Andersson, Carin; Risebrobakken, Bjørg; Jansen, Eystein; Dahl, Svein Olaf (2003): (Table 1) Age control points of sediment cores JM97-948/2A and MD95-2011 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.841543, Supplement to: Andersson, C et al. (2003): Late Holocene surface ocean conditions of the Norwegian Sea (Voring Plateau). Paleoceanography, 18(2), 1044, https://doi.org/10.1029/2001PA000654
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Abstract:
Late Holocene sea surface ocean conditions of the eastern Norwegian Sea (Vøring Plateau) are inferred from planktic stable isotopes and planktic foraminiferal assemblage changes in cores JM97-948/2A and MD95-2011 (66.97°N, 7.64°E). Strong covariance between the planktic stable oxygen isotopic record and abundance changes of N. pachyderma (sin) show that major changes in surface ocean conditions are reflected both in the geochemical composition of the foraminiferal tests as well as in the composition of the foraminiferal fauna. Surface ocean conditions warmer than present were common during the past 3000 years. During the so-called Medieval Warm Period, surface conditions were highly variable with marked changes in sea surface temperature. The warmest sea surface temperatures during this period occurred between 800 and 550 years BP (0 BP = AD 2000). Climatic deterioration, recorded as decreases in sea surface temperature, occurred at about 2750, 1550, 400, and 100 years BP. The cooling events at about 2750 and 1550 years BP appear to correlate with increases in ice-rafted debris in the North Atlantic. Based on the results from JM97-948/2A and MD95-2011, the onset of the Little Ice Age cooling trend seems to have occurred around 700-600 years BP. Faunal changes indicate two cooling events during the Little Ice Age (at 400 and 100 years BP) that correspond to decreases in Fennoscandian summer temperatures and increases in ice-rafted debris in the eastern North Atlantic.
Further details:
Stuiver, Minze; Reimer, Paula J; Bard, Edouard; Beck, J Warren; Burr, George S; Hughen, Konrad A; Kromer, Bernd; McCormac, F Gerry; van der Plicht, Johannes; Spurk, Marco (1998): INTCAL98 radiocarbon age calibration, 24,000-0 cal BP. Radiocarbon, 40(3), 1041-1083, https://doi.org/10.1017/S0033822200019123
Coverage:
Median Latitude: 66.969745 * Median Longitude: 7.639330 * South-bound Latitude: 66.969660 * West-bound Longitude: 7.639330 * North-bound Latitude: 66.969830 * East-bound Longitude: 7.639330
Date/Time Start: 1995-06-08T00:00:00 * Date/Time End: 1995-06-08T00:00:00
Minimum DEPTH, sediment/rock: 0.0025 m * Maximum DEPTH, sediment/rock: 2.6950 m
Event(s):
JM97-948/2A * Latitude: 66.969830 * Longitude: 7.639330 * Elevation: -1048.0 m * Method/Device: Giant box corer (GKG) * Comment: Taken with R/V "Jan Mayen"
MD95-2011 (MD952011) * Latitude: 66.969660 * Longitude: 7.639330 * Date/Time: 1995-06-08T00:00:00 * Elevation: -1048.0 m * Recovery: 17 m * Location: Voring Plateau * Campaign: MD101 (IMAGES I) * Basis: Marion Dufresne (1995) * Method/Device: Calypso Corer (CALYPSO) * Comment: XII Sections, Site location wrong, slumps. Bent core; liner imploded in the middle of the core; 30 cm of sediment of the top recovered in a 1/2 liner
Comment:
AMS dating on the planktonic foraminifer Neogloboquadrina pachyderma (dextral). Radiocarbon ages were calibrated using CALIB 4.3 in conjunction with INTCAL98 (Stuiver et al., 1998). A 400-year correction for the marine reservoir effect was applied. Samples KIA5600 and KIA3927 not used in the age-depth model.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | ||||
| 2 | DEPTH, sediment/rock | Depth sed | m | Geocode | ||
| 3 | Age, dated | Age dated | ka | Andersson, Carin | Age, 14C AMS | |
| 4 | Age, dated standard deviation | Age dated std dev | ± | Andersson, Carin | Age, 14C AMS | |
| 5 | Calendar age | Cal age | ka BP | Andersson, Carin | ||
| 6 | Age, minimum/young | Age min | ka | Andersson, Carin | ||
| 7 | Age, maximum/old | Age max | ka | Andersson, Carin | ||
| 8 | Age, comment | Comm | Andersson, Carin | AMS laboratory number: KIA, Leibniz-Labor for Radiometric Dating and Isotope Research, Kiel; GifA, Centre des Faibles Radioactivités, Gif sur Yvette |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
90 data points
Data
| 1 Event | 2 Depth sed [m] | 3 Age dated [ka] | 4 Age dated std dev [±] | 5 Cal age [ka BP] | 6 Age min [ka] | 7 Age max [ka] | 8 Comm |
|---|---|---|---|---|---|---|---|
| JM97-948/2A | 0.0025 | 0.005 | 210Pb dated | ||||
| JM97-948/2A | 0.0075 | 0.009 | 210Pb dated | ||||
| JM97-948/2A | 0.0125 | 0.015 | 210Pb dated | ||||
| JM97-948/2A | 0.0175 | 0.020 | 210Pb dated | ||||
| JM97-948/2A | 0.0275 | 0.030 | 210Pb dated | ||||
| JM97-948/2A | 0.0375 | 0.040 | 210Pb dated | ||||
| JM97-948/2A | 0.0475 | 0.049 | 210Pb dated | ||||
| JM97-948/2A | 0.0775 | 0.068 | 210Pb dated | ||||
| JM97-948/2A | 0.1025 | 0.079 | 210Pb dated | ||||
| JM97-948/2A | 0.2175 | 0.735 | 0.040 | 0.448 | 0.362 | 0.480 | KIA6285 |
| JM97-948/2A | 0.3075 | 0.940 | 0.040 | 0.549 | 0.558 | 0.601 | KIA4800 |
| MD95-2011 | 0.1050 | 0.980 | 0.060 | 0.601 | 0.568 | 0.675 | GifA96471 |
| MD95-2011 | 0.2450 | 1.590 | 0.040 | 1.209 | 1.150 | 1.237 | KIA5600 |
| MD95-2011 | 0.3050 | 1.040 | 0.040 | 0.675 | 0.614 | 0.695 | KIA3925 |
| MD95-2011 | 0.4750 | 1.160 | 0.030 | 0.739 | 0.716 | 0.772 | KIA5601 |
| MD95-2011 | 0.7050 | 1.460 | 0.050 | 1.037 | 0.993 | 1.103 | KIA3926 |
| MD95-2011 | 0.8950 | 1.590 | 0.030 | 1.209 | 1.169 | 1.227 | KIA6286 |
| MD95-2011 | 1.3050 | 2.350 | 0.040 | 2.012 | 1.965 | 2.052 | KIA3927 |
| MD95-2011 | 1.5400 | 2.335 | 0.025 | 1.992 | 1.965 | 2.047 | KIA6287 |
| MD95-2011 | 1.7050 | 2.620 | 0.060 | 2.359 | 2.322 | 2.392 | GifA96472 |
| MD95-2011 | 2.6950 | 3.820 | 0.035 | 3.813 | 3.748 | 3.870 | KIA10011 |