Nordic Seas surface ice drift reconstructions: evidence from ice rafted coal fragments during oxygen isotope stage 6
Sixteen long sediment cores from the eastern Arctic Ocean, the Fram Strait and the Norwegian-Greenland Sea, documenting 200 000 years of sedimentation, were studied for their qualitative dropstone composition (>500 µm-fraction). In sediments from oxygen isotope stages 1–5, coal particles are usua...
Published in: | Geological Society, London, Special Publications |
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1990
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Online Access: | https://oceanrep.geomar.de/id/eprint/46633/ https://oceanrep.geomar.de/id/eprint/46633/1/Bischof%20et.al.pdf https://doi.org/10.1144/GSL.SP.1990.053.01.13 |
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ftoceanrep:oai:oceanrep.geomar.de:46633 2023-05-15T14:49:32+02:00 Nordic Seas surface ice drift reconstructions: evidence from ice rafted coal fragments during oxygen isotope stage 6 Bischof, Jens Koch, Joachim Kubisch, Michaela Spielhagen, Robert F. Thiede, Jörn Dowdeswell, J. A. Scourse, J. D. 1990 text https://oceanrep.geomar.de/id/eprint/46633/ https://oceanrep.geomar.de/id/eprint/46633/1/Bischof%20et.al.pdf https://doi.org/10.1144/GSL.SP.1990.053.01.13 en eng GSL (Geological Society London) https://oceanrep.geomar.de/id/eprint/46633/1/Bischof%20et.al.pdf Bischof, J., Koch, J., Kubisch, M., Spielhagen, R. F. and Thiede, J. (1990) Nordic Seas surface ice drift reconstructions: evidence from ice rafted coal fragments during oxygen isotope stage 6. In: Glacimarine environments: processes and sediments. , ed. by Dowdeswell, J. A. and Scourse, J. D. Special Publications Geological Society London, 53 . GSL (Geological Society London), London, pp. 235-251. DOI 10.1144/GSL.SP.1990.053.01.13 <https://doi.org/10.1144/GSL.SP.1990.053.01.13>. doi:10.1144/GSL.SP.1990.053.01.13 info:eu-repo/semantics/restrictedAccess Book chapter NonPeerReviewed 1990 ftoceanrep https://doi.org/10.1144/GSL.SP.1990.053.01.13 2023-04-07T15:45:27Z Sixteen long sediment cores from the eastern Arctic Ocean, the Fram Strait and the Norwegian-Greenland Sea, documenting 200 000 years of sedimentation, were studied for their qualitative dropstone composition (>500 µm-fraction). In sediments from oxygen isotope stages 1–5, coal particles are usually subordinate components of the coarse fraction. In contrast to younger deposits, coal content in oxygen isotope stage 6 (186-128 ka) varies between 20% and 65 0n the eastern Arctic Ocean and the Fram Strait and between 5% and 20 0n the Norwegian Sea. Southward decreasing coal content and similarities in maturity and petrography of the coals indicate that the coal was transported by iceberg or sea ice rafting more than 1000 km to the south. It is suggested that during intervals of oxygen-isotope stage 6 drifting ice carried abundant coal fragments from the eastern Arctic Ocean southward through the Fram Strait into the eastern Norwegian Sea. Thus, surface circulation was then opposite to that of today. Book Part Arctic Arctic Ocean Fram Strait Greenland Greenland Sea Iceberg* Nordic Seas Norwegian Sea Sea ice OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Arctic Arctic Ocean Greenland Norwegian Sea Geological Society, London, Special Publications 53 1 235 251 |
institution |
Open Polar |
collection |
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
op_collection_id |
ftoceanrep |
language |
English |
description |
