Clay mineralogy of sediment cores from the Arctic Ocean
This study focuses on sedimentological investigations of sediment cores recovered during the international Arctic'91, expeditions with the German research ice breaker RV “Polarstern” to the European sector of the Arctic Ocean. Here, we deduce the last glacial/interglacial changes in transport m...
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Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.695350 https://doi.org/10.1594/PANGAEA.695350 |
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.695350 2023-05-15T13:22:46+02:00 Clay mineralogy of sediment cores from the Arctic Ocean Vogt, Christoph Knies, Jochen MEDIAN LATITUDE: 87.003441 * MEDIAN LONGITUDE: 78.392707 * SOUTH-BOUND LATITUDE: 81.755300 * WEST-BOUND LONGITUDE: 0.000000 * NORTH-BOUND LATITUDE: 90.000000 * EAST-BOUND LONGITUDE: 159.167500 * DATE/TIME START: 1991-08-06T00:00:00 * DATE/TIME END: 1991-09-10T00:00:00 2008-06-04 application/zip, 27 datasets https://doi.pangaea.de/10.1594/PANGAEA.695350 https://doi.org/10.1594/PANGAEA.695350 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.695350 https://doi.org/10.1594/PANGAEA.695350 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Vogt, Christoph; Knies, Jochen (2008): Sediment dynamics in the Eurasian Arctic Ocean during the last deglaciation - The clay mineral group smectite perspective. Marine Geology, 250(3-4), 211-222, https://doi.org/10.1016/j.margeo.2008.01.006 Amundsen Basin ARK-VIII/3 AWI_Paleo Gakkel Ridge Arctic Ocean Giant box corer GKG Lomonosov Ridge Makarov Basin MUC MultiCorer Nansen Basin Paleoenvironmental Reconstructions from Marine Sediments @ AWI Polarstern PS19/150 PS19/151 PS19/152 PS19/153 PS19/154 PS19/155 PS19/157 PS19/159 PS19/161 PS19/165 PS19/166 PS19/167 PS19/171 PS19/172 PS19/175 PS19/176 PS19/178 PS19/181 PS19/185 PS19/186 PS19/189 PS19/190 PS19/192 PS19/194 PS19/196 PS19/198 PS19/200 PS19 ARCTIC91 PS2157-3 PS2158-1 PS2159-3 PS2160-3 PS2161-1 PS2162-1 PS2163-1 Dataset 2008 ftpangaea https://doi.org/10.1594/PANGAEA.695350 https://doi.org/10.1016/j.margeo.2008.01.006 2023-01-20T07:31:11Z This study focuses on sedimentological investigations of sediment cores recovered during the international Arctic'91, expeditions with the German research ice breaker RV “Polarstern” to the European sector of the Arctic Ocean. Here, we deduce the last glacial/interglacial changes in transport mechanism and sedimentation from the clay mineral group smectite. We choose the smectites as an example of how sediment mineralogy can be linked with particular source regions (the Kara and Laptev seas), distinct transport mechanism (sea ice and surface currents) and sedimentation processes. Smectite contents in Arctic sediments discussed for two time slices, including the Last Glacial Maximum (LGM), and the last deglaciation (Termination I), reveal the highest variability subsequent to the retreat of the Eurasian ice sheets. Our results show that smectite anomalies in the Eurasian Basin are associated with distinct meltwater pulses and occurred around 13.5-13.0 14C ka B.P. Compelling evidence is provided that these anomalies are deduced from sea-ice entrained sediments from the eastern Kara Sea that entered the Arctic Ocean after ice-sheet break-up and eventually flooding of the Kara Sea. We propose that smectite anomalies in sediments of the eastern Arctic Ocean can be utilized to identify deglacial events