Stable isotope record of foraminifera from the Barents Sea
We measured the oxygen isotopic composition of planktonic and benthic foraminifera in three cores collected at key positions to reconstruct the paleoceanography of the Barents Sea: core ASV 880 on the path of the northern branch of Atlantic water inflowing from the Arctic Ocean, core ASV 1200 in the...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.835326 2023-05-15T15:10:43+02:00 Stable isotope record of foraminifera from the Barents Sea Duplessy, Jean-Claude Cortijo, Elsa Ivanova, Elena V Khusid, Tatyana A Labeyrie, Laurent D Levitan, Mikhail A Murdmaa, Ivar O Paterne, Martine MEDIAN LATITUDE: 73.897937 * MEDIAN LONGITUDE: 45.430187 * SOUTH-BOUND LATITUDE: 70.550000 * WEST-BOUND LONGITUDE: 41.008300 * NORTH-BOUND LATITUDE: 75.906700 * EAST-BOUND LONGITUDE: 52.800000 * DATE/TIME START: 1998-08-31T00:00:00 * DATE/TIME END: 1998-08-31T00:00:00 2005-08-27 application/zip, 4 datasets https://doi.pangaea.de/10.1594/PANGAEA.835326 https://doi.org/10.1594/PANGAEA.835326 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.835326 https://doi.org/10.1594/PANGAEA.835326 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Duplessy, Jean-Claude; Cortijo, Elsa; Ivanova, Elena V; Khusid, Tatyana A; Labeyrie, Laurent D; Levitan, Mikhail A; Murdmaa, Ivar O; Paterne, Martine (2005): Paleoceanography of the Barents Sea during the Holocene. Paleoceanography, 20(4), PA4004, https://doi.org/10.1029/2004PA001116 Dataset 2005 ftpangaea https://doi.org/10.1594/PANGAEA.835326 https://doi.org/10.1029/2004PA001116 2023-01-20T07:33:20Z We measured the oxygen isotopic composition of planktonic and benthic foraminifera in three cores collected at key positions to reconstruct the paleoceanography of the Barents Sea: core ASV 880 on the path of the northern branch of Atlantic water inflowing from the Arctic Ocean, core ASV 1200 in the central basin near the polar front, and core ASV 1157 in the main area of brine formation. Modern seawater d18O measurements show that far from the coast, d18O variations are linearly linked to the salinity changes associated with sea ice melting. The foraminifer d18O records are dated by 14C measurements performed on mollusk shells, and they provide a detailed reconstruction of the paleoceanographic evolution of the Barents Sea during the Holocene. Four main steps were recognized: the terminal phase of the deglaciation with melting of the main glaciers, which were located on the surrounding continent and islands, the short thermal optimum from 7.8 ka B.P. to 6.8 ka B.P., a cold mid-Holocene phase with a large reduction of the inflow of Atlantic water, and the inception of the modern hydrological pattern by 4.7 ka B.P. Brine water formation was active during the whole Holocene. The paleoclimatic evolution of the Barents Sea was driven by both high-latitude summer insolation and the intensity of the Atlantic water inflow. Dataset Arctic Arctic Ocean Barents Sea Foraminifera* Sea ice PANGAEA - Data Publisher for Earth & Environmental Science Arctic Arctic Ocean Barents Sea Central Basin ENVELOPE(43.000,43.000,73.500,73.500) ENVELOPE(41.008300,52.800000,75.906700,70.550000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
description |
We measured the oxygen isotopic composition of planktonic and benthic foraminifera in three cores collected at key positions to reconstruct the paleoceanography of the Barents Sea: core ASV 880 on the path of the northern branch of Atlantic water inflowing from the Arctic Ocean, core ASV 1200 in the central basin near the polar front, and core ASV 1157 in the main area of brine formation. Modern seawater d18O measurements show that far from the coast, d18O variations are linearly linked to the salinity changes associated with sea ice melting. The foraminifer d18O records are dated by 14C measurements performed on mollusk shells, and they provide a detailed reconstruction of the paleoceanographic evolution of the Barents Sea during the Holocene. Four main steps were recognized: the terminal phase of the deglaciation with melting of the main glaciers, which were located on the surrounding continent and islands, the short thermal optimum from 7.8 ka B.P. to 6.8 ka B.P., a cold mid-Holocene phase with a large reduction of the inflow of Atlantic water, and the inception of the modern hydrological pattern by 4.7 ka B.P. Brine water formation was active during the whole Holocene. The paleoclimatic evolution of the Barents Sea was driven by both high-latitude summer insolation and the intensity of the Atlantic water inflow. |
format |
Dataset |
author |
Duplessy, Jean-Claude Cortijo, Elsa Ivanova, Elena V Khusid, Tatyana A Labeyrie, Laurent D Levitan, Mikhail A Murdmaa, Ivar O Paterne, Martine |
spellingShingle |
Duplessy, Jean-Claude Cortijo, Elsa Ivanova, Elena V Khusid, Tatyana A Labeyrie, Laurent D Levitan, Mikhail A Murdmaa, Ivar O Paterne, Martine Stable isotope record of foraminifera from the Barents Sea |
author_facet |
Duplessy, Jean-Claude Cortijo, Elsa Ivanova, Elena V Khusid, Tatyana A Labeyrie, Laurent D Levitan, Mikhail A Murdmaa, Ivar O Paterne, Martine |
author_sort |
Duplessy, Jean-Claude |
title |
Stable isotope record of foraminifera from the Barents Sea |
title_short |
Stable isotope record of foraminifera from the Barents Sea |
title_full |
Stable isotope record of foraminifera from the Barents Sea |
title_fullStr |
Stable isotope record of foraminifera from the Barents Sea |
title_full_unstemmed |
Stable isotope record of foraminifera from the Barents Sea |
title_sort |
stable isotope record of foraminifera from the barents sea |
publisher |
PANGAEA |
publishDate |
2005 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.835326 https://doi.org/10.1594/PANGAEA.835326 |
op_coverage |
MEDIAN LATITUDE: 73.897937 * MEDIAN LONGITUDE: 45.430187 * SOUTH-BOUND LATITUDE: 70.550000 * WEST-BOUND LONGITUDE: 41.008300 * NORTH-BOUND LATITUDE: 75.906700 * EAST-BOUND LONGITUDE: 52.800000 * DATE/TIME START: 1998-08-31T00:00:00 * DATE/TIME END: 1998-08-31T00:00:00 |
long_lat |
ENVELOPE(43.000,43.000,73.500,73.500) ENVELOPE(41.008300,52.800000,75.906700,70.550000) |
geographic |
Arctic Arctic Ocean Barents Sea Central Basin |
geographic_facet |
Arctic Arctic Ocean Barents Sea Central Basin |
genre |
Arctic Arctic Ocean Barents Sea Foraminifera* Sea ice |
genre_facet |
Arctic Arctic Ocean Barents Sea Foraminifera* Sea ice |
op_source |
Supplement to: Duplessy, Jean-Claude; Cortijo, Elsa; Ivanova, Elena V; Khusid, Tatyana A; Labeyrie, Laurent D; Levitan, Mikhail A; Murdmaa, Ivar O; Paterne, Martine (2005): Paleoceanography of the Barents Sea during the Holocene. Paleoceanography, 20(4), PA4004, https://doi.org/10.1029/2004PA001116 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.835326 https://doi.org/10.1594/PANGAEA.835326 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.835326 https://doi.org/10.1029/2004PA001116 |
_version_ |
1766341688142331904 |