Miocene deep-water agglutinated Foraminifera from ODP Hole 909c: Implications for the paleoceanography of the Fram Strait Area, Greenland Sea
Deep-water agglutinated Foraminifera (DWAF) are investigated from Miocene sediments recovered from ODP Hole 909C in the Fram Strait, Norwegian-Green land Sea. We studied 125 samples from Cores 909C-50R to -103R. and recovered over 60 species of DWAF. The faunal succession in Hole 909C is subdivided...
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MICROPALEONTOLOGY PRESS
2005
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ftucl:oai:eprints.ucl.ac.uk.OAI2:8813 2024-10-13T14:04:57+00:00 Miocene deep-water agglutinated Foraminifera from ODP Hole 909c: Implications for the paleoceanography of the Fram Strait Area, Greenland Sea Kaminski, MA Silye, L Kender, S 2005 application/pdf https://discovery.ucl.ac.uk/id/eprint/8813/1/8813.pdf https://discovery.ucl.ac.uk/id/eprint/8813/ unknown MICROPALEONTOLOGY PRESS https://discovery.ucl.ac.uk/id/eprint/8813/1/8813.pdf https://discovery.ucl.ac.uk/id/eprint/8813/ open MICROPALEONTOLOGY , 51 (5) 373 - 403. (2005) CENTRAL ARCTIC-OCEAN BENTHIC FORAMINIFERA NORTH SEAS LABRADOR BIOSTRATIGRAPHY PLIOCENE Article 2005 ftucl 2024-09-30T07:42:09Z Deep-water agglutinated Foraminifera (DWAF) are investigated from Miocene sediments recovered from ODP Hole 909C in the Fram Strait, Norwegian-Green land Sea. We studied 125 samples from Cores 909C-50R to -103R. and recovered over 60 species of DWAF. The faunal succession in Hole 909C is subdivided into three assemblages based on the stratigraphic ranges of characteristic cosmopolitan taxa. These are: (1) a diverse Reticulophraginium amplectens - Reophanus berggreni Assemblage in Cores 909C-100R-2 to -91R-1 (1040.71-952.78mbsf); (2) a Reticulophragmium amplectens Assemblage in Cores 909C-87R-2, to -71R-3 (915.7-762.68mbsf); and (3) a low-diversity Reticulophraginium rotundidorsatum Assemblage in Cores 909C-71R-1 to -55R-1 (759.68-605.52mbsf). The DWAF assemblages are correlated to the standard chronostratigraphy using dinoflagellate cysts and magnetostratigraphy. The stratigraphic ranges of some well-known Palcogene DWAF species extend far into the Miocene at this locality, confirming tire hypothesis that the Arctic and northern Norwegian Sea basins served as a refuge for these species long after they disappeared from the North Atlantic stratigraphic record. The taxonomic affinities of the Miocene assemblages from Hole 909C supports the idea that an estuarine Circulation pattern has been in place between the Arctic Ocean and Greenland Sea basins since at least the early Miocene. Changes in the benthic foraminiferal morphogroups within the R. rotundidorsatum Assemblage correlate with an increase in total organic carbon, indicating an increase in oceanic productivity in the Fram Strait region during the late Miocene. Article in Journal/Newspaper Arctic Arctic Ocean Foraminifera* Fram Strait Greenland Greenland Sea North Atlantic Norwegian Sea University College London: UCL Discovery Arctic Arctic Ocean Norwegian Sea Greenland |
institution |
Open Polar |
collection |
University College London: UCL Discovery |
op_collection_id |
ftucl |
language |
unknown |
topic |
CENTRAL ARCTIC-OCEAN BENTHIC FORAMINIFERA NORTH SEAS LABRADOR BIOSTRATIGRAPHY PLIOCENE |
spellingShingle |
CENTRAL ARCTIC-OCEAN BENTHIC FORAMINIFERA NORTH SEAS LABRADOR BIOSTRATIGRAPHY PLIOCENE Kaminski, MA Silye, L Kender, S Miocene deep-water agglutinated Foraminifera from ODP Hole 909c: Implications for the paleoceanography of the Fram Strait Area, Greenland Sea |