and to help decipher configurations of the Eurasian ice sheets. The identification of smectite maxima along the modern sea-ice edge in the Eurasian Basin further indicates biologically enhanced sedimentation from melting sea ice allowing the reconstruction of seasonally open water in the region. Hence, considering the poor preservation conditions of primary paleoceanographic proxies in the Arctic Ocean, the clay mineral contents, particularly the smectite group, may be one alternative tool for paleoclimatic reconstruction in the Eurasian Basin. Dataset amundsen basin Arctic Arctic Arctic Ocean Ice Sheet Kara Sea laptev Lomonosov Ridge makarov basin Nansen Nansen Basin Sea ice PANGAEA - Data Publisher for Earth & Environmental Science Amundsen Basin ENVELOPE(74.000,74.000,87.000,87.000) Arctic Arctic Ocean Breaker ENVELOPE(-67.257,-67.257,-67.874,-67.874) Gakkel Ridge ENVELOPE(90.000,90.000,87.000,87.000) Kara Sea Makarov Basin ENVELOPE(170.000,170.000,87.000,87.000) ENVELOPE(0.000000,159.167500,90.000000,81.755300) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Amundsen Basin ARK-VIII/3 AWI_Paleo Gakkel Ridge Arctic Ocean Giant box corer GKG Lomonosov Ridge Makarov Basin MUC MultiCorer Nansen Basin Paleoenvironmental Reconstructions from Marine Sediments @ AWI Polarstern PS19/150 PS19/151 PS19/152 PS19/153 PS19/154 PS19/155 PS19/157 PS19/159 PS19/161 PS19/165 PS19/166 PS19/167 PS19/171 PS19/172 PS19/175 PS19/176 PS19/178 PS19/181 PS19/185 PS19/186 PS19/189 PS19/190 PS19/192 PS19/194 PS19/196 PS19/198 PS19/200 PS19 ARCTIC91 PS2157-3 PS2158-1 PS2159-3 PS2160-3 PS2161-1 PS2162-1 PS2163-1 |
spellingShingle |
Amundsen Basin ARK-VIII/3 AWI_Paleo Gakkel Ridge Arctic Ocean Giant box corer GKG Lomonosov Ridge Makarov Basin MUC MultiCorer Nansen Basin Paleoenvironmental Reconstructions from Marine Sediments @ AWI Polarstern PS19/150 PS19/151 PS19/152 PS19/153 PS19/154 PS19/155 PS19/157 PS19/159 PS19/161 PS19/165 PS19/166 PS19/167 PS19/171 PS19/172 PS19/175 PS19/176 PS19/178 PS19/181 PS19/185 PS19/186 PS19/189 PS19/190 PS19/192 PS19/194 PS19/196 PS19/198 PS19/200 PS19 ARCTIC91 PS2157-3 PS2158-1 PS2159-3 PS2160-3 PS2161-1 PS2162-1 PS2163-1 Vogt, Christoph Knies, Jochen Clay mineralogy of sediment cores from the Arctic Ocean |
topic_facet |
Amundsen Basin ARK-VIII/3 AWI_Paleo Gakkel Ridge Arctic Ocean Giant box corer GKG Lomonosov Ridge Makarov Basin MUC MultiCorer Nansen Basin Paleoenvironmental Reconstructions from Marine Sediments @ AWI Polarstern PS19/150 PS19/151 PS19/152 PS19/153 PS19/154 PS19/155 PS19/157 PS19/159 PS19/161 PS19/165 PS19/166 PS19/167 PS19/171 PS19/172 PS19/175 PS19/176 PS19/178 PS19/181 PS19/185 PS19/186 PS19/189 PS19/190 PS19/192 PS19/194 PS19/196 PS19/198 PS19/200 PS19 ARCTIC91 PS2157-3 PS2158-1 PS2159-3 PS2160-3 PS2161-1 PS2162-1 PS2163-1 |
description |
This study focuses on sedimentological investigations of sediment cores recovered during the international Arctic'91, expeditions with the German research ice breaker RV “Polarstern” to the European sector of the Arctic Ocean. Here, we deduce the last glacial/interglacial changes in transport mechanism and sedimentation from the clay mineral group smectite. We choose the smectites as an example of how sediment mineralogy can be linked with particular source regions (the Kara and Laptev seas), distinct transport mechanism (sea ice and surface currents) and sedimentation processes. Smectite contents in Arctic sediments