Distribution of clay minerals in surface sediments from the eastern Barents and south-western Kara seas
Surface samples from the eastern Barents and south-western Kara seas have been analysed for clay mineralogy. Transport paths, the role of regional sources and local bedrock outcrops and the influence of hydrodynamic and glacigenous processes for clay distribution on the shelves are discussed in rela...
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1995
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Online Access: | https://oceanrep.geomar.de/id/eprint/5323/ https://oceanrep.geomar.de/id/eprint/5323/1/Nuernberg.pdf https://doi.org/10.1007/BF00284528 |
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ftoceanrep:oai:oceanrep.geomar.de:5323 2023-05-15T14:52:02+02:00 Distribution of clay minerals in surface sediments from the eastern Barents and south-western Kara seas Nürnberg, Dirk Levitan, Michael Pavlidis, J. A. Shelekhova, E.S. 1995 text https://oceanrep.geomar.de/id/eprint/5323/ https://oceanrep.geomar.de/id/eprint/5323/1/Nuernberg.pdf https://doi.org/10.1007/BF00284528 en eng Springer https://oceanrep.geomar.de/id/eprint/5323/1/Nuernberg.pdf Nürnberg, D. , Levitan, M., Pavlidis, J. A. and Shelekhova, E. S. (1995) Distribution of clay minerals in surface sediments from the eastern Barents and south-western Kara seas. Geologische Rundschau, 84 . pp. 665-682. DOI 10.1007/BF00284528 <https://doi.org/10.1007/BF00284528>. doi:10.1007/BF00284528 info:eu-repo/semantics/restrictedAccess Article PeerReviewed 1995 ftoceanrep https://doi.org/10.1007/BF00284528 2023-04-07T14:50:54Z Surface samples from the eastern Barents and south-western Kara seas have been analysed for clay mineralogy. Transport paths, the role of regional sources and local bedrock outcrops and the influence of hydrodynamic and glacigenous processes for clay distribution on the shelves are discussed in relation to central Arctic Ocean deep sea and sea ice sediments. Franz Josef Land and Novaya Zemlya show significantly different clay mineral associations. Although smectite concentrations are fairly high, Franz Josef Land can be excluded as a source for central Arctic sea ice sediments, which are relatively rich in smectite. In the Kara Sea, smectite concentrations in coastal sediments surpass even the Franz Josef Land concentrations. The large cyclonic gyre in the eastern Barents Sea between Novaya Zemlya and Franz Josef Land, which serves as a mixing zone between Arctic and North Atlantic water, is apparently reflected within the smectite distribution pattern. With the exception of Franz Josef Land, the area of investigation is typically low in kaolinite. In particular, coastal areas and areas north of Novaya Zemlya, influenced by the inflow of Arctic waters, show the lowest kaolinite concentrations. A high kaolinite occurrence within the Nansen Basin is most probably related to Franz Josef Land and emphasizes the importance of long-range downslope transport of sediments across the continental slope. The surface water circulation pattern in close interaction with local outcrops onshore Novaya Zemlya and locally restricted occurrences within the eastern Barents Sea significantly alter the illite dispersal pattern. Illite concentrations are lowest around Franz Josef Land. Chlorite is generally low in the area of investigation. Submarine outcrops and important chlorite occurrences onshore Novaya Zemlya bias its distribution pattern. Article in Journal/Newspaper Arctic Arctic Ocean Barents Sea Franz Josef Land Kara Sea Nansen Nansen Basin North Atlantic Novaya Zemlya Sea ice OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Arctic Arctic Ocean Barents Sea Franz Josef Land ENVELOPE(55.000,55.000,81.000,81.000) Kara Sea Geologische Rundschau 84 3 |
institution |
Open Polar |
collection |
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
op_collection_id |
ftoceanrep |
language |
English |
description |
