A high-resolution record from IODP Site 323-U1440
Millennial-scale climate events in the North Pacific are thought to be related to changes in the circulation of North Pacific Intermediate Water, which may have formed in the Bering Sea in the past. To advance our understanding of the mechanisms that underlie millennial-scale events, Bering Sea sedi...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.824452 2024-09-15T17:59:27+00:00 A high-resolution record from IODP Site 323-U1440 Schlung, Shilo A Ravelo, Ana Christina Aiello, Ivano W Andreasen, Dyke Cook, Mea S Drake, Michelle K Dyez, Kelsey A Guilderson, Thomas P LaRiviere, Jonathan P Stroynowski, Zuzanna N Takahashi, Kozo MEDIAN LATITUDE: 53.400010 * MEDIAN LONGITUDE: -179.521466 * SOUTH-BOUND LATITUDE: 53.400000 * WEST-BOUND LONGITUDE: -179.521622 * NORTH-BOUND LATITUDE: 53.400013 * EAST-BOUND LONGITUDE: -179.521000 * DATE/TIME START: 2009-07-22T00:00:00 * DATE/TIME END: 2009-07-22T00:00:00 2013 application/zip, 8 datasets https://doi.pangaea.de/10.1594/PANGAEA.824452 https://doi.org/10.1594/PANGAEA.824452 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.824452 https://doi.org/10.1594/PANGAEA.824452 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: Schlung, Shilo A; Ravelo, Ana Christina; Aiello, Ivano W; Andreasen, Dyke; Cook, Mea S; Drake, Michelle K; Dyez, Kelsey A; Guilderson, Thomas P; LaRiviere, Jonathan P; Stroynowski, Zuzanna N; Takahashi, Kozo (2013): Millennial-scale climate change and intermediate water circulation in the Bering Sea from 90 ka: A high-resolution record from IODP Site U1340. Paleoceanography, 28(1), 54-67, https://doi.org/10.1029/2012PA002365 Integrated Ocean Drilling Program / International Ocean Discovery Program IODP dataset publication series 2013 ftpangaea https://doi.org/10.1594/PANGAEA.82445210.1029/2012PA002365 2024-07-24T02:31:21Z Millennial-scale climate events in the North Pacific are thought to be related to changes in the circulation of North Pacific Intermediate Water, which may have formed in the Bering Sea in the past. To advance our understanding of the mechanisms that underlie millennial-scale events, Bering Sea sediment cores from the Integrated Ocean Drilling Program site U1340 were used to construct high-resolution, multiproxy climate records of the last 90,000 years. Sediment density records show millennial-scale events resembling Dansgaard-Oeschger events, several of which are laminated. Interstadials were characterized by 3–5 °C warming, increased productivity driven by upwelling, and reduced benthic oxygenation. Bering Sea intermediate water also changed over longer timescales; our records show the presence of intermediate water with lower salinity and higher oxygen content than modern beginning around 60 ka and persisting until the beginning of the deglaciation. The Bølling-Allerød was characterized by high productivity, laminated sediments, and strong denitrification signature. Our data support the idea that productivity-derived changes in oxygenation at intermediate water source regions may have contributed to the intensification of the North Pacific–wide oxygen minima during the Bølling-Allerød. Other/Unknown Material Bering Sea Dansgaard-Oeschger events PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(-179.521622,-179.521000,53.400013,53.400000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Integrated Ocean Drilling Program / International Ocean Discovery Program IODP |
spellingShingle |
Integrated Ocean Drilling Program / International Ocean Discovery Program IODP Schlung, Shilo A Ravelo, Ana Christina Aiello, Ivano W Andreasen, Dyke Cook, Mea S Drake, Michelle K Dyez, Kelsey A Guilderson, Thomas P LaRiviere, Jonathan P Stroynowski, Zuzanna N Takahashi, Kozo A high-resolution record from IODP Site 323-U1440 |