discussed for two time slices, including the Last Glacial Maximum (LGM), and the last deglaciation (Termination I), reveal the highest variability subsequent to the retreat of the Eurasian ice sheets. Our results show that smectite anomalies in the Eurasian Basin are associated with distinct meltwater pulses and occurred around 13.5-13.0 14C ka B.P. Compelling evidence is provided that these anomalies are deduced from sea-ice entrained sediments from the eastern Kara Sea that entered the Arctic Ocean after ice-sheet break-up and eventually flooding of the Kara Sea. We propose that smectite anomalies in sediments of the eastern Arctic Ocean can be utilized to identify deglacial events and to help decipher configurations of the Eurasian ice sheets. The identification of smectite maxima along the modern sea-ice edge in the Eurasian Basin further indicates biologically enhanced sedimentation from melting sea ice allowing the reconstruction of seasonally open water in the region. Hence, considering the poor preservation conditions of primary paleoceanographic proxies in the Arctic Ocean, the clay mineral contents, particularly the smectite group, may be one alternative tool for paleoclimatic reconstruction in the Eurasian Basin. |
format |
Dataset |
author |
Vogt, Christoph Knies, Jochen |
author_facet |
Vogt, Christoph Knies, Jochen |
author_sort |
Vogt, Christoph |
title |
Clay mineralogy of sediment cores from the Arctic Ocean |
title_short |
Clay mineralogy of sediment cores from the Arctic Ocean |
title_full |
Clay mineralogy of sediment cores from the Arctic Ocean |
title_fullStr |
Clay mineralogy of sediment cores from the Arctic Ocean |
title_full_unstemmed |
Clay mineralogy of sediment cores from the Arctic Ocean |
title_sort |
clay mineralogy of sediment cores from the arctic ocean |
publisher |
PANGAEA |
publishDate |
2008 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.695350 https://doi.org/10.1594/PANGAEA.695350 |
op_coverage |
MEDIAN LATITUDE: 87.003441 * MEDIAN LONGITUDE: 78.392707 * SOUTH-BOUND LATITUDE: 81.755300 * WEST-BOUND LONGITUDE: 0.000000 * NORTH-BOUND LATITUDE: 90.000000 * EAST-BOUND LONGITUDE: 159.167500 * DATE/TIME START: 1991-08-06T00:00:00 * DATE/TIME END: 1991-09-10T00:00:00 |
long_lat |
ENVELOPE(74.000,74.000,87.000,87.000) ENVELOPE(-67.257,-67.257,-67.874,-67.874) ENVELOPE(90.000,90.000,87.000,87.000) ENVELOPE(170.000,170.000,87.000,87.000) ENVELOPE(0.000000,159.167500,90.000000,81.755300) |
geographic |
Amundsen Basin Arctic Arctic Ocean Breaker Gakkel Ridge Kara Sea Makarov Basin |
geographic_facet |
Amundsen Basin Arctic Arctic Ocean Breaker Gakkel Ridge Kara Sea Makarov Basin |
genre |
amundsen basin Arctic Arctic Arctic Ocean Ice Sheet Kara Sea laptev Lomonosov Ridge makarov basin Nansen Nansen Basin Sea ice |
genre_facet |
amundsen basin Arctic Arctic Arctic Ocean Ice Sheet Kara Sea laptev Lomonosov Ridge makarov basin Nansen Nansen Basin Sea ice |
op_source |
Supplement to: Vogt, Christoph; Knies, Jochen (2008): Sediment dynamics in the Eurasian Arctic Ocean during the last deglaciation - The clay mineral group smectite perspective. Marine Geology, 250(3-4), 211-222, https://doi.org/10.1016/j.margeo.2008.01.006 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.695350 https://doi.org/10.1594/PANGAEA.695350 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.695350 https://doi.org/10.1016/j.margeo.2008.01.006 |
_version_ |
1766366854760103936 |