Glaciomarine sedimentation in epicontinental seas exemplified by the northern Barents Sea
Sediments on high Arctic shelves result from modern processes and the effect of former glaciations. Based on data from the northern Barents Sea, an area with input from large and numerous surging glaciers, we define two principal zones with different environmental regimes and corresponding sedimenta...
Published in: | Marine Geology |
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Language: | English |
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Elsevier
1989
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Online Access: | https://oceanrep.geomar.de/id/eprint/42115/ https://oceanrep.geomar.de/id/eprint/42115/1/Elverhoi.pdf https://doi.org/10.1016/0025-3227(89)90155-2 |
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ftoceanrep:oai:oceanrep.geomar.de:42115 2023-05-15T15:04:04+02:00 Glaciomarine sedimentation in epicontinental seas exemplified by the northern Barents Sea Elverhøi, Anders Pfirman, Stephanie L. Solheim, Anders Larssen, Bengt B. 1989 text https://oceanrep.geomar.de/id/eprint/42115/ https://oceanrep.geomar.de/id/eprint/42115/1/Elverhoi.pdf https://doi.org/10.1016/0025-3227(89)90155-2 en eng Elsevier https://oceanrep.geomar.de/id/eprint/42115/1/Elverhoi.pdf Elverhøi, A., Pfirman, S. L., Solheim, A. and Larssen, B. B. (1989) Glaciomarine sedimentation in epicontinental seas exemplified by the northern Barents Sea. Marine Geology, 85 (2-4). pp. 225-250. DOI 10.1016/0025-3227(89)90155-2 <https://doi.org/10.1016/0025-3227%2889%2990155-2>. doi:10.1016/0025-3227(89)90155-2 info:eu-repo/semantics/restrictedAccess Article PeerReviewed 1989 ftoceanrep https://doi.org/10.1016/0025-3227(89)90155-2 2023-04-07T15:38:36Z Sediments on high Arctic shelves result from modern processes and the effect of former glaciations. Based on data from the northern Barents Sea, an area with input from large and numerous surging glaciers, we define two principal zones with different environmental regimes and corresponding sedimentary facies: (1) a glacier-proximal zone influenced by grounding-line processes and the immediately adjacent areas affected by glacial sediment input, and (2) a glacier-distal, sea-ice and current-controlled zone, which also includes a wide sediment-starved region dominated by biogenic carbonate accumulation. Characteristic of the glacier-proximal zone are glacial surges which affect sedimentation rates and leave a diagnostic pattern of sea-floor morphologies. Extensive ice gouging causes a homogeneous sediment texture. In the glacier-distal zone, fine-grained mud supplied from sea ice and infrequent coarser material deposited from icebergs is reworked by modern oceanographic processes. On shallow banks, in 30–50 m of water, carbonates accumulate from a prolific bottom fauna formed in response to extensive reworking and nutrient supply. Article in Journal/Newspaper Arctic Barents Sea Iceberg* Sea ice OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Arctic Barents Sea Marine Geology 85 2-4 225 250 |
institution |
Open Polar |
collection |
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
op_collection_id |
ftoceanrep |
language |
English |
description |
Sediments on high Arctic shelves result from modern processes and the effect of former glaciations. Based on data from the northern Barents Sea, an area with input from large and numerous surging glaciers, we define two principal zones with different environmental regimes and corresponding sedimentary facies: (1) a glacier-proximal zone influenced by grounding-line processes and the immediately adjacent areas affected by glacial sediment input, and (2) a glacier-distal, sea-ice and current-controlled zone, which also includes a wide sediment-starved region dominated by biogenic carbonate accumulation. Characteristic of the glacier-proximal zone are glacial surges which affect sedimentation rates and leave a diagnostic pattern of sea-floor morphologies. Extensive ice gouging causes a homogeneous sediment texture. In the glacier-distal zone, fine-grained mud supplied from sea ice and infrequent coarser material deposited from icebergs is reworked by modern oceanographic processes. On shallow banks, in 30–50 m of water, carbonates accumulate from a prolific bottom fauna formed in response to extensive reworking and nutrient supply. |
format |
Article in Journal/Newspaper |
author |
Elverhøi, Anders Pfirman, Stephanie L. Solheim, Anders Larssen, Bengt B. |
spellingShingle |
Elverhøi, Anders Pfirman, Stephanie L. Solheim, Anders Larssen, Bengt B. Glaciomarine sedimentation in epicontinental seas exemplified by the northern Barents Sea |
author_facet |
Elverhøi, Anders Pfirman, Stephanie L. Solheim, Anders Larssen, Bengt B. |
author_sort |
Elverhøi, Anders |
title |
Glaciomarine sedimentation in epicontinental seas exemplified by the northern Barents Sea |
title_short |
Glaciomarine sedimentation in epicontinental seas exemplified by the northern Barents Sea |
title_full |
Glaciomarine sedimentation in epicontinental seas exemplified by the northern Barents Sea |
title_fullStr |
Glaciomarine sedimentation in epicontinental seas exemplified by the northern Barents Sea |
title_full_unstemmed |
Glaciomarine sedimentation in epicontinental seas exemplified by the northern Barents Sea |
title_sort |
glaciomarine sedimentation in epicontinental seas exemplified by the northern barents sea |
publisher |
Elsevier |
publishDate |
1989 |
url |
https://oceanrep.geomar.de/id/eprint/42115/ https://oceanrep.geomar.de/id/eprint/42115/1/Elverhoi.pdf https://doi.org/10.1016/0025-3227(89)90155-2 |
geographic |
Arctic Barents Sea |
geographic_facet |
Arctic Barents Sea |
genre |
Arctic Barents Sea Iceberg* Sea ice |
genre_facet |
Arctic Barents Sea Iceberg* Sea ice |
op_relation |
https://oceanrep.geomar.de/id/eprint/42115/1/Elverhoi.pdf Elverhøi, A., Pfirman, S. L., Solheim, A. and Larssen, B. B. (1989) Glaciomarine sedimentation in epicontinental seas exemplified by the northern Barents Sea. Marine Geology, 85 (2-4). pp. 225-250. DOI 10.1016/0025-3227(89)90155-2 <https://doi.org/10.1016/0025-3227%2889%2990155-2>. doi:10.1016/0025-3227(89)90155-2 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1016/0025-3227(89)90155-2 |
container_title |
Marine Geology |
container_volume |
85 |
container_issue |
2-4 |
container_start_page |
225 |
op_container_end_page |
250 |
_version_ |
1766335884610764800 |