topic_facet |
Integrated Ocean Drilling Program / International Ocean Discovery Program IODP |
description |
Millennial-scale climate events in the North Pacific are thought to be related to changes in the circulation of North Pacific Intermediate Water, which may have formed in the Bering Sea in the past. To advance our understanding of the mechanisms that underlie millennial-scale events, Bering Sea sediment cores from the Integrated Ocean Drilling Program site U1340 were used to construct high-resolution, multiproxy climate records of the last 90,000 years. Sediment density records show millennial-scale events resembling Dansgaard-Oeschger events, several of which are laminated. Interstadials were characterized by 3–5 °C warming, increased productivity driven by upwelling, and reduced benthic oxygenation. Bering Sea intermediate water also changed over longer timescales; our records show the presence of intermediate water with lower salinity and higher oxygen content than modern beginning around 60 ka and persisting until the beginning of the deglaciation. The Bølling-Allerød was characterized by high productivity, laminated sediments, and strong denitrification signature. Our data support the idea that productivity-derived changes in oxygenation at intermediate water source regions may have contributed to the intensification of the North Pacific–wide oxygen minima during the Bølling-Allerød. |
format |
Other/Unknown Material |
author |
Schlung, Shilo A Ravelo, Ana Christina Aiello, Ivano W Andreasen, Dyke Cook, Mea S Drake, Michelle K Dyez, Kelsey A Guilderson, Thomas P LaRiviere, Jonathan P Stroynowski, Zuzanna N Takahashi, Kozo |
author_facet |
Schlung, Shilo A Ravelo, Ana Christina Aiello, Ivano W Andreasen, Dyke Cook, Mea S Drake, Michelle K Dyez, Kelsey A Guilderson, Thomas P LaRiviere, Jonathan P Stroynowski, Zuzanna N Takahashi, Kozo |
author_sort |
Schlung, Shilo A |
title |
A high-resolution record from IODP Site 323-U1440 |
title_short |
A high-resolution record from IODP Site 323-U1440 |
title_full |
A high-resolution record from IODP Site 323-U1440 |
title_fullStr |
A high-resolution record from IODP Site 323-U1440 |
title_full_unstemmed |
A high-resolution record from IODP Site 323-U1440 |
title_sort |
high-resolution record from iodp site 323-u1440 |
publisher |
PANGAEA |
publishDate |
2013 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.824452 https://doi.org/10.1594/PANGAEA.824452 |
op_coverage |
MEDIAN LATITUDE: 53.400010 * MEDIAN LONGITUDE: -179.521466 * SOUTH-BOUND LATITUDE: 53.400000 * WEST-BOUND LONGITUDE: -179.521622 * NORTH-BOUND LATITUDE: 53.400013 * EAST-BOUND LONGITUDE: -179.521000 * DATE/TIME START: 2009-07-22T00:00:00 * DATE/TIME END: 2009-07-22T00:00:00 |
long_lat |
ENVELOPE(-179.521622,-179.521000,53.400013,53.400000) |
genre |
Bering Sea Dansgaard-Oeschger events |
genre_facet |
Bering Sea Dansgaard-Oeschger events |
op_source |
Supplement to: Schlung, Shilo A; Ravelo, Ana Christina; Aiello, Ivano W; Andreasen, Dyke; Cook, Mea S; Drake, Michelle K; Dyez, Kelsey A; Guilderson, Thomas P; LaRiviere, Jonathan P; Stroynowski, Zuzanna N; Takahashi, Kozo (2013): Millennial-scale climate change and intermediate water circulation in the Bering Sea from 90 ka: A high-resolution record from IODP Site U1340. Paleoceanography, 28(1), 54-67, https://doi.org/10.1029/2012PA002365 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.824452 https://doi.org/10.1594/PANGAEA.824452 |
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.82445210.1029/2012PA002365 |
_version_ |
1810436538702495744 |