Lekens, W; Sejrup, Hans Petter; Haflidason, Haflidi; Knies, Jochen; Richter, Thomas (2006): (Table 2) Age determination of sediment core MD99-2283 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.833945, Supplement to: Lekens, W et al. (2006): Meltwater and ice rafting in the southern Norwegian Sea between 20 and 40 calendar kyr B.P.: Implications for Fennoscandian Heinrich events. Paleoceanography, 21(3), PA3013, https://doi.org/10.1029/2005PA001228
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Abstract:
he timing of meltwater release in the southern Norwegian Sea in relation to millennial-scale climate variability is studied from core MD99-2283 based on down-core analysis of stable oxygen and carbon isotopes, calcium carbonate and ice-rafted debris (IRD). Between 20 and 40 calendar (cal) kyr B.P., strong Dansgaard-Oeschger cyclicity is expressed in increased carbonate content and reduced total organic carbon during warm interstadials and IRD marking the end of cold stadials. The planktonic d18O record of core MD99-2283 compared to available isotopic records in the region confirms the existence of multisourced, synchronized meltwater anomalies during Heinrich (H) events 2 to 4. It was found that the sudden release of meltwater occurs near major ice streams and that no significant increase in IRD was associated with the peaks of the meltwater events in the southern Norwegian Sea, suggesting meltwater discharges from ice-dammed lakes. Significant meltwater events not related to the H events were also observed between 33 and 35 cal kyr B.P., indicating that the release of meltwater is not necessarily connected with major cooling and enhanced IRD delivery. The simultaneous release of fresh water during H events in the Nordic Seas, through icebergs and ice-dammed lakes, is thought to be the result of sea level increase. The meltwater input to the Nordic Seas provides a significant additional contribution to global sea level rise associated with H3 and H4.
Further details:
Guillou, H; Singer, Brad S; Laj, Carlo E; Kissel, Catherine; Scaillet, Stéphane; Jicha, Brian R (2004): On the age of the Laschamp geomagnetic excursion. Earth and Planetary Science Letters, 227(3-4), 331-343, https://doi.org/10.1016/j.epsl.2004.09.018
Sarnthein, Michael; Stattegger, Karl; Dreger, Derek; Erlenkeuser, Helmut; Grootes, Pieter Meiert; Haupt, Bernd Joachim; Jung, Simon J A; Kiefer, Thorsten; Kuhnt, Wolfgang; Pflaumann, Uwe; Schäfer-Neth, Christian; Schulz, Hartmut; Schulz, Michael; Seidov, Dan; Simstich, Johannes; van Kreveld, Shirley A; Vogelsang, Elke; Voelker, Antje H L; Weinelt, Mara (2001): Fundamental modes and abrupt changes in North Atlantic circulation and climate over the last 60 ky - concepts, reconstruction and numerical modeling. In: Schäfer, W; Ritzrau, M; Schlüter & J. Thiede (eds.) The Northern North Atlantic: A Changing Environment, Springer Verlag, Berlin, 500 pp, 365-410, https://doi.org/10.1007/978-3-642-56876-3_21
Coverage:
Latitude: 62.261167 * Longitude: 0.414000
Date/Time Start: 1999-08-01T00:00:00 * Date/Time End: 1999-08-01T00:00:00
Minimum DEPTH, sediment/rock: 0.45 m * Maximum DEPTH, sediment/rock: 14.17 m
Event(s):
MD99-2283 (3Fgif/N) * Latitude: 62.261167 * Longitude: 0.414000 * Date/Time: 1999-08-01T00:00:00 * Elevation: -707.0 m * Recovery: 27.505 m * Location: North Sea Fan * Campaign: MD114 (IMAGES V) * Basis: Marion Dufresne (1995) * Method/Device: Calypso Corer (CALYPSO)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DEPTH, sediment/rock | Depth sed | m | Geocode | ||
| 2 | Depth, corrected | Depth corr | m | Lekens, W | ||
| 3 | Age, dated material | Dated material | Lekens, W | |||
| 4 | Age, comment | Comm | Lekens, W | proxy | ||
| 5 | Laboratory code/label | Lab label | Lekens, W | |||
| 6 | Interpretation | Interpretation | Lekens, W | |||
| 7 | Age, dated | Age dated | ka | Lekens, W | Age, 14C AMS | |
| 8 | Age, dated standard deviation | Age dated std dev | ± | Lekens, W | Age, 14C AMS | |
| 9 | Age, minimum/young | Age min | ka | Lekens, W | ||
| 10 | Age, maximum/old | Age max | ka | Lekens, W | ||
| 11 | Calendar age | Cal age | ka BP | Lekens, W | Age, 14C calibrated | |
| 12 | Age, maximum/old | Age max | ka | Lekens, W | Age, 14C calibrated | Cal ka BP |
| 13 | Calendar age, standard deviation | Cal age std dev | ± | Lekens, W | Age, 14C calibrated | |
| 14 | Reference/source | Reference | Lekens, W |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
214 data points