan | see description in data abstract | |
| 9 | Neogloboquadrina dutertrei, δ15N, standard deviation | N. dutertrei δ15N std dev | ± | Yehudai, Maayan | see description in data abstract | vs. air |
| 10 | Neogloboquadrina dutertrei, nitrogen | N. dutertrei N | µmol/g | Yehudai, Maayan | see description in data abstract | |
| 11 | δ15N | δ15N | ‰ air | Yehudai, Maayan | see description in data abstract | Nitrate test compound |
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:
1272 data points