Andersen, Catherine; Koç, Nalân; Jennings, Anne E; Andrews, John T (2004): (Table 1) Age determination of North Atlantic sediment cores [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.839405, Supplement to: Andersen, C et al. (2004): Nonuniform response of the major surface currents in the Nordic Seas to insolation forcing: Implications for the Holocene climate variability. Paleoceanography, 19(2), PA2003, https://doi.org/10.1029/2002PA000873
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Abstract:
High-resolution sediment cores from the Vøring Plateau, the North Iceland shelf, and the East Greenland shelf have been studied to investigate the stability of major surface currents in the Nordic Seas during the Holocene. Results from diatom assemblages and reconstructed sea-surface temperatures (SSTs) indicate a division of the Holocene into three periods: the Holocene Climate Optimum (9500-6500 calendar (cal) years BP), the Holocene Transition Period (6500-3000 cal years BP) and the Cool Late Holocene Period (3000-0 cal years BP). The overall climate development is in step with the decreasing insolation on the Northern Hemisphere, but regional differences occur regarding both timing and magnitude of SST changes. Sites under the direct influence of the Norwegian Atlantic Current and the Irminger Current indicate SST cooling of 4-5°C from early Holocene to present, compared to 2°C recorded under the East Greenland Current. Superimposed on the general Holocene cooling trend, there is a high-frequency SST variability, which is in the order of 1-1.5°C for the Vøring Plateau and the East Greenland shelf and 2.5-3°C on the North Iceland shelf.
Further details:
Groenvold, K; Oskarsson, N; Johnsen, Sigfús Jóhann; Clausen, Henrik Brink; Hammer, C U; Bond, Gerard C; Bard, Edouard (1995): Ash layers from Iceland in the Greenland GRIP ice core correlated with oceanic and land sediments. Earth and Planetary Science Letters, 135(1-4), 149-155, https://doi.org/10.1016/0012-821X(95)00145-3
Coverage:
Median Latitude: 66.961305 * Median Longitude: -13.457761 * South-bound Latitude: 66.641333 * West-bound Longitude: -30.904300 * North-bound Latitude: 67.125700 * East-bound Longitude: 7.639330
Date/Time Start: 1995-06-08T00:00:00 * Date/Time End: 1999-08-01T00:00:00
Minimum DEPTH, sediment/rock: 0.0025 m * Maximum DEPTH, sediment/rock: 25.3200 m
Event(s):
BS88/6_5 * Latitude: 67.125700 * Longitude: -30.904300 * Elevation: -707.0 m * Recovery: 0.75 m * Method/Device: Gravity corer (GC)
HU93030-019 * Latitude: 67.100000 * Longitude: -30.800000 * Elevation: -713.0 m * Recovery: 0.6 m * Campaign: HUD93/30 * Basis: Hudson * Method/Device: Box corer (BC)
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"
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | ||||
| 2 | Latitude of event | Latitude | ||||
| 3 | Longitude of event | Longitude | ||||
| 4 | Elevation of event | Elevation | m | |||
| 5 | DEPTH, sediment/rock | Depth sed | m | Geocode | ||
| 6 | Laboratory code/label | Lab label | Andersen, Catherine | AA = University of Arizona AMS Facility, CURL = INSTAAR-University of Colorado, KIA = Labor for Radiometric Dating and Isotope Research, Kiel, GifA = Centre des Faibles Radioactivite's-Gif sur Yvette, SIO = Skidaway Institute of Oceanography-Georgia, RNL = Risø National Laboratory | ||
| 7 | Age, dated material | Dated material | Andersen, Catherine | |||
| 8 | Age, comment | Comm | Andersen, Catherine | |||
| 9 | Age, dated | Age dated | ka | Andersen, Catherine | Age, 14C AMS | |
| 10 | Age, dated standard deviation | Age dated std dev | ± | Andersen, Catherine | Age, 14C AMS | |
| 11 | Calendar age | Cal age | ka BP | Andersen, Catherine | Age, 14C calibrated | |
| 12 | Comment | Comment | Andersen, Catherine |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
192 data points