DataSheet1_Intermediate- and Deep-Water Oxygenation History in the Subarctic North Pacific During the Last Deglacial Period.docx
Deglacial dissolved oxygen concentrations were semiquantitatively estimated for intermediate and deep waters in the western Bering Sea using the benthic foraminiferal-based transfer function developed by Tetard et al. (2017), Tetard et al. (2021a). Benthic foraminiferal assemblages were analyzed fro...
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ftfrontimediafig:oai:figshare.com:article/16565490 2023-05-15T13:57:38+02:00 DataSheet1_Intermediate- and Deep-Water Oxygenation History in the Subarctic North Pacific During the Last Deglacial Period.docx Ekaterina Ovsepyan Elena Ivanova Martin Tetard Lars Max Ralf Tiedemann 2021-09-03T05:41:34Z https://doi.org/10.3389/feart.2021.638069.s001 https://figshare.com/articles/dataset/DataSheet1_Intermediate-_and_Deep-Water_Oxygenation_History_in_the_Subarctic_North_Pacific_During_the_Last_Deglacial_Period_docx/16565490 unknown doi:10.3389/feart.2021.638069.s001 https://figshare.com/articles/dataset/DataSheet1_Intermediate-_and_Deep-Water_Oxygenation_History_in_the_Subarctic_North_Pacific_During_the_Last_Deglacial_Period_docx/16565490 CC BY 4.0 CC-BY Solid Earth Sciences Climate Science Atmospheric Sciences not elsewhere classified Exploration Geochemistry Inorganic Geochemistry Isotope Geochemistry Organic Geochemistry Geochemistry not elsewhere classified Igneous and Metamorphic Petrology Ore Deposit Petrology Palaeontology (incl. Palynology) Structural Geology Tectonics Volcanology Geology not elsewhere classified Seismology and Seismic Exploration Glaciology Hydrogeology Natural Hazards Quaternary Environments Earth Sciences not elsewhere classified Evolutionary Impacts of Climate Change oxygen minimum zone ocean circulation sea-surface bioproductivity teleconnections transfer function benthic foraminifers North Pacific Southern Ocean Dataset 2021 ftfrontimediafig https://doi.org/10.3389/feart.2021.638069.s001 2021-09-08T23:01:30Z Deglacial dissolved oxygen concentrations were semiquantitatively estimated for intermediate and deep waters in the western Bering Sea using the benthic foraminiferal-based transfer function developed by Tetard et al. (2017), Tetard et al. (2021a). Benthic foraminiferal assemblages were analyzed from two sediment cores, SO201-2-85KL (963 m below sea level (mbsl), the intermediate-water core) and SO201-2-77KL (2,163 mbsl, the deep-water core), collected from the Shirshov Ridge in the western Bering Sea. Intermediate waters were characterized by an oxygen content of ∼2.0 ml L −1 or more during the Last Glacial Maximum (LGM)–Heinrich 1 (H1), around 0.15 ml L −1 during the middle Bølling/Allerød (B/A)–Early Holocene (EH), and a slight increase in [O 2 ] (∼0.20 ml L −1 ) at the beginning of the Younger Dryas (YD) mbsl. Deep-water oxygen concentrations ranged from 0.9 to 2.5 ml L −1 during the LGM–H1, hovered around 0.08 ml L −1 at the onset of B/A, and were within the 0.30–0.85 ml L −1 range from the middle B/A to the first half of YD and the 1.0–1.7 ml L −1 range from the middle to late Holocene. The [O 2 ] variations remind the δ 18 O NGRIP record thereby providing evidence for a link between the Bering Sea oxygenation at intermediate depths and the deglacial North Atlantic climate. Changes in the deep-water oxygen concentrations mostly resemble the deglacial dynamics of the Southern Ocean upwelling intensity which is supposed to be closely coupled with the Antarctic climate variability. This coherence suggests that deglacial deep-water [O 2 ] variations were primarily controlled by changes