Sixteen long sediment cores from the eastern Arctic Ocean, the Fram Strait and the Norwegian-Greenland Sea, documenting 200 000 years of sedimentation, were studied for their qualitative dropstone composition (>500 µm-fraction). In sediments from oxygen isotope stages 1–5, coal particles are usually subordinate components of the coarse fraction. In contrast to younger deposits, coal content in oxygen isotope stage 6 (186-128 ka) varies between 20% and 65 0n the eastern Arctic Ocean and the Fram Strait and between 5% and 20 0n the Norwegian Sea. Southward decreasing coal content and similarities in maturity and petrography of the coals indicate that the coal was transported by iceberg or sea ice rafting more than 1000 km to the south. It is suggested that during intervals of oxygen-isotope stage 6 drifting ice carried abundant coal fragments from the eastern Arctic Ocean southward through the Fram Strait into the eastern Norwegian Sea. Thus, surface circulation was then opposite to that of today. |
author2 |
Dowdeswell, J. A. Scourse, J. D. |
format |
Book Part |
author |
Bischof, Jens Koch, Joachim Kubisch, Michaela Spielhagen, Robert F. Thiede, Jörn |
spellingShingle |
Bischof, Jens Koch, Joachim Kubisch, Michaela Spielhagen, Robert F. Thiede, Jörn Nordic Seas surface ice drift reconstructions: evidence from ice rafted coal fragments during oxygen isotope stage 6 |
author_facet |
Bischof, Jens Koch, Joachim Kubisch, Michaela Spielhagen, Robert F. Thiede, Jörn |
author_sort |
Bischof, Jens |
title |
Nordic Seas surface ice drift reconstructions: evidence from ice rafted coal fragments during oxygen isotope stage 6 |
title_short |
Nordic Seas surface ice drift reconstructions: evidence from ice rafted coal fragments during oxygen isotope stage 6 |
title_full |
Nordic Seas surface ice drift reconstructions: evidence from ice rafted coal fragments during oxygen isotope stage 6 |
title_fullStr |
Nordic Seas surface ice drift reconstructions: evidence from ice rafted coal fragments during oxygen isotope stage 6 |
title_full_unstemmed |
Nordic Seas surface ice drift reconstructions: evidence from ice rafted coal fragments during oxygen isotope stage 6 |
title_sort |
nordic seas surface ice drift reconstructions: evidence from ice rafted coal fragments during oxygen isotope stage 6 |
publisher |
GSL (Geological Society London) |
publishDate |
1990 |
url |
https://oceanrep.geomar.de/id/eprint/46633/ https://oceanrep.geomar.de/id/eprint/46633/1/Bischof%20et.al.pdf https://doi.org/10.1144/GSL.SP.1990.053.01.13 |
geographic |
Arctic Arctic Ocean Greenland Norwegian Sea |
geographic_facet |
Arctic Arctic Ocean Greenland Norwegian Sea |
genre |
Arctic Arctic Ocean Fram Strait Greenland Greenland Sea Iceberg* Nordic Seas Norwegian Sea Sea ice |
genre_facet |
Arctic Arctic Ocean Fram Strait Greenland Greenland Sea Iceberg* Nordic Seas Norwegian Sea Sea ice |
op_relation |
https://oceanrep.geomar.de/id/eprint/46633/1/Bischof%20et.al.pdf Bischof, J., Koch, J., Kubisch, M., Spielhagen, R. F. and Thiede, J. (1990) Nordic Seas surface ice drift reconstructions: evidence from ice rafted coal fragments during oxygen isotope stage 6. In: Glacimarine environments: processes and sediments. , ed. by Dowdeswell, J. A. and Scourse, J. D. Special Publications Geological Society London, 53 . GSL (Geological Society London), London, pp. 235-251. DOI 10.1144/GSL.SP.1990.053.01.13 <https://doi.org/10.1144/GSL.SP.1990.053.01.13>. doi:10.1144/GSL.SP.1990.053.01.13 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1144/GSL.SP.1990.053.01.13 |
container_title |
Geological Society, London, Special Publications |
container_volume |
53 |
container_issue |
1 |
container_start_page |
235 |
op_container_end_page |
251 |
_version_ |
1766320565159723008 |