Klitgaard-Kristensen, Dorthe; Sejrup, Hans Petter; Haflidason, Haflidi (2001): (Table 2) Age determination of sediments from the Nordic Seas [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.846598, Supplement to: Klitgaard-Kristensen, D et al. (2001): The last 18 kyr fluctuations in Norwegian sea surface conditions and implications for the magnitude of climatic change: Evidence from the North Sea. Paleoceanography, 16(5), 455-467, https://doi.org/10.1029/1999PA000495
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Abstract:
A combined record of three cores spanning the last 18 kyr from the northern North Sea is investigated for content of benthic and planktonic foraminifera and stable oxygen isotopes. The paleoenvironmental development through this time period shows an early deglaciation (18-14.4 ka) and the Younger Dryas (12.7-11.5 ka) characterized by arctic/polar conditions and increased ice rafting in the Norwegian Channel. During the Bølling-Allerød period, warm sea surface temperature (9°C) conditions similar to present conditions are inferred, while bottom waters stayed cold (0-1°C) with normal salinity. The Bølling-Allerød period is interrupted twice at 13.9-13.6 ka (Older Dryas) and at 13.0-12.8 ka (Inter-Allerød Cooling Period) by reductions in sea surface temperatures and increased sea ice cover. The beginning of the Holocene period is marked by increases in surface and bottom water temperature. Superimposed on the broad climatic changes through the Holocene, a series of short-lived oscillations in the ocean circulation are recorded. The amplitude of these Holocene events appears larger in the early Holocene (prior to 8 ka) than compared with the remaining part of the Holocene. This amplification can possibly be attributed to a general increased freshwater budget in the North Atlantic at this time during the final stages of the deglaciation of the Laurentide and Scandinavian ice sheets.
Related to:
Birks, Hilary H; Gulliksen, Steinar; Haflidason, Haflidi; Mangerud, Jan (1996): New radiocarbon dates for the Vedde Ash and the Saksunarvatn Ash from western Norway. Quaternary Research, 45(2), 119-127, https://doi.org/10.1006/qres.1996.0014
Further details:
Haflidason, Haflidi; Sejrup, Hans Petter; Klitgaard-Kristensen, Dorthe; Johnsen, Sigfús Jóhann (1995): Coupled response of the late glacial climatic shifts of northwest Europe reflected in Greenland ice cores: Evidence from the northern North Sea. Geology, 23(12), 1059-1062, https://doi.org/10.1130/0091-7613(1995)023%3C1059:CROTLG%3E2.3.CO;2
Stuiver, Minze; Braziunas, Thomas F (1993): Modelling atmospheric 14C influences and 14C ages of marine samples to 10,000 BC. Radiocarbon, 35(1), 137-189, https://doi.org/10.1017/S0033822200013874
Coverage:
Median Latitude: 60.710000 * Median Longitude: 3.723333 * South-bound Latitude: 60.630000 * West-bound Longitude: 3.716670 * North-bound Latitude: 60.866670 * East-bound Longitude: 3.733330
Minimum DEPTH, sediment/rock: 0.050 m * Maximum DEPTH, sediment/rock: 16.800 m
Event(s):
Comment:
For reservoir correction and calibration of AMS dates older than 10 14C ka, see Haflidason et al. (1995) for more details; for AMS dates younger than 10 14C ka, see Stuiver and Braziunas (1993). Dating of ash layers is from Birks et al. (1996).
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Klitgaard-Kristensen, Dorthe | |||
| 2 | Latitude of event | Latitude | Klitgaard-Kristensen, Dorthe | |||
| 3 | Longitude of event | Longitude | Klitgaard-Kristensen, Dorthe | |||
| 4 | Elevation of event | Elevation | m | Klitgaard-Kristensen, Dorthe | ||
| 5 | DEPTH, sediment/rock | Depth sed | m | Klitgaard-Kristensen, Dorthe | Geocode | |
| 6 | Depth, top/min | Depth top | m | Klitgaard-Kristensen, Dorthe | ||
| 7 | Depth, bottom/max | Depth bot | m | Klitgaard-Kristensen, Dorthe | ||
| 8 | Age, dated material | Dated material | Klitgaard-Kristensen, Dorthe | |||
