Lithology, micropaleontology and isotope record of sediments from the Nordic Seas, supplement to: Bauch, Henning A; Erlenkeuser, Helmut; Spielhagen, Robert F; Struck, Ulrich; Matthiessen, Jens; Thiede, Jörn; Heinemeier, Jan (2001): A multiproxy reconstruction of the evolution of deep and surface waters in the subarctic Nordic seas over the last 30,000 years. Quaternary Science Reviews, 20(4), 659-678
On the basis of various lithological, mircopaleontological and isotopic proxy records covering the last 30,000 calendar years (cal kyr) the paleoenvironmental evolution of the deep and surface water circulation in the subarctic Nordic seas was reconstructed for a climate interval characterized by in...
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ftdatacite:10.1594/pangaea.735161 2023-05-15T15:19:24+02:00 Lithology, micropaleontology and isotope record of sediments from the Nordic Seas, supplement to: Bauch, Henning A; Erlenkeuser, Helmut; Spielhagen, Robert F; Struck, Ulrich; Matthiessen, Jens; Thiede, Jörn; Heinemeier, Jan (2001): A multiproxy reconstruction of the evolution of deep and surface waters in the subarctic Nordic seas over the last 30,000 years. Quaternary Science Reviews, 20(4), 659-678 Bauch, Henning A Erlenkeuser, Helmut Spielhagen, Robert F Struck, Ulrich Matthiessen, Jens Thiede, Jörn Heinemeier, Jan 2001 application/zip https://dx.doi.org/10.1594/pangaea.735161 https://doi.pangaea.de/10.1594/PANGAEA.735161 en eng PANGAEA - Data Publisher for Earth & Environmental Science https://dx.doi.org/10.1016/s0277-3791(00)00098-6 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 CC-BY GLAMAP Giant box corer Gravity corer Kiel type ARK-II/4 ARK-II/5 Polarstern Helmholtz Centre for Ocean Research Kiel GEOMAR Collection article Supplementary Collection of Datasets 2001 ftdatacite https://doi.org/10.1594/pangaea.735161 https://doi.org/10.1016/s0277-3791(00)00098-6 2021-11-05T12:55:41Z On the basis of various lithological, mircopaleontological and isotopic proxy records covering the last 30,000 calendar years (cal kyr) the paleoenvironmental evolution of the deep and surface water circulation in the subarctic Nordic seas was reconstructed for a climate interval characterized by intensive ice-sheet growth and subsequent decay on the surrounding land masses. The data reveal considerable temporal changes in the type of thermohaline circulation. Open-water convection prevailed in the early record, providing moisture for the Fennoscandian-Barents ice sheets to grow until they reached the shelf break at ~26 cal. kyr and started to deliver high amounts of ice-rafted debris (IRD) into the ocean via melting icebergs. Low epibenthic delta18O values and small-sized subpolar foraminifera observed after 26 cal. kyr may implicate that advection of Atlantic water into the Nordic seas occurred at the subsurface until 15 cal. kyr. Although modern-like surface and deep-water conditions first developed at ~13.5 cal. kyr, thermohaline circulation remained unstable, switching between a subsurface and surface advection of Atlantic water until 10 cal. kyr when IRD deposition and major input of meltwater ceased. During this time, two depletions in epibenthic delta13C are recognized just before and after the Younger Dryas indicating a notable reduction in convectional processes. Despite an intermittent cooling at ~8 cal. kyr, warmest surface conditions existed in the central Nordic seas between 10 and 6 cal. kyr. However, already after 7 cal. kyr the present day situation gradually evolved, verified by a strong water mass exchange with the Arctic Ocean and an intensifying deep convection as well as surface temperature decrease in the central Nordic seas. This process led to the development of the modern distribution of