in the circulation of southern-sourced waters. Nevertheless, the signal from the south at the deeper site might be amplified by the Northern Hemisphere climate warming via an increase in sea-surface bioproductivity during the B/A and EH. A semi-enclosed position of the Bering Sea and sea-level oscillations might significantly contribute to the magnitude of oxygenation changes in the study area during the last deglaciation. ... Dataset Antarc* Antarctic Bering Sea NGRIP North Atlantic Southern Ocean Subarctic Frontiers: Figshare Antarctic Southern Ocean The Antarctic Bering Sea Pacific Shirshov Ridge ENVELOPE(171.000,171.000,57.500,57.500) |
institution |
Open Polar |
collection |
Frontiers: Figshare |
op_collection_id |
ftfrontimediafig |
language |
unknown |
topic |
Solid Earth Sciences Climate Science Atmospheric Sciences not elsewhere classified Exploration Geochemistry Inorganic Geochemistry Isotope Geochemistry Organic Geochemistry Geochemistry not elsewhere classified Igneous and Metamorphic Petrology Ore Deposit Petrology Palaeontology (incl. Palynology) Structural Geology Tectonics Volcanology Geology not elsewhere classified Seismology and Seismic Exploration Glaciology Hydrogeology Natural Hazards Quaternary Environments Earth Sciences not elsewhere classified Evolutionary Impacts of Climate Change oxygen minimum zone ocean circulation sea-surface bioproductivity teleconnections transfer function benthic foraminifers North Pacific Southern Ocean |
spellingShingle |
Solid Earth Sciences Climate Science Atmospheric Sciences not elsewhere classified Exploration Geochemistry Inorganic Geochemistry Isotope Geochemistry Organic Geochemistry Geochemistry not elsewhere classified Igneous and Metamorphic Petrology Ore Deposit Petrology Palaeontology (incl. Palynology) Structural Geology Tectonics Volcanology Geology not elsewhere classified Seismology and Seismic Exploration Glaciology Hydrogeology Natural Hazards Quaternary Environments Earth Sciences not elsewhere classified Evolutionary Impacts of Climate Change oxygen minimum zone ocean circulation sea-surface bioproductivity teleconnections transfer function benthic foraminifers North Pacific Southern Ocean Ekaterina Ovsepyan Elena Ivanova Martin Tetard Lars Max Ralf Tiedemann DataSheet1_Intermediate- and Deep-Water Oxygenation History in the Subarctic North Pacific During the Last Deglacial Period.docx |
topic_facet |
Solid Earth Sciences Climate Science Atmospheric Sciences not elsewhere classified Exploration Geochemistry Inorganic Geochemistry Isotope Geochemistry Organic Geochemistry Geochemistry not elsewhere classified Igneous and Metamorphic Petrology Ore Deposit Petrology Palaeontology (incl. Palynology) Structural Geology Tectonics Volcanology Geology not elsewhere classified Seismology and Seismic Exploration Glaciology Hydrogeology Natural Hazards Quaternary Environments Earth Sciences not elsewhere classified Evolutionary Impacts of Climate Change oxygen minimum zone ocean circulation sea-surface bioproductivity teleconnections transfer function benthic foraminifers North Pacific Southern Ocean |
description |
