Authigenic uranium, mass accumulation rates, benthic δ¹³C and SST during the last interglacial period of ODP Site 177-1094
Southern Ocean sediments reveal a spike in authigenic uranium 127,000 years ago, within the last interglacial, reflecting decreased oxygenation of deep water by Antarctic Bottom Water (AABW). Unlike ice age reductions in AABW, the interglacial stagnation event appears decoupled from open ocean condi...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.839454 2023-05-15T13:44:46+02:00 Authigenic uranium, mass accumulation rates, benthic δ¹³C and SST during the last interglacial period of ODP Site 177-1094 Hayes, Christopher T Martínez‐García, Alfredo Hasenfratz, Albin Jaccard, Samuel L Hodell, David A Sigman, Daniel M Haug, Gerald H Anderson, Robert F LATITUDE: -53.180350 * LONGITUDE: 5.130333 * DATE/TIME START: 1998-01-20T00:00:00 * DATE/TIME END: 1998-01-20T00:00:00 2014-11-25 application/zip, 2 datasets https://doi.pangaea.de/10.1594/PANGAEA.839454 https://doi.org/10.1594/PANGAEA.839454 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.839454 https://doi.org/10.1594/PANGAEA.839454 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Hayes, Christopher T; Martínez‐García, Alfredo; Hasenfratz, Albin; Jaccard, Samuel L; Hodell, David A; Sigman, Daniel M; Haug, Gerald H; Anderson, Robert F (2014): A stagnation event in the deep South Atlantic during the last interglacial period. Science, 346(6216), 1514-1517, https://doi.org/10.1126/science.1256620 177-1094 COMPCORE Composite Core Joides Resolution Leg177 Ocean Drilling Program ODP South Atlantic Ocean Dataset 2014 ftpangaea https://doi.org/10.1594/PANGAEA.839454 https://doi.org/10.1126/science.1256620 2023-01-20T07:33:22Z Southern Ocean sediments reveal a spike in authigenic uranium 127,000 years ago, within the last interglacial, reflecting decreased oxygenation of deep water by Antarctic Bottom Water (AABW). Unlike ice age reductions in AABW, the interglacial stagnation event appears decoupled from open ocean conditions and may have resulted from coastal freshening due to mass loss from the Antarctic ice sheet. AABW reduction coincided with increased North Atlantic Deep Water (NADW) formation, and the subsequent reinvigoration in AABW coincided with reduced NADW formation. Thus, alternation of deep water formation between the Antarctic and the North Atlantic, believed to characterize ice ages, apparently also occurs in warm climates. Dataset Antarc* Antarctic Ice Sheet NADW North Atlantic Deep Water North Atlantic South Atlantic Ocean Southern Ocean PANGAEA - Data Publisher for Earth & Environmental Science Antarctic Southern Ocean The Antarctic ENVELOPE(5.130333,5.130333,-53.180350,-53.180350) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
177-1094 COMPCORE Composite Core Joides Resolution Leg177 Ocean Drilling Program ODP South Atlantic Ocean |
spellingShingle |
177-1094 COMPCORE Composite Core Joides Resolution Leg177 Ocean Drilling Program ODP South Atlantic Ocean Hayes, Christopher T Martínez‐García, Alfredo Hasenfratz, Albin Jaccard, Samuel L Hodell, David A Sigman, Daniel M Haug, Gerald H Anderson, Robert F Authigenic uranium, mass accumulation rates, benthic δ¹³C and SST during the last interglacial period of ODP Site 177-1094 |
topic_facet |
177-1094 COMPCORE Composite Core Joides Resolution Leg177 Ocean Drilling Program ODP South Atlantic Ocean |
description |
Southern Ocean sediments reveal a spike in authigenic uranium 127,000 years ago, within the last interglacial, reflecting decreased oxygenation of deep water by Antarctic Bottom Water (AABW). Unlike ice age reductions in AABW, the interglacial stagnation event appears decoupled from open ocean conditions and may have resulted from coastal freshening due to mass loss from the Antarctic ice sheet. AABW reduction coincided with increased North Atlantic Deep Water (NADW) formation, and the subsequent reinvigoration in AABW coincided with reduced NADW formation. Thus, alternation of deep water formation between the Antarctic and the North Atlantic, believed to characterize ice ages, apparently also occurs in warm climates. |
format |
Dataset |
author |
Hayes, Christopher T Martínez‐García, Alfredo Hasenfratz, Albin Jaccard, Samuel L Hodell, David A Sigman, Daniel M Haug, Gerald H Anderson, Robert F |
author_facet |
Hayes, Christopher T Martínez‐García, Alfredo Hasenfratz, Albin Jaccard, Samuel L Hodell, David A Sigman, Daniel M Haug, Gerald H Anderson, Robert F |
author_sort |
Hayes, Christopher T |
title |
Authigenic uranium, mass accumulation rates, benthic δ¹³C and SST during the last interglacial period of ODP Site 177-1094 |
title_short |
Authigenic uranium, mass accumulation rates, benthic δ¹³C and SST during the last interglacial period of ODP Site 177-1094 |
title_full |
Authigenic uranium, mass accumulation rates, benthic δ¹³C and SST during the last interglacial period of ODP Site 177-1094 |
title_fullStr |
Authigenic uranium, mass accumulation rates, benthic δ¹³C and SST during the last interglacial period of ODP Site 177-1094 |
title_full_unstemmed |
Authigenic uranium, mass accumulation rates, benthic δ¹³C and SST during the last interglacial period of ODP Site 177-1094 |
title_sort |
authigenic uranium, mass accumulation rates, benthic δ¹³c and sst during the last interglacial period of odp site 177-1094 |
publisher |
PANGAEA |
publishDate |
2014 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.839454 https://doi.org/10.1594/PANGAEA.839454 |
op_coverage |
LATITUDE: -53.180350 * LONGITUDE: 5.130333 * DATE/TIME START: 1998-01-20T00:00:00 * DATE/TIME END: 1998-01-20T00:00:00 |
long_lat |
ENVELOPE(5.130333,5.130333,-53.180350,-53.180350) |
geographic |
Antarctic Southern Ocean The Antarctic |
geographic_facet |
Antarctic Southern Ocean The Antarctic |
genre |
Antarc* Antarctic Ice Sheet NADW North Atlantic Deep Water North Atlantic South Atlantic Ocean Southern Ocean |
genre_facet |
Antarc* Antarctic Ice Sheet NADW North Atlantic Deep Water North Atlantic South Atlantic Ocean Southern Ocean |
op_source |
Supplement to: Hayes, Christopher T; Martínez‐García, Alfredo; Hasenfratz, Albin; Jaccard, Samuel L; Hodell, David A; Sigman, Daniel M; Haug, Gerald H; Anderson, Robert F (2014): A stagnation event in the deep South Atlantic during the last interglacial period. Science, 346(6216), 1514-1517, https://doi.org/10.1126/science.1256620 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.839454 https://doi.org/10.1594/PANGAEA.839454 |
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.839454 https://doi.org/10.1126/science.1256620 |
_version_ |
1766206167011295232 |