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Aagaard-Sørensen, Steffen; Husum, Katrine; Hald, Morten; Knies, Jochen (2010): (Table 1) Radiocarbon dates of core JM05-085-GC, South-Barents Sea [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.805692, Supplement to: Aagaard-Sørensen, S et al. (2010): Paleoceanographic development in the SW Barents Sea during the Late Weichselian-Early Holocene transition. Quaternary Science Reviews, 29(25-26), 3442-3456, https://doi.org/10.1016/j.quascirev.2010.08.014

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Abstract:
The Late Weichselian-Early Holocene variability of the North Atlantic Current has been studied with focus on the zonal component of this meridional transport during the transition from glacial to interglacial conditions. The investigated sediment core is from 409 m water depth in the SW Barents Sea. Eight Accelerator mass spectrometry (AMS) 14C dates show that the core covers the last 20,000 cal yr B.P. with a centennial scale resolution during Late Weichselian-Early Holocene. Planktic foraminiferal assemblages were analyzed using the >100 ?m size fraction and foraminiferal planktic and benthic d13C and d18O isotopes were measured. Furthermore, a range of physical and chemical analyses has been carried out on the bulk sediment samples. Four time periods have been identified which represent the varying oceanographic conditions in Ingøydjupet, a glacial trough located off the north coast of Norway in the SW Barents Sea. 1) The late glacial (before ca 15,000 cal yr B.P.) influenced by the nearby ice sheets with high amounts of sea ice- or iceberg-transported detritus. 2) The late Oldest Dryas stadial and the Bølling-Allerød interstadial (ca 15,000-12,700 cal yr B.P.) with cold surface water conditions influenced by the collapse of the nearby ice sheets, high amounts of sea ice- or iceberg-transported detritus and melt water and weak subsurface inflow of Atlantic Water. 3) The Younger Dryas cold stadial (12,700-11,650 cal yr B.P.) with low primary productivity and extensive sea ice cover and 4) The Preboreal and Early Holocene (11,650-6800 cal yr B.P. cal yr B.P.) with strong influx of Atlantic Water into the area, near absence of ice rafted debris and generally ameliorated conditions in both surface and bottom water masses as seen from a high flux of foraminifera and increased marine primary production.
Coverage:
Latitude: 71.621800 * Longitude: 22.926100
Date/Time Start: 2005-02-01T00:00:00 * Date/Time End: 2005-02-01T00:00:00
Minimum DEPTH, sediment/rock: 0.100 m * Maximum DEPTH, sediment/rock: 3.715 m
Event(s):
JM05-085-GC * Latitude: 71.621800 * Longitude: 22.926100 * Date/Time: 2005-02-01T00:00:00 * Elevation: -409.0 m * Recovery: 4.87 m * Location: Barents Sea * Method/Device: Gravity corer (GC) * Comment: R/V Jan Mayen
Comment:
A standard reservoir correction of ca 400 years with an additional reservoir correction DeltaR = 67 +/- 41 was used. Data extracted in the frame of a joint ICSTI/PANGAEA IPY effort, see http://doi.pangaea.de/10.1594/PANGAEA.150150
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1Sample IDSample IDAagaard-Sørensen, Steffen
2Depth, top/minDepth topmAagaard-Sørensen, Steffen
3Depth, bottom/maxDepth botmAagaard-Sørensen, Steffen
4DEPTH, sediment/rockDepth sedmGeocode
5Age, dated materialDated materialAagaard-Sørensen, Steffen
6Age, datedAge datedkaAagaard-Sørensen, SteffenAge, 14C AMS
7Age, dated standard deviationAge dated std dev±Aagaard-Sørensen, SteffenAge, 14C AMS
8Calendar ageCal ageka BPAagaard-Sørensen, SteffenAge, 14C calibrated
9Calendar age, standard deviationCal age std dev±Aagaard-Sørensen, SteffenAge, 14C calibrated
10Age, minimum/youngAge minkaAagaard-Sørensen, SteffenAge, 14C calibrated2 sigma
11Age, maximum/oldAge maxkaAagaard-Sørensen, SteffenAge, 14C calibrated2 sigma
12Reservoir effect/correctionRes effectaAagaard-Sørensen, Steffen
13Standard deviationStd dev±Aagaard-Sørensen, SteffenRes effect
14δ13Cδ13C‰ PDBAagaard-Sørensen, SteffenMass spectrometer Finnigan MAT 251#1 = assumed standard d13C value
15δ13C, standard deviationδ13C std dev±Aagaard-Sørensen, SteffenMass spectrometer Finnigan MAT 251
Size:
104 data points

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