Risebrobakken, Bjørg; Blindheim, Dag Inge (2026): Benthic (Cassidulina neoteretis and Melonis barleeanus) oxygen isotope data from marine sediment core MD99-2304, the eastern Fram Strait, covering the time interval 33.7-40 kiloyears b2k [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.993597
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Published: 2026-04-29 • DOI registered: 2026-04-29
Abstract:
We present a benthic oxygen isotopes dataset from marine sediment core MD99-2304. Core MD99-2304 was retrieved from the eastern Fram Strait (77°37'15.6N, 9°56'54E), with a CALYPSO piston corer, from 1348 m water depth during the Marion Dufresne IMAGES 5 expedition (leg MD114) in 1999. Measurements were done on the benthic foraminifera species Cassidulina neoteretis and Melonis barleeanus, in FARLAB at the Department of Earth Sciences, University of Bergen, using a MAT253 mass spectrometer coupled to a Kiel IV preparation line. Measurements were done between year 2022 and 2025. Results are calibrated to Vienna Pee Dee Belemnite (VPDB) using NBS 19 and NBS 18 and Carrara Marble (CM12) as a working standard. Oxygen isotope values for M. barleeanus are presented both as raw data and with a 0.4‰ disequilibrium correction. The results provide information on water mass characteristics of intermediate water in the eastern Fram strait.
Keyword(s):
Related to:
Wong, Wanyee; Risebrobakken, Bjørg; Fahl, Kirsten; Stein, Ruediger; Jansen, Eystein; Steinsland, Kristine; Kissel, Catherine (2024): Sea ice in the Nordic Seas: Greenland stadial to interstadial changes. Quaternary Science Reviews, 343, 108916, https://doi.org/10.1016/j.quascirev.2024.108916
Wong, Wanyee; Risebrobakken, Bjørg; Ödalen, Malin; Tisserand, Amandine A; Fahl, Kirsten; Stein, Ruediger; Jansen, Eystein (2025): Ocean control on sea ice in the Nordic Seas. Climate of the Past, 21(11), 2225-2242, https://doi.org/10.5194/cp-21-2225-2025
Project(s):
ABRUPT Arctic Climate Change (ABRUPT)
Funding:
Coverage:
Latitude: 77.621067 * Longitude: 9.948333
Date/Time Start: 1999-08-01T00:00:00 * Date/Time End: 1999-08-01T00:00:00
Minimum DEPTH, sediment/rock: 8.1325 m * Maximum DEPTH, sediment/rock: 9.7475 m
Event(s):
MD99-2304 (3280N) * Latitude: 77.621067 * Longitude: 9.948333 * Date/Time: 1999-08-01T00:00:00 * Elevation: -1348.0 m * Recovery: 22.885 m * Location: Spitsbergen slope * Campaign: MD114 (IMAGES V) * Basis: Marion Dufresne (1995) * Method/Device: Calypso Corer (CALYPSO)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DEPTH, sediment/rock | Depth sed | m | Risebrobakken, Bjørg | Geocode | |
| 2 | Depth, corrected | Depth corr | m | Risebrobakken, Bjørg | ||
| 3 | Age | Age | ka b2k | Risebrobakken, Bjørg | ||
| 4 | Cassidulina neoteretis, δ18O | C. neoteretis δ18O | ‰ PDB | Risebrobakken, Bjørg | Finnigan MAT253 coupled to a Kiel IV preparation line | vs VPDB |
| 5 | Melonis barleeanus, δ18O | M. barleeanus δ18O | ‰ PDB | Risebrobakken, Bjørg | Finnigan MAT253 coupled to a Kiel IV preparation line | vs VPDB |
| 6 | Melonis barleeanus, δ18O | M. barleeanus δ18O | ‰ PDB | Risebrobakken, Bjørg | Corrected | corr 0.4‰, vs VPDB |
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:
723 data points