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Risebrobakken, Bjørg; Blindheim, Dag Inge (2026): Benthic foraminifera abundance data in 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.993569

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Published: 2026-04-29 • DOI registered: 2026-04-29

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Abstract:
We present an absolute abundance benthic foraminifera 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. Benthic foraminifera present in the >150 µm fraction were counted at NORCE, using a light microscope at NORCE Research AS. Counts were done within the project period, 2022 to 2025. The dataset provides information on water mass conditions and associated benthic fauna responses.
Keyword(s):
Arctic; Benthic foraminifera; Dansgaard-Oeschger events; Fram Strait; MIS 3
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:
The Research Council of Norway (RCN), grant/award no. 325333: Abrupt Arctic Climate Change
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):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1DEPTH, sediment/rockDepth sedmRisebrobakken, BjørgGeocode
2Depth, correctedDepth corrmRisebrobakken, Bjørg
3AgeAgeka b2kRisebrobakken, Bjørg
4Dry massDry mgRisebrobakken, Bjørgsediment
5Foraminifera, benthicForam benth#Risebrobakken, Bjørg>150 µmTotal
6Foraminifera, benthicForam benth#/gRisebrobakken, Bjørg>150 µmTotal
7Stainforthia loeblichiS. loeblichi#Risebrobakken, Bjørg>150 µm
8Nonion labradoricumN. labradoricum#Risebrobakken, Bjørg>150 µm
9Melonis barleeanusM. barleeanus#Risebrobakken, Bjørg>150 µm
10Cassidulina neoteretisC. neoteretis#Risebrobakken, Bjørg>150 µm
11Cibicides lobatulusC. lobatulus#Risebrobakken, Bjørg>150 µm
12Oridorsalis umbonatusO. umbonatus#Risebrobakken, Bjørg>150 µm
13Stainforthia loeblichiS. loeblichi#/gRisebrobakken, Bjørg>150 µm
14Nonion labradoricumN. labradoricum#/gRisebrobakken, Bjørg>150 µm
15Melonis barleeanusM. barleeanus#/gRisebrobakken, Bjørg>150 µm
16Cassidulina neoteretisC. neoteretis#/gRisebrobakken, Bjørg>150 µm
17Cibicides lobatulusC. lobatulus#/gRisebrobakken, Bjørg>150 µm
18Oridorsalis umbonatusO. umbonatus#/gRisebrobakken, Bjørg>150 µm
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:
5056 data points

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