water masses and associated oceanographic fronts after 5 cal. kyr and, eventually, to today's steep east-west surface temperature gradient. The time discrepancy between intensive vertical convection after 5 cal. kyr but warmest surface temperatures already between 10 and 6 cal. kyr strongly implicates that widespread postglacial surface warming in the Nordic seas was not directly linked to the rates in deep-water formation. Article in Journal/Newspaper Arctic Arctic Ocean Fennoscandian Foraminifera* Ice Sheet Iceberg* Nordic Seas Subarctic DataCite Metadata Store (German National Library of Science and Technology) Arctic Arctic Ocean |
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Open Polar |
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DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
GLAMAP Giant box corer Gravity corer Kiel type ARK-II/4 ARK-II/5 Polarstern Helmholtz Centre for Ocean Research Kiel GEOMAR |
spellingShingle |
GLAMAP Giant box corer Gravity corer Kiel type ARK-II/4 ARK-II/5 Polarstern Helmholtz Centre for Ocean Research Kiel GEOMAR Bauch, Henning A Erlenkeuser, Helmut Spielhagen, Robert F Struck, Ulrich Matthiessen, Jens Thiede, Jörn Heinemeier, Jan Lithology, micropaleontology and isotope record of sediments from the Nordic Seas, supplement to: Bauch, Henning A; Erlenkeuser, Helmut; Spielhagen, Robert F; Struck, Ulrich; Matthiessen, Jens; Thiede, Jörn; Heinemeier, Jan (2001): A multiproxy reconstruction of the evolution of deep and surface waters in the subarctic Nordic seas over the last 30,000 years. Quaternary Science Reviews, 20(4), 659-678 |
topic_facet |
GLAMAP Giant box corer Gravity corer Kiel type ARK-II/4 ARK-II/5 Polarstern Helmholtz Centre for Ocean Research Kiel GEOMAR |
description |
On the basis of various lithological, mircopaleontological and isotopic proxy records covering the last 30,000 calendar years (cal kyr) the paleoenvironmental evolution of the deep and surface water circulation in the subarctic Nordic seas was reconstructed for a climate interval characterized by intensive ice-sheet growth and subsequent decay on the surrounding land masses. The data reveal considerable temporal changes in the type of thermohaline circulation. Open-water convection prevailed in the early record, providing moisture for the Fennoscandian-Barents ice sheets to grow until they reached the shelf break at ~26 cal. kyr and started to deliver high amounts of ice-rafted debris (IRD) into the ocean via melting icebergs. Low epibenthic delta18O values and small-sized subpolar foraminifera observed after 26 cal. kyr may implicate that advection of Atlantic water into the Nordic seas occurred at the subsurface until 15 cal. kyr. Although modern-like surface and deep-water conditions first developed at ~13.5 cal. kyr, thermohaline circulation remained unstable, switching between a subsurface and surface advection of Atlantic water until 10 cal. kyr when IRD deposition and major input of meltwater ceased. During this time, two depletions in epibenthic delta13C are recognized just before and after the Younger Dryas indicating a notable reduction in convectional processes. Despite an intermittent cooling at ~8 cal. kyr, warmest surface conditions existed in the central Nordic seas between 10 and 6 cal. kyr. However, already after 7 cal. kyr the present day situation gradually evolved, verified by a strong water mass exchange with the Arctic Ocean and an intensifying deep convection as well as surface temperature decrease in the central Nordic seas. This process led to the development of the modern distribution of water masses and associated oceanographic fronts after 5 cal. kyr and, eventually, to today's steep east-west surface temperature gradient. The time discrepancy between intensive vertical convection after 5 cal. kyr but warmest surface temperatures already between 10 and 6 cal. kyr strongly implicates that widespread postglacial surface warming in the Nordic seas was not directly linked to the rates in deep-water formation. |
