Stable isotopes measured on N. pachyderma and C. neoteretis of sediment core PS93/025

Measured stable isotopes of N. pachyderma & C. neoteretis (without vital effect correction). The sampled sediment record PS93/025, consisting of the Giant box core (GKG) PS93/025-1 (80.481°N, 8.487°W, 291.3 m water depth) and the Kastenlot core (KAL) PS93/025-2 (80.482°N, 8.490°W, 290.2 m water...

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Bibliographic Details
Main Author: Zehnich, Marc
Format: Dataset
Language:English
Published: PANGAEA 2020
Subjects:
AGE
Arctic
ARK-XXIX/2.1
Cassidulina neoteretis
δ13C
δ18O
DEPTH
sediment/rock
Event label
Fram Strait
Giant box corer
GKG
Greenland
KAL
Kasten corer
Mass spectrometer Finnigan MAT 253 coupled to a KIEL IV carbonate preparation device
Neogloboquadrina pachyderma
North Greenland Sea
Polarstern
PS93/025-1
PS93/025-2
PS93.1
Stable isotopes
Dee
Greenland Sea
North Greenland
Online Access:https://doi.pangaea.de/10.1594/PANGAEA.923844
https://doi.org/10.1594/PANGAEA.923844
Description
Summary:Measured stable isotopes of N. pachyderma & C. neoteretis (without vital effect correction). The sampled sediment record PS93/025, consisting of the Giant box core (GKG) PS93/025-1 (80.481°N, 8.487°W, 291.3 m water depth) and the Kastenlot core (KAL) PS93/025-2 (80.482°N, 8.490°W, 290.2 m water depth), was obtained during the expedition PS93.1 (2015) (Stein, 2016) of RV Polarstern on the outermost NE Greenland shelf in the western Fram Strait. The presented data covers the last ca. 10.6 ka. For stable oxygen and carbon isotope analyses, ca. 30 specimens of N. pachyderma and the benthic foraminifer species Cassidulina neoteretis from the 100–250 μm fraction were used. The measurement interval is 1 cm for both species between 264 and 93 cm, whereas it shifts to ca. 2 cm for the benthic species and 5 cm for the planktic species between 93 cm and 0.5 cm, due to low numbers of specimens. All analyses were carried out on a MAT 253 mass spectrometer system and a KIEL IV Carbonate Preparation Device at the GEOMAR Stable Isotope Laboratory with a long-term analytical accuracy of <0.06‰ for δ18O and <0.03‰ for δ13C. 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 the climatic and paleoceanographic variability offshore Northeast Greenland during the last ca. 10ka with multidecadal resolution.

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