High-resolution planktic stable isotope and trace element record of ODP Hole 161-976
Multi-decadal to centennial planktic d18O and Mg/Ca records were generated at ODP976 in the Alboran Sea. The site is in the flow path of Atlantic inflow waters entering the Mediterranean and captured North Atlantic signals through the surface inflow and the atmosphere. The records reveal similar cli...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.847287 2024-09-15T18:12:34+00:00 High-resolution planktic stable isotope and trace element record of ODP Hole 161-976 Jimenez-Amat, Patricia Zahn, Rainer LATITUDE: 36.205367 * LONGITUDE: -4.312667 * DATE/TIME START: 1995-05-21T00:00:00 * DATE/TIME END: 1995-06-08T00:00:00 2015 application/zip, 2 datasets https://doi.pangaea.de/10.1594/PANGAEA.847287 https://doi.org/10.1594/PANGAEA.847287 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.847287 https://doi.org/10.1594/PANGAEA.847287 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: Jimenez-Amat, Patricia; Zahn, Rainer (2015): Offset Timing of Climate Oscillations During the Last two Glacial-Interglacial Transitions Connected with Large-Scale Freshwater Perturbation. Paleoceanography, 30, https://doi.org/10.1002/2014PA002710 161-976 Alboran Sea COMPCORE Composite Core Joides Resolution Leg161 Ocean Drilling Program ODP dataset publication series 2015 ftpangaea https://doi.org/10.1594/PANGAEA.84728710.1002/2014PA002710 2024-07-24T02:31:21Z Multi-decadal to centennial planktic d18O and Mg/Ca records were generated at ODP976 in the Alboran Sea. The site is in the flow path of Atlantic inflow waters entering the Mediterranean and captured North Atlantic signals through the surface inflow and the atmosphere. The records reveal similar climatic oscillations during the last two glacial-to-interglacial transitions, albeit with a different temporal pacing. Glacial termination 1 (T1) was marked by Heinrich event 1 (H1), post-H1 Bolling/Allerod (B/A) warming and Younger Dryas (YD) cooling. During T2 the H11 d18O anomaly was twice as high and lasted 30% longer than during H1. The post-H11 warming marked the start of MIS5e while the subsequent YD-style cooling occurred during early MIS5e. The post-H11 temperature increase at ODP976 matched the sudden Asian Monsoon Termination II at 129 ka BP. Extending the 230Th-dated speleothem timescale to ODP976 suggests glacial conditions in the Northeast Atlantic region were terminated abruptly and interglacial warmth was reached in less than a millennium. The early-MIS5e cooling and freshening at ODP976 coincided with similar changes at North Atlantic sites suggesting this was a basin-wide event. By analogy with T1 we argue that this was a YD-type event that was shifted into the early stages of the last interglacial period. This scenario is consistent with evidence from northern North Atlantic and Nordic Sea sites that the continuing disintegration of the large Saalian Stage (MIS6) ice sheet in Eurasia delayed the advection of warm North Atlantic waters and full-strength convective overturn until later stages of MIS5e. Other/Unknown Material Ice Sheet Nordic Sea North Atlantic Northeast Atlantic PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(-4.312667,-4.312667,36.205367,36.205367) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
161-976 Alboran Sea COMPCORE Composite Core Joides Resolution Leg161 Ocean Drilling Program ODP |
spellingShingle |
161-976 Alboran Sea COMPCORE Composite Core Joides Resolution Leg161 Ocean Drilling Program ODP Jimenez-Amat, Patricia Zahn, Rainer High-resolution planktic stable isotope and trace element record of ODP Hole 161-976 |
topic_facet |
161-976 Alboran Sea COMPCORE Composite Core Joides Resolution Leg161 Ocean Drilling Program ODP |
description |
Multi-decadal to centennial planktic d18O and Mg/Ca records were generated at ODP976 in the Alboran Sea. The site is in the flow path of Atlantic inflow waters entering the Mediterranean and captured North Atlantic signals through the surface inflow and the atmosphere. The records reveal similar climatic oscillations during the last two glacial-to-interglacial transitions, albeit with a different temporal pacing. Glacial termination 1 (T1) was marked by Heinrich event 1 (H1), post-H1 Bolling/Allerod (B/A) warming and Younger Dryas (YD) cooling. During T2 the H11 d18O anomaly was twice as high and lasted 30% longer than during H1. The post-H11 warming marked the start of MIS5e while the subsequent YD-style cooling occurred during early MIS5e. The post-H11 temperature increase at ODP976 matched the sudden Asian Monsoon Termination II at 129 ka BP. Extending the 230Th-dated speleothem timescale to ODP976 suggests glacial conditions in the Northeast Atlantic region were terminated abruptly and interglacial warmth was reached in less than a millennium. The early-MIS5e cooling and freshening at ODP976 coincided with similar changes at North Atlantic sites suggesting this was a basin-wide event. By analogy with T1 we argue that this was a YD-type event that was shifted into the early stages of the last interglacial period. This scenario is consistent with evidence from northern North Atlantic and Nordic Sea sites that the continuing disintegration of the large Saalian Stage (MIS6) ice sheet in Eurasia delayed the advection of warm North Atlantic waters and full-strength convective overturn until later stages of MIS5e. |
format |
Other/Unknown Material |
author |
Jimenez-Amat, Patricia Zahn, Rainer |
author_facet |
Jimenez-Amat, Patricia Zahn, Rainer |
author_sort |
Jimenez-Amat, Patricia |
title |
High-resolution planktic stable isotope and trace element record of ODP Hole 161-976 |
title_short |
High-resolution planktic stable isotope and trace element record of ODP Hole 161-976 |
title_full |
High-resolution planktic stable isotope and trace element record of ODP Hole 161-976 |
title_fullStr |
High-resolution planktic stable isotope and trace element record of ODP Hole 161-976 |
title_full_unstemmed |
High-resolution planktic stable isotope and trace element record of ODP Hole 161-976 |
title_sort |
high-resolution planktic stable isotope and trace element record of odp hole 161-976 |
publisher |
PANGAEA |
publishDate |
2015 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.847287 https://doi.org/10.1594/PANGAEA.847287 |
op_coverage |
LATITUDE: 36.205367 * LONGITUDE: -4.312667 * DATE/TIME START: 1995-05-21T00:00:00 * DATE/TIME END: 1995-06-08T00:00:00 |
long_lat |
ENVELOPE(-4.312667,-4.312667,36.205367,36.205367) |
genre |
Ice Sheet Nordic Sea North Atlantic Northeast Atlantic |
genre_facet |
Ice Sheet Nordic Sea North Atlantic Northeast Atlantic |
op_source |
Supplement to: Jimenez-Amat, Patricia; Zahn, Rainer (2015): Offset Timing of Climate Oscillations During the Last two Glacial-Interglacial Transitions Connected with Large-Scale Freshwater Perturbation. Paleoceanography, 30, https://doi.org/10.1002/2014PA002710 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.847287 https://doi.org/10.1594/PANGAEA.847287 |
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.84728710.1002/2014PA002710 |
_version_ |
1810450149151866880 |