Surface samples from the eastern Barents and south-western Kara seas have been analysed for clay mineralogy. Transport paths, the role of regional sources and local bedrock outcrops and the influence of hydrodynamic and glacigenous processes for clay distribution on the shelves are discussed in relation to central Arctic Ocean deep sea and sea ice sediments. Franz Josef Land and Novaya Zemlya show significantly different clay mineral associations. Although smectite concentrations are fairly high, Franz Josef Land can be excluded as a source for central Arctic sea ice sediments, which are relatively rich in smectite. In the Kara Sea, smectite concentrations in coastal sediments surpass even the Franz Josef Land concentrations. The large cyclonic gyre in the eastern Barents Sea between Novaya Zemlya and Franz Josef Land, which serves as a mixing zone between Arctic and North Atlantic water, is apparently reflected within the smectite distribution pattern. With the exception of Franz Josef Land, the area of investigation is typically low in kaolinite. In particular, coastal areas and areas north of Novaya Zemlya, influenced by the inflow of Arctic waters, show the lowest kaolinite concentrations. A high kaolinite occurrence within the Nansen Basin is most probably related to Franz Josef Land and emphasizes the importance of long-range downslope transport of sediments across the continental slope. The surface water circulation pattern in close interaction with local outcrops onshore Novaya Zemlya and locally restricted occurrences within the eastern Barents Sea significantly alter the illite dispersal pattern. Illite concentrations are lowest around Franz Josef Land. Chlorite is generally low in the area of investigation. Submarine outcrops and important chlorite occurrences onshore Novaya Zemlya bias its distribution pattern. |
format |
Article in Journal/Newspaper |
author |
Nürnberg, Dirk Levitan, Michael Pavlidis, J. A. Shelekhova, E.S. |
spellingShingle |
Nürnberg, Dirk Levitan, Michael Pavlidis, J. A. Shelekhova, E.S. Distribution of clay minerals in surface sediments from the eastern Barents and south-western Kara seas |
author_facet |
Nürnberg, Dirk Levitan, Michael Pavlidis, J. A. Shelekhova, E.S. |
author_sort |
Nürnberg, Dirk |
title |
Distribution of clay minerals in surface sediments from the eastern Barents and south-western Kara seas |
title_short |
Distribution of clay minerals in surface sediments from the eastern Barents and south-western Kara seas |
title_full |
Distribution of clay minerals in surface sediments from the eastern Barents and south-western Kara seas |
title_fullStr |
Distribution of clay minerals in surface sediments from the eastern Barents and south-western Kara seas |
title_full_unstemmed |
Distribution of clay minerals in surface sediments from the eastern Barents and south-western Kara seas |
title_sort |
distribution of clay minerals in surface sediments from the eastern barents and south-western kara seas |
publisher |
Springer |
publishDate |
1995 |
url |
https://oceanrep.geomar.de/id/eprint/5323/ https://oceanrep.geomar.de/id/eprint/5323/1/Nuernberg.pdf https://doi.org/10.1007/BF00284528 |
long_lat |
ENVELOPE(55.000,55.000,81.000,81.000) |
geographic |
Arctic Arctic Ocean Barents Sea Franz Josef Land Kara Sea |
geographic_facet |
Arctic Arctic Ocean Barents Sea Franz Josef Land Kara Sea |
genre |
Arctic Arctic Ocean Barents Sea Franz Josef Land Kara Sea Nansen Nansen Basin North Atlantic Novaya Zemlya Sea ice |
genre_facet |
Arctic Arctic Ocean Barents Sea Franz Josef Land Kara Sea Nansen Nansen Basin North Atlantic Novaya Zemlya Sea ice |
op_relation |
https://oceanrep.geomar.de/id/eprint/5323/1/Nuernberg.pdf Nürnberg, D. , Levitan, M., Pavlidis, J. A. and Shelekhova, E. S. (1995) Distribution of clay minerals in surface sediments from the eastern Barents and south-western Kara seas. Geologische Rundschau, 84 . pp. 665-682. DOI 10.1007/BF00284528 <https://doi.org/10.1007/BF00284528>. doi:10.1007/BF00284528 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1007/BF00284528 |
container_title |
Geologische Rundschau |
container_volume |
84 |
container_issue |
3 |
_version_ |
1766323159701651456 |