| 9 | Laboratory code/label | Lab label | Klitgaard-Kristensen, Dorthe | |||
| 10 | Age, dated | Age dated | ka | Klitgaard-Kristensen, Dorthe | Age, 14C AMS | |
| 11 | Age, dated standard deviation | Age dated std dev | ± | Klitgaard-Kristensen, Dorthe | Age, 14C AMS | |
| 12 | Reservoir age | Res age | ka | Klitgaard-Kristensen, Dorthe | Age, 14C calibrated | |
| 13 | Calendar age | Cal age | ka BP | Klitgaard-Kristensen, Dorthe | Age, 14C calibrated |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
145 data points
Data
| 1 Event | 2 Latitude | 3 Longitude | 4 Elevation [m] | 5 Depth sed [m] | 6 Depth top [m] | 7 Depth bot [m] | 8 Dated material | 9 Lab label | 10 Age dated [ka] | 11 Age dated std dev [±] | 12 Res age [ka] | 13 Cal age [ka BP] |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Core_28-03 | 60.8667 | 3.7333 | -345 | 0.050 | Neogloboquadrina pachyderma (r.) | TUa-759 | 0.760 | 0.070 | 0.320 | 0.400 | ||
| Core_28-03 | 60.8667 | 3.7333 | -345 | 1.020 | 1.01 | 1.03 | Neogloboquadrina pachyderma (r.) | TUa-760 | 2.465 | 0.070 | 2.025 | 2.100 |
| Core_28-03 | 60.8667 | 3.7333 | -345 | 1.500 | Neogloboquadrina pachyderma (r.) | TUa-761 | 3.350 | 0.070 | 2.910 | 3.185 | ||
| Core_28-03 | 60.8667 | 3.7333 | -345 | 2.500 | Uvigerina mediterranea | TUa-762 | 5.720 | 0.075 | 5.280 | 6.105 | ||
| Core_28-03 | 60.8667 | 3.7333 | -345 | 3.000 | Uvigerina mediterranea | TUa-1300 | 6.885 | 0.065 | 6.445 | 7.350 | ||
| Core_28-03 | 60.8667 | 3.7333 | -345 | 3.350 | Uvigerina mediterranea | TUa-1301 | 7.755 | 0.065 | 7.315 | 8.170 | ||
| Core_28-03 | 60.8667 | 3.7333 | -345 | 3.500 | Uvigerina mediterranea | TUa-763 | 7.880 | 0.060 | 7.440 | 8.280 | ||
| Core_28-03 | 60.8667 | 3.7333 | -345 | 3.750 | Uvigerina mediterranea | TUa-1302 | 8.495 | 0.070 | 8.055 | 9.080 | ||
| Core_28-03 | 60.8667 | 3.7333 | -345 | 4.665 | 4.65 | 4.68 | Uvigerina mediterranea | TUa-764 | 9.325 | 0.075 | 8.885 | 9.950 |
| Troll_91-1 | 60.6333 | 3.7167 | -320 | 0.580 | Saksunarvatn ash, temphra horizon | 9.000 | 0.060 | 9.000 | ||||
| Troll_91-1 | 60.6333 | 3.7167 | -320 | 0.700 | Uvigerina mediterranea, Cassidulina laevigata | TUa-387 | 9.905 | 0.115 | 9.465 | 10.140 | ||
| Troll_91-1 | 60.6333 | 3.7167 | -320 | 1.770 | Yoldiella lenticula | TUa-349 | 10.835 | 0.115 | 10.035 | 11.560 | ||
| Troll_91-1 | 60.6333 | 3.7167 | -320 | 2.660 | Nonionellina labradorica | TUa-771 | 11.100 | 0.100 | 10.300 | 11.980 | ||
| Troll_91-1 | 60.6333 | 3.7167 | -320 | 2.660 | Vedde Ash, tephra horizon | 10.310 | 0.050 | 10.310 | 11.980 | |||
| Troll_89-3 | 60.6300 | 3.7200 | -320 | 3.200 | Elphidium excavatum | TUa-753 | 11.665 | 0.075 | 10.685 | 12.790 | ||
| Troll_89-3 | 60.6300 | 3.7200 | -320 | 3.900 | Nonionellina labradorica, Cassidulina reniforme | TUa-385 | 11.785 | 0.130 | 10.985 | 12.900 | ||
| Troll_89-3 | 60.6300 | 3.7200 | -320 | 4.600 | Nonionellina labradorica | TUa-754 | 12.305 | 0.125 | 11.505 | 13.410 | ||
| Troll_89-3 | 60.6300 | 3.7200 | -320 | 5.100 | Nonionellina labradorica | TUa-148 | 12.480 | 0.145 | 11.680 | 13.610 | ||
| Troll_89-3 | 60.6300 | 3.7200 | -320 | 10.900 | Yoldiella lenticula | TUa-283 | 13.390 | 0.085 | 12.590 | 14.770 | ||
| Troll_89-3 | 60.6300 | 3.7200 | -320 | 12.900 | Elphidium excavatum | TUa-755 | 13.530 | 0.075 | 12.730 | 14.990 | ||
| Troll_89-3 | 60.6300 | 3.7200 | -320 | 13.900 | Elphidium excavatum, Nonionellina labradorica, Cibicides lobatulus | TUa-460 | 13.700 | 0.140 | 12.900 | 15.270 | ||
| Troll_89-3 | 60.6300 | 3.7200 | -320 | 14.600 | Nonionellina labradorica | TUa-756 | 14.160 | 0.095 | 13.360 | 15.960 | ||
| Troll_89-3 | 60.6300 | 3.7200 | -320 | 15.980 | Nonionellina labradorica, Elphidium asklundi | TUa-147 | 14.505 | 0.170 | 13.705 | 16.420 | ||
| Troll_89-3 | 60.6300 | 3.7200 | -320 | 16.800 | Mixed benthic material | TUa-146 | 15.585 | 0.205 | 14.785 | 17.680 |