(Table 2) Age determination of sediment core MD99-2283
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.,...
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Format: | Dataset |
Language: | English |
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PANGAEA
2006
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Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.833945 https://doi.org/10.1594/PANGAEA.833945 |
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.833945 |
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openpolar |
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Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
3Fgif/N Age 14C AMS 14C calibrated comment dated dated material dated standard deviation maximum/old minimum/young Calendar age standard deviation CALYPSO Calypso Corer Depth corrected sediment/rock IMAGES V Interpretation Laboratory code/label Marion Dufresne (1995) MD114 MD99-2283 North Sea Fan Reference/source |
spellingShingle |
3Fgif/N Age 14C AMS 14C calibrated comment dated dated material dated standard deviation maximum/old minimum/young Calendar age standard deviation CALYPSO Calypso Corer Depth corrected sediment/rock IMAGES V Interpretation Laboratory code/label Marion Dufresne (1995) MD114 MD99-2283 North Sea Fan Reference/source Lekens, W Sejrup, Hans Petter Haflidason, Haflidi Knies, Jochen Richter, Thomas (Table 2) Age determination of sediment core MD99-2283 |
topic_facet |
3Fgif/N Age 14C AMS 14C calibrated comment dated dated material dated standard deviation maximum/old minimum/young Calendar age standard deviation CALYPSO Calypso Corer Depth corrected sediment/rock IMAGES V Interpretation Laboratory code/label Marion Dufresne (1995) MD114 MD99-2283 North Sea Fan Reference/source |
description |
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. |
format |
Dataset |
author |
Lekens, W Sejrup, Hans Petter Haflidason, Haflidi Knies, Jochen Richter, Thomas |
author_facet |
Lekens, W Sejrup, Hans Petter Haflidason, Haflidi Knies, Jochen Richter, Thomas |
author_sort |
Lekens, W |
title |
(Table 2) Age determination of sediment core MD99-2283 |
title_short |
(Table 2) Age determination of sediment core MD99-2283 |
title_full |
(Table 2) Age determination of sediment core MD99-2283 |
title_fullStr |
(Table 2) Age determination of sediment core MD99-2283 |
title_full_unstemmed |
(Table 2) Age determination of sediment core MD99-2283 |
title_sort |
(table 2) age determination of sediment core md99-2283 |
publisher |
PANGAEA |
publishDate |
2006 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.833945 https://doi.org/10.1594/PANGAEA.833945 |
op_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 |
long_lat |
ENVELOPE(0.414000,0.414000,62.261167,62.261167) |
genre |
Nordic Seas Norwegian Sea |
genre_facet |
Nordic Seas Norwegian Sea |
op_source |
Supplement to: Lekens, W; Sejrup, Hans Petter; Haflidason, Haflidi; Knies, Jochen; Richter, Thomas (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 |
op_relation |
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 https://doi.pangaea.de/10.1594/PANGAEA.833945 https://doi.org/10.1594/PANGAEA.833945 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.83394510.1029/2005PA00122810.1016/j.epsl.2004.09.018 |
_version_ |
1797587456636223488 |
spelling |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.833945 2024-04-28T08:29:06+00:00 (Table 2) Age determination of sediment core MD99-2283 Lekens, W Sejrup, Hans Petter Haflidason, Haflidi Knies, Jochen Richter, Thomas 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 2006 text/tab-separated-values, 214 data points https://doi.pangaea.de/10.1594/PANGAEA.833945 https://doi.org/10.1594/PANGAEA.833945 en eng PANGAEA 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 https://doi.pangaea.de/10.1594/PANGAEA.833945 https://doi.org/10.1594/PANGAEA.833945 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: Lekens, W; Sejrup, Hans Petter; Haflidason, Haflidi; Knies, Jochen; Richter, Thomas (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 3Fgif/N Age 14C AMS 14C calibrated comment dated dated material dated standard deviation maximum/old minimum/young Calendar age standard deviation CALYPSO Calypso Corer Depth corrected sediment/rock IMAGES V Interpretation Laboratory code/label Marion Dufresne (1995) MD114 MD99-2283 North Sea Fan Reference/source Dataset 2006 ftpangaea https://doi.org/10.1594/PANGAEA.83394510.1029/2005PA00122810.1016/j.epsl.2004.09.018 2024-04-03T14:13:17Z 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. Dataset Nordic Seas Norwegian Sea PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(0.414000,0.414000,62.261167,62.261167) |