format |
Article in Journal/Newspaper |
author |
Bauch, Henning A Erlenkeuser, Helmut Spielhagen, Robert F Struck, Ulrich Matthiessen, Jens Thiede, Jörn Heinemeier, Jan |
author_facet |
Bauch, Henning A Erlenkeuser, Helmut Spielhagen, Robert F Struck, Ulrich Matthiessen, Jens Thiede, Jörn Heinemeier, Jan |
author_sort |
Bauch, Henning A |
title |
Lithology, micropaleontology and isotope record of sediments from the Nordic Seas, supplement to: Bauch, Henning A; Erlenkeuser, Helmut; Spielhagen, Robert F; Struck, Ulrich; Matthiessen, Jens; Thiede, Jörn; Heinemeier, Jan (2001): A multiproxy reconstruction of the evolution of deep and surface waters in the subarctic Nordic seas over the last 30,000 years. Quaternary Science Reviews, 20(4), 659-678 |
title_short |
Lithology, micropaleontology and isotope record of sediments from the Nordic Seas, supplement to: Bauch, Henning A; Erlenkeuser, Helmut; Spielhagen, Robert F; Struck, Ulrich; Matthiessen, Jens; Thiede, Jörn; Heinemeier, Jan (2001): A multiproxy reconstruction of the evolution of deep and surface waters in the subarctic Nordic seas over the last 30,000 years. Quaternary Science Reviews, 20(4), 659-678 |
title_full |
Lithology, micropaleontology and isotope record of sediments from the Nordic Seas, supplement to: Bauch, Henning A; Erlenkeuser, Helmut; Spielhagen, Robert F; Struck, Ulrich; Matthiessen, Jens; Thiede, Jörn; Heinemeier, Jan (2001): A multiproxy reconstruction of the evolution of deep and surface waters in the subarctic Nordic seas over the last 30,000 years. Quaternary Science Reviews, 20(4), 659-678 |
title_fullStr |
Lithology, micropaleontology and isotope record of sediments from the Nordic Seas, supplement to: Bauch, Henning A; Erlenkeuser, Helmut; Spielhagen, Robert F; Struck, Ulrich; Matthiessen, Jens; Thiede, Jörn; Heinemeier, Jan (2001): A multiproxy reconstruction of the evolution of deep and surface waters in the subarctic Nordic seas over the last 30,000 years. Quaternary Science Reviews, 20(4), 659-678 |
title_full_unstemmed |
Lithology, micropaleontology and isotope record of sediments from the Nordic Seas, supplement to: Bauch, Henning A; Erlenkeuser, Helmut; Spielhagen, Robert F; Struck, Ulrich; Matthiessen, Jens; Thiede, Jörn; Heinemeier, Jan (2001): A multiproxy reconstruction of the evolution of deep and surface waters in the subarctic Nordic seas over the last 30,000 years. Quaternary Science Reviews, 20(4), 659-678 |
title_sort |
lithology, micropaleontology and isotope record of sediments from the nordic seas, supplement to: bauch, henning a; erlenkeuser, helmut; spielhagen, robert f; struck, ulrich; matthiessen, jens; thiede, jörn; heinemeier, jan (2001): a multiproxy reconstruction of the evolution of deep and surface waters in the subarctic nordic seas over the last 30,000 years. quaternary science reviews, 20(4), 659-678 |
publisher |
PANGAEA - Data Publisher for Earth & Environmental Science |
publishDate |
2001 |
url |
https://dx.doi.org/10.1594/pangaea.735161 https://doi.pangaea.de/10.1594/PANGAEA.735161 |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Ocean Fennoscandian Foraminifera* Ice Sheet Iceberg* Nordic Seas Subarctic |
genre_facet |
Arctic Arctic Ocean Fennoscandian Foraminifera* Ice Sheet Iceberg* Nordic Seas Subarctic |
op_relation |
https://dx.doi.org/10.1016/s0277-3791(00)00098-6 |
op_rights |
Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/pangaea.735161 https://doi.org/10.1016/s0277-3791(00)00098-6 |
_version_ |
1766349587407175680 |