topic_facet |
CENTRAL ARCTIC-OCEAN BENTHIC FORAMINIFERA NORTH SEAS LABRADOR BIOSTRATIGRAPHY PLIOCENE |
description |
Deep-water agglutinated Foraminifera (DWAF) are investigated from Miocene sediments recovered from ODP Hole 909C in the Fram Strait, Norwegian-Green land Sea. We studied 125 samples from Cores 909C-50R to -103R. and recovered over 60 species of DWAF. The faunal succession in Hole 909C is subdivided into three assemblages based on the stratigraphic ranges of characteristic cosmopolitan taxa. These are: (1) a diverse Reticulophraginium amplectens - Reophanus berggreni Assemblage in Cores 909C-100R-2 to -91R-1 (1040.71-952.78mbsf); (2) a Reticulophragmium amplectens Assemblage in Cores 909C-87R-2, to -71R-3 (915.7-762.68mbsf); and (3) a low-diversity Reticulophraginium rotundidorsatum Assemblage in Cores 909C-71R-1 to -55R-1 (759.68-605.52mbsf). The DWAF assemblages are correlated to the standard chronostratigraphy using dinoflagellate cysts and magnetostratigraphy. The stratigraphic ranges of some well-known Palcogene DWAF species extend far into the Miocene at this locality, confirming tire hypothesis that the Arctic and northern Norwegian Sea basins served as a refuge for these species long after they disappeared from the North Atlantic stratigraphic record. The taxonomic affinities of the Miocene assemblages from Hole 909C supports the idea that an estuarine Circulation pattern has been in place between the Arctic Ocean and Greenland Sea basins since at least the early Miocene. Changes in the benthic foraminiferal morphogroups within the R. rotundidorsatum Assemblage correlate with an increase in total organic carbon, indicating an increase in oceanic productivity in the Fram Strait region during the late Miocene. |
format |
Article in Journal/Newspaper |
author |
Kaminski, MA Silye, L Kender, S |
author_facet |
Kaminski, MA Silye, L Kender, S |
author_sort |
Kaminski, MA |
title |
Miocene deep-water agglutinated Foraminifera from ODP Hole 909c: Implications for the paleoceanography of the Fram Strait Area, Greenland Sea |
title_short |
Miocene deep-water agglutinated Foraminifera from ODP Hole 909c: Implications for the paleoceanography of the Fram Strait Area, Greenland Sea |
title_full |
Miocene deep-water agglutinated Foraminifera from ODP Hole 909c: Implications for the paleoceanography of the Fram Strait Area, Greenland Sea |
title_fullStr |
Miocene deep-water agglutinated Foraminifera from ODP Hole 909c: Implications for the paleoceanography of the Fram Strait Area, Greenland Sea |
title_full_unstemmed |
Miocene deep-water agglutinated Foraminifera from ODP Hole 909c: Implications for the paleoceanography of the Fram Strait Area, Greenland Sea |
title_sort |
miocene deep-water agglutinated foraminifera from odp hole 909c: implications for the paleoceanography of the fram strait area, greenland sea |
publisher |
MICROPALEONTOLOGY PRESS |
publishDate |
2005 |
url |
https://discovery.ucl.ac.uk/id/eprint/8813/1/8813.pdf https://discovery.ucl.ac.uk/id/eprint/8813/ |
geographic |
Arctic Arctic Ocean Norwegian Sea Greenland |
geographic_facet |
Arctic Arctic Ocean Norwegian Sea Greenland |
genre |
Arctic Arctic Ocean Foraminifera* Fram Strait Greenland Greenland Sea North Atlantic Norwegian Sea |
genre_facet |
Arctic Arctic Ocean Foraminifera* Fram Strait Greenland Greenland Sea North Atlantic Norwegian Sea |
op_source |
MICROPALEONTOLOGY , 51 (5) 373 - 403. (2005) |
op_relation |
https://discovery.ucl.ac.uk/id/eprint/8813/1/8813.pdf https://discovery.ucl.ac.uk/id/eprint/8813/ |
op_rights |
open |
_version_ |
1812810774462070784 |