Origin of sediment pellets from the Arctic seafloor: sea ice or icebergs?
Sediment cores from the Norwegian and Greenland Seas and the Nansen Basin were studied to determine the origin of sediment pellets, centimetre-sized aggregations of clay to sandsized sediment occurring in the cores. By comparing the grain size, grain shape and composition of the pellet sediments to...
Published in: | Deep Sea Research Part A. Oceanographic Research Papers |
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Format: | Article in Journal/Newspaper |
Language: | English |
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Pergamon Press
1992
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Online Access: | https://oceanrep.geomar.de/id/eprint/33202/ https://oceanrep.geomar.de/id/eprint/33202/7/Goldschmidt%20et.al.pdf https://doi.org/10.1016/S0198-0149(06)80020-8 |
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ftoceanrep:oai:oceanrep.geomar.de:33202 2023-05-15T14:26:52+02:00 Origin of sediment pellets from the Arctic seafloor: sea ice or icebergs? Goldschmidt, P. M. Pfirman, S. L. Wollenburg, I. Henrich, R. 1992 text https://oceanrep.geomar.de/id/eprint/33202/ https://oceanrep.geomar.de/id/eprint/33202/7/Goldschmidt%20et.al.pdf https://doi.org/10.1016/S0198-0149(06)80020-8 en eng Pergamon Press https://oceanrep.geomar.de/id/eprint/33202/7/Goldschmidt%20et.al.pdf Goldschmidt, P. M., Pfirman, S. L., Wollenburg, I. and Henrich, R. (1992) Origin of sediment pellets from the Arctic seafloor: sea ice or icebergs?. Deep Sea Research Part A: Oceanographic Research Papers, 39 (2). pp. 539-565. DOI 10.1016/S0198-0149(06)80020-8 <https://doi.org/10.1016/S0198-0149%2806%2980020-8>. doi:10.1016/S0198-0149(06)80020-8 info:eu-repo/semantics/restrictedAccess Article PeerReviewed 1992 ftoceanrep https://doi.org/10.1016/S0198-0149(06)80020-8 2023-04-07T15:26:17Z Sediment cores from the Norwegian and Greenland Seas and the Nansen Basin were studied to determine the origin of sediment pellets, centimetre-sized aggregations of clay to sandsized sediment occurring in the cores. By comparing the grain size, grain shape and composition of the pellet sediments to sediments collected directly from the surfaces of sea ice in the Nansen Basin and from icebergs in the Barents Sea, the pelleted sediment was found to be more similar to that in the icebergs than that on the sea ice. The pellets may be formed on, in or under a glacier or during transport on/in an iceberg. When icebergs overturn or melt, the pellets fall out and are consolidated enough to survive a drop of up to 4 km to the ocean bottom and to retain their integrity even after burial on the seafloor. Article in Journal/Newspaper Arctic Arctic Barents Sea glacier Greenland Iceberg* Nansen Basin Sea ice OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Arctic Barents Sea Greenland Deep Sea Research Part A. Oceanographic Research Papers 39 2 S539 S565 |
institution |
Open Polar |
collection |
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
op_collection_id |
ftoceanrep |
language |
English |
description |
Sediment cores from the Norwegian and Greenland Seas and the Nansen Basin were studied to determine the origin of sediment pellets, centimetre-sized aggregations of clay to sandsized sediment occurring in the cores. By comparing the grain size, grain shape and composition of the pellet sediments to sediments collected directly from the surfaces of sea ice in the Nansen Basin and from icebergs in the Barents Sea, the pelleted sediment was found to be more similar to that in the icebergs than that on the sea ice. The pellets may be formed on, in or under a glacier or during transport on/in an iceberg. When icebergs overturn or melt, the pellets fall out and are consolidated enough to survive a drop of up to 4 km to the ocean bottom and to retain their integrity even after burial on the seafloor. |
format |
Article in Journal/Newspaper |
author |
Goldschmidt, P. M. Pfirman, S. L. Wollenburg, I. Henrich, R. |
spellingShingle |
Goldschmidt, P. M. Pfirman, S. L. Wollenburg, I. Henrich, R. Origin of sediment pellets from the Arctic seafloor: sea ice or icebergs? |
author_facet |
Goldschmidt, P. M. Pfirman, S. L. Wollenburg, I. Henrich, R. |
author_sort |
Goldschmidt, P. M. |
title |
Origin of sediment pellets from the Arctic seafloor: sea ice or icebergs? |
title_short |
Origin of sediment pellets from the Arctic seafloor: sea ice or icebergs? |
title_full |
Origin of sediment pellets from the Arctic seafloor: sea ice or icebergs? |
title_fullStr |
Origin of sediment pellets from the Arctic seafloor: sea ice or icebergs? |
title_full_unstemmed |
Origin of sediment pellets from the Arctic seafloor: sea ice or icebergs? |
title_sort |
origin of sediment pellets from the arctic seafloor: sea ice or icebergs? |
publisher |
Pergamon Press |
publishDate |
1992 |
url |
https://oceanrep.geomar.de/id/eprint/33202/ https://oceanrep.geomar.de/id/eprint/33202/7/Goldschmidt%20et.al.pdf https://doi.org/10.1016/S0198-0149(06)80020-8 |
geographic |
Arctic Barents Sea Greenland |
geographic_facet |
Arctic Barents Sea Greenland |
genre |
Arctic Arctic Barents Sea glacier Greenland Iceberg* Nansen Basin Sea ice |
genre_facet |
Arctic Arctic Barents Sea glacier Greenland Iceberg* Nansen Basin Sea ice |
op_relation |
https://oceanrep.geomar.de/id/eprint/33202/7/Goldschmidt%20et.al.pdf Goldschmidt, P. M., Pfirman, S. L., Wollenburg, I. and Henrich, R. (1992) Origin of sediment pellets from the Arctic seafloor: sea ice or icebergs?. Deep Sea Research Part A: Oceanographic Research Papers, 39 (2). pp. 539-565. DOI 10.1016/S0198-0149(06)80020-8 <https://doi.org/10.1016/S0198-0149%2806%2980020-8>. doi:10.1016/S0198-0149(06)80020-8 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1016/S0198-0149(06)80020-8 |
container_title |
Deep Sea Research Part A. Oceanographic Research Papers |
container_volume |
39 |
container_issue |
2 |
container_start_page |
S539 |
op_container_end_page |
S565 |
_version_ |
1766300331716640768 |