Entrainment of planktonic foraminifera: effect of bulk density
Depositional hydrodynamics have been studied using settling rate distributions of Norwegian deep sea sediments (between Jan Mayen Island and the Vøring Plateau), together with Shields’ critical shear stress velocities. Planktonic foraminifera are the dominant sand sized component of these sediments....
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Language: | English |
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International Association of Sedimentologists
1993
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Online Access: | https://oceanrep.geomar.de/id/eprint/33210/ https://oceanrep.geomar.de/id/eprint/33210/1/Oehmig.pdf https://doi.org/10.1111/j.1365-3091.1993.tb01366.x |
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ftoceanrep:oai:oceanrep.geomar.de:33210 2023-05-15T16:57:02+02:00 Entrainment of planktonic foraminifera: effect of bulk density Oehmig, Reinhard 1993 text https://oceanrep.geomar.de/id/eprint/33210/ https://oceanrep.geomar.de/id/eprint/33210/1/Oehmig.pdf https://doi.org/10.1111/j.1365-3091.1993.tb01366.x en eng International Association of Sedimentologists https://oceanrep.geomar.de/id/eprint/33210/1/Oehmig.pdf Oehmig, R. (1993) Entrainment of planktonic foraminifera: effect of bulk density . Sedimentology, 40 (5). pp. 869-877. DOI 10.1111/j.1365-3091.1993.tb01366.x <https://doi.org/10.1111/j.1365-3091.1993.tb01366.x>. doi:10.1111/j.1365-3091.1993.tb01366.x info:eu-repo/semantics/restrictedAccess Article PeerReviewed 1993 ftoceanrep https://doi.org/10.1111/j.1365-3091.1993.tb01366.x 2023-04-07T15:26:17Z Depositional hydrodynamics have been studied using settling rate distributions of Norwegian deep sea sediments (between Jan Mayen Island and the Vøring Plateau), together with Shields’ critical shear stress velocities. Planktonic foraminifera are the dominant sand sized component of these sediments. The bulk density of the foraminifera was calculated from their settling velocity, sieve size and shape. Density decreases from 2·39 g cm−3 at 0·05 mm diameter to 1·37 g cm−3 at 0·35 mm diameter. These density and size data were used to construct a threshold sediment movement curve. From the similarity in their Shield's critical shear-stress velocities and the observed correlation of foraminifera size with decreasing percentage of fine fraction, it is concluded that the two components, the sand size foraminifera and the quartz and carbonate silt, are transport-equivalent. Article in Journal/Newspaper Jan Mayen Jan Mayen Island Planktonic foraminifera OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Jan Mayen Vøring Plateau ENVELOPE(4.000,4.000,67.000,67.000) Sedimentology 40 5 869 877 |
institution |
Open Polar |
collection |
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
op_collection_id |
ftoceanrep |
language |
English |
description |
Depositional hydrodynamics have been studied using settling rate distributions of Norwegian deep sea sediments (between Jan Mayen Island and the Vøring Plateau), together with Shields’ critical shear stress velocities. Planktonic foraminifera are the dominant sand sized component of these sediments. The bulk density of the foraminifera was calculated from their settling velocity, sieve size and shape. Density decreases from 2·39 g cm−3 at 0·05 mm diameter to 1·37 g cm−3 at 0·35 mm diameter. These density and size data were used to construct a threshold sediment movement curve. From the similarity in their Shield's critical shear-stress velocities and the observed correlation of foraminifera size with decreasing percentage of fine fraction, it is concluded that the two components, the sand size foraminifera and the quartz and carbonate silt, are transport-equivalent. |
format |
Article in Journal/Newspaper |
author |
Oehmig, Reinhard |
spellingShingle |
Oehmig, Reinhard Entrainment of planktonic foraminifera: effect of bulk density |
author_facet |
Oehmig, Reinhard |
author_sort |
Oehmig, Reinhard |
title |
Entrainment of planktonic foraminifera: effect of bulk density |
title_short |
Entrainment of planktonic foraminifera: effect of bulk density |
title_full |
Entrainment of planktonic foraminifera: effect of bulk density |
title_fullStr |
Entrainment of planktonic foraminifera: effect of bulk density |
title_full_unstemmed |
Entrainment of planktonic foraminifera: effect of bulk density |
title_sort |
entrainment of planktonic foraminifera: effect of bulk density |
publisher |
International Association of Sedimentologists |
publishDate |
1993 |
url |
https://oceanrep.geomar.de/id/eprint/33210/ https://oceanrep.geomar.de/id/eprint/33210/1/Oehmig.pdf https://doi.org/10.1111/j.1365-3091.1993.tb01366.x |
long_lat |
ENVELOPE(4.000,4.000,67.000,67.000) |
geographic |
Jan Mayen Vøring Plateau |
geographic_facet |
Jan Mayen Vøring Plateau |
genre |
Jan Mayen Jan Mayen Island Planktonic foraminifera |
genre_facet |
Jan Mayen Jan Mayen Island Planktonic foraminifera |
op_relation |
https://oceanrep.geomar.de/id/eprint/33210/1/Oehmig.pdf Oehmig, R. (1993) Entrainment of planktonic foraminifera: effect of bulk density . Sedimentology, 40 (5). pp. 869-877. DOI 10.1111/j.1365-3091.1993.tb01366.x <https://doi.org/10.1111/j.1365-3091.1993.tb01366.x>. doi:10.1111/j.1365-3091.1993.tb01366.x |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1111/j.1365-3091.1993.tb01366.x |
container_title |
Sedimentology |
container_volume |
40 |
container_issue |
5 |
container_start_page |
869 |
op_container_end_page |
877 |
_version_ |
1766048296756838400 |