Zehnich, Marc (2021): Stable isotopes measured on N. pachyderma and C. neoteretis of sediment core PS93/016 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.939637
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Published: 2021-12-17 • DOI registered: 2022-03-01
Abstract:
This dataset shows measured stable isotopes of N. pachyderma & C. neoteretis (without vital effect correction). The sampled sediment record PS93/016, consisting of the Giant box core (GKG) PS93/016-4 (81.217°N, 7.341°W, 1549.8 m water depth) and the Kastenlot core (KAL) PS93/016-6 (81.217°N, 7.341°W, 1548.3 m water depth), was obtained during the expedition PS93.1 (2015) (Stein, 2016) of RV Polarstern at the NE Greenland continental margin in the northwestern Fram Strait. The presented data covers the last ca. 195 ka. For stable oxygen and carbon isotope analyses, ca. 30 specimens of the planktic foraminifer Neogloboquadrina pachyderma or the benthic foraminifer species Cassidulina neoteretis from the 100–250 μm fraction were used. Results are expressed in the δ notation referring to the PDB (Pee Dee Belemnite) standard while using NBS 19. Aim of the study was to reconstruct glacial advance and retreat, changes in sea-ice and export of freshwater in the western Fram Strait and, to a certain extent, in the Arctic Ocean.
Supplement to:
Zehnich, Marc; Spielhagen, Robert F; Bauch, Henning A; Kuhnert, Henning (2025): Arctic Ocean freshwater export and its relation to AMOC over the last two glacial cycles. Quaternary Science Reviews, 369, 109612, https://doi.org/10.1016/j.quascirev.2025.109612
Project(s):
Funding:
German Research Foundation (DFG), grant/award no. DFG SP 526/5-1: Environmental and Climate History Off NorthEast Greenland
Coverage:
Median Latitude: 81.216915 * Median Longitude: -7.340835 * South-bound Latitude: 81.216830 * West-bound Longitude: -7.341000 * North-bound Latitude: 81.217000 * East-bound Longitude: -7.340670
Date/Time Start: 2015-07-03T15:34:00 * Date/Time End: 2015-07-03T18:52:00
Minimum DEPTH, sediment/rock: 0.0025 m * Maximum DEPTH, sediment/rock: 4.9750 m
Event(s):
PS93/016-4 * Latitude: 81.217000 * Longitude: -7.340670 * Date/Time: 2015-07-03T15:34:00 * Elevation: -1549.8 m * Location: North Greenland Sea * Campaign: PS93.1 (ARK-XXIX/2.1) * Basis: Polarstern * Method/Device: Giant box corer (GKG)
PS93/016-6 * Latitude: 81.216830 * Longitude: -7.341000 * Date/Time: 2015-07-03T18:52:00 * Elevation: -1548.3 m * Location: North Greenland Sea * Campaign: PS93.1 (ARK-XXIX/2.1) * Basis: Polarstern * Method/Device: Kasten corer (KAL)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Zehnich, Marc | |||
| 2 | Depth, composite | Depth comp | mcd | Zehnich, Marc | PS93/016-6 adjusted to PS93/016-4 | |
| 3 | DEPTH, sediment/rock | Depth sed | m | Zehnich, Marc | Geocode – Uncorrected depth | |
| 4 | AGE | Age | ka BP | Spielhagen, Robert F | BACON age modeling (3.2) | Geocode – Bayesian R package BACON, v. 3.2, standard thickness: 7 cm |
| 5 | Neogloboquadrina pachyderma, δ13C | N. pachyderma δ13C | ‰ PDB | Zehnich, Marc | Mass spectrometer, Thermo Fisher Scientific, MAT 253 | VPDB; Repeatability ±0.03‰ |
| 6 | Neogloboquadrina pachyderma, δ18O | N. pachyderma δ18O | ‰ PDB | Zehnich, Marc | Mass spectrometer, Thermo Fisher Scientific, MAT 253 | VPDB; Repeatability ±0.05‰ |
| 7 | Cassidulina neoteretis, δ13C | C. neoteretis δ13C | ‰ PDB | Zehnich, Marc | Mass spectrometer, Thermo Fisher Scientific, MAT 253 | VPDB; Repeatability ±0.03‰ |
| 8 | Cassidulina neoteretis, δ18O | C. neoteretis δ18O | ‰ PDB | Zehnich, Marc | Mass spectrometer, Thermo Fisher Scientific, MAT 253 | VPDB; Repeatability ±0.05‰ |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
1912 data points