Deglacial dissolved oxygen concentrations were semiquantitatively estimated for intermediate and deep waters in the western Bering Sea using the benthic foraminiferal-based transfer function developed by Tetard et al. (2017), Tetard et al. (2021a). Benthic foraminiferal assemblages were analyzed from two sediment cores, SO201-2-85KL (963 m below sea level (mbsl), the intermediate-water core) and SO201-2-77KL (2,163 mbsl, the deep-water core), collected from the Shirshov Ridge in the western Bering Sea. Intermediate waters were characterized by an oxygen content of ∼2.0 ml L −1 or more during the Last Glacial Maximum (LGM)–Heinrich 1 (H1), around 0.15 ml L −1 during the middle Bølling/Allerød (B/A)–Early Holocene (EH), and a slight increase in [O 2 ] (∼0.20 ml L −1 ) at the beginning of the Younger Dryas (YD) mbsl. Deep-water oxygen concentrations ranged from 0.9 to 2.5 ml L −1 during the LGM–H1, hovered around 0.08 ml L −1 at the onset of B/A, and were within the 0.30–0.85 ml L −1 range from the middle B/A to the first half of YD and the 1.0–1.7 ml L −1 range from the middle to late Holocene. The [O 2 ] variations remind the δ 18 O NGRIP record thereby providing evidence for a link between the Bering Sea oxygenation at intermediate depths and the deglacial North Atlantic climate. Changes in the deep-water oxygen concentrations mostly resemble the deglacial dynamics of the Southern Ocean upwelling intensity which is supposed to be closely coupled with the Antarctic climate variability. This coherence suggests that deglacial deep-water [O 2 ] variations were primarily controlled by changes in the circulation of southern-sourced waters. Nevertheless, the signal from the south at the deeper site might be amplified by the Northern Hemisphere climate warming via an increase in sea-surface bioproductivity during the B/A and EH. A semi-enclosed position of the Bering Sea and sea-level oscillations might significantly contribute to the magnitude of oxygenation changes in the study area during the last deglaciation. ... |
format |
Dataset |
author |
Ekaterina Ovsepyan Elena Ivanova Martin Tetard Lars Max Ralf Tiedemann |
author_facet |
Ekaterina Ovsepyan Elena Ivanova Martin Tetard Lars Max Ralf Tiedemann |
author_sort |
Ekaterina Ovsepyan |
title |
DataSheet1_Intermediate- and Deep-Water Oxygenation History in the Subarctic North Pacific During the Last Deglacial Period.docx |
title_short |
DataSheet1_Intermediate- and Deep-Water Oxygenation History in the Subarctic North Pacific During the Last Deglacial Period.docx |
title_full |
DataSheet1_Intermediate- and Deep-Water Oxygenation History in the Subarctic North Pacific During the Last Deglacial Period.docx |
title_fullStr |
DataSheet1_Intermediate- and Deep-Water Oxygenation History in the Subarctic North Pacific During the Last Deglacial Period.docx |
title_full_unstemmed |
DataSheet1_Intermediate- and Deep-Water Oxygenation History in the Subarctic North Pacific During the Last Deglacial Period.docx |
title_sort |
datasheet1_intermediate- and deep-water oxygenation history in the subarctic north pacific during the last deglacial period.docx |
publishDate |
2021 |
url |
https://doi.org/10.3389/feart.2021.638069.s001 https://figshare.com/articles/dataset/DataSheet1_Intermediate-_and_Deep-Water_Oxygenation_History_in_the_Subarctic_North_Pacific_During_the_Last_Deglacial_Period_docx/16565490 |
long_lat |
ENVELOPE(171.000,171.000,57.500,57.500) |
geographic |
Antarctic Southern Ocean The Antarctic Bering Sea Pacific Shirshov Ridge |
geographic_facet |
Antarctic Southern Ocean The Antarctic Bering Sea Pacific Shirshov Ridge |
genre |
Antarc* Antarctic Bering Sea NGRIP North Atlantic Southern Ocean Subarctic |
genre_facet |
Antarc* Antarctic Bering Sea NGRIP North Atlantic Southern Ocean Subarctic |
op_relation |
doi:10.3389/feart.2021.638069.s001 https://figshare.com/articles/dataset/DataSheet1_Intermediate-_and_Deep-Water_Oxygenation_History_in_the_Subarctic_North_Pacific_During_the_Last_Deglacial_Period_docx/16565490 |
op_rights |
CC BY 4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.3389/feart.2021.638069.s001 |
_version_ |
1766265359922364416 |