(Table 2) Similarity Indexes (Pearson's correlation coefficient) of the silicoflagellate assemblages of IODP Exp302
The silicoflagellate and ebridian assemblages in early middle Eocene Arctic cores obtained by IODP Expedition 302 (ACEX) were studied in order to decipher the paleoceanography of the upper water column. The assemblages in Lithologic Unit 2 (49.7-45.1 Ma), one of the biosiliceous intervals, were usua...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.733882 2024-09-15T17:50:28+00:00 (Table 2) Similarity Indexes (Pearson's correlation coefficient) of the silicoflagellate assemblages of IODP Exp302 Onodera, Jonaotaro Takahashi, Kozo Jordan, Richard William LATITUDE: 87.890000 * LONGITUDE: 137.650000 * MINIMUM ELEVATION: -1251.0 m * MAXIMUM ELEVATION: -1251.0 m 2010 text/tab-separated-values, 20 data points https://doi.pangaea.de/10.1594/PANGAEA.733882 https://doi.org/10.1594/PANGAEA.733882 en eng PANGAEA Onodera, Jonaotaro; Takahashi, Kozo; Jordan, Richard William (2008): Eocene silicoflagellate and ebridian paleoceanography in the central Arctic Ocean. Paleoceanography, 23, PA1S15, https://doi.org/10.1029/2007PA001474 https://doi.pangaea.de/10.1594/PANGAEA.733882 https://doi.org/10.1594/PANGAEA.733882 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess 302-CompSite Arctic Coring Expedition ACEX CCGS Captain Molly Kool (Vidar Viking) Comment COMPCORE Composite Core Exp302 Integrated Ocean Drilling Program / International Ocean Discovery Program IODP Modern analog technique (MAT) Reference of data Similarity index dataset 2010 ftpangaea https://doi.org/10.1594/PANGAEA.73388210.1029/2007PA001474 2024-07-24T02:31:30Z The silicoflagellate and ebridian assemblages in early middle Eocene Arctic cores obtained by IODP Expedition 302 (ACEX) were studied in order to decipher the paleoceanography of the upper water column. The assemblages in Lithologic Unit 2 (49.7-45.1 Ma), one of the biosiliceous intervals, were usually endemic as compared to the assemblages that occurred outside of the Arctic Ocean. The presence of these endemic assemblages is probably due to a unique environmental setting, controlled by the degree of mixing between the low-salinity Arctic waters and relatively high salinity waters supplied from outside the Arctic Ocean, such as the Atlantic and possibly the Western Siberian Sea. Using the basin-to-basin fractionation model, the early middle Eocene Arctic Ocean corresponds to an estuarine circulation type, which includes the modern-day Black Sea. The abundant down-core occurrence of ebridians strongly suggests the past presence of low-salinity waters, and may indicate that low oxygen concentrations prevailed in the euphotic layer, on the basis of the ecology of the modern ebridian Hermesinum adriaticum. Dataset Arctic Arctic Ocean PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(137.650000,137.650000,87.890000,87.890000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
302-CompSite Arctic Coring Expedition ACEX CCGS Captain Molly Kool (Vidar Viking) Comment COMPCORE Composite Core Exp302 Integrated Ocean Drilling Program / International Ocean Discovery Program IODP Modern analog technique (MAT) Reference of data Similarity index |
spellingShingle |
302-CompSite Arctic Coring Expedition ACEX CCGS Captain Molly Kool (Vidar Viking) Comment COMPCORE Composite Core Exp302 Integrated Ocean Drilling Program / International Ocean Discovery Program IODP Modern analog technique (MAT) Reference of data Similarity index Onodera, Jonaotaro Takahashi, Kozo Jordan, Richard William (Table 2) Similarity Indexes (Pearson's correlation coefficient) of the silicoflagellate assemblages of IODP Exp302 |
topic_facet |
302-CompSite Arctic Coring Expedition ACEX CCGS Captain Molly Kool (Vidar Viking) Comment COMPCORE Composite Core Exp302 Integrated Ocean Drilling Program / International Ocean Discovery Program IODP Modern analog technique (MAT) Reference of data Similarity index |
description |
The silicoflagellate and ebridian assemblages in early middle Eocene Arctic cores obtained by IODP Expedition 302 (ACEX) were studied in order to decipher the paleoceanography of the upper water column. The assemblages in Lithologic Unit 2 (49.7-45.1 Ma), one of the biosiliceous intervals, were usually endemic as compared to the assemblages that occurred outside of the Arctic Ocean. The presence of these endemic assemblages is probably due to a unique environmental setting, controlled by the degree of mixing between the low-salinity Arctic waters and relatively high salinity waters supplied from outside the Arctic Ocean, such as the Atlantic and possibly the Western Siberian Sea. Using the basin-to-basin fractionation model, the early middle Eocene Arctic Ocean corresponds to an estuarine circulation type, which includes the modern-day Black Sea. The abundant down-core occurrence of ebridians strongly suggests the past presence of low-salinity waters, and may indicate that low oxygen concentrations prevailed in the euphotic layer, on the basis of the ecology of the modern ebridian Hermesinum adriaticum. |
format |
Dataset |
author |
Onodera, Jonaotaro Takahashi, Kozo Jordan, Richard William |
author_facet |
Onodera, Jonaotaro Takahashi, Kozo Jordan, Richard William |
author_sort |
Onodera, Jonaotaro |
title |
(Table 2) Similarity Indexes (Pearson's correlation coefficient) of the silicoflagellate assemblages of IODP Exp302 |
title_short |
(Table 2) Similarity Indexes (Pearson's correlation coefficient) of the silicoflagellate assemblages of IODP Exp302 |
title_full |
(Table 2) Similarity Indexes (Pearson's correlation coefficient) of the silicoflagellate assemblages of IODP Exp302 |
title_fullStr |
(Table 2) Similarity Indexes (Pearson's correlation coefficient) of the silicoflagellate assemblages of IODP Exp302 |
title_full_unstemmed |
(Table 2) Similarity Indexes (Pearson's correlation coefficient) of the silicoflagellate assemblages of IODP Exp302 |
title_sort |
(table 2) similarity indexes (pearson's correlation coefficient) of the silicoflagellate assemblages of iodp exp302 |
publisher |
PANGAEA |
publishDate |
2010 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.733882 https://doi.org/10.1594/PANGAEA.733882 |
op_coverage |
LATITUDE: 87.890000 * LONGITUDE: 137.650000 * MINIMUM ELEVATION: -1251.0 m * MAXIMUM ELEVATION: -1251.0 m |
long_lat |
ENVELOPE(137.650000,137.650000,87.890000,87.890000) |
genre |
Arctic Arctic Ocean |
genre_facet |
Arctic Arctic Ocean |
op_relation |
Onodera, Jonaotaro; Takahashi, Kozo; Jordan, Richard William (2008): Eocene silicoflagellate and ebridian paleoceanography in the central Arctic Ocean. Paleoceanography, 23, PA1S15, https://doi.org/10.1029/2007PA001474 https://doi.pangaea.de/10.1594/PANGAEA.733882 https://doi.org/10.1594/PANGAEA.733882 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.73388210.1029/2007PA001474 |
_version_ |
1810292276828569600 |