Late Pliocene and early Pleistocene rock-magnetic record of IODP Site 306-U1314 ...
Knowledge of the evolution of North Atlantic Deep Water (NADW) is key to understanding the past evolution of the climatic system. We developed a new rock-magnetic method to determine the constituent magnetic minerals of sediments and report on the evolution of NADW during 2.2-2.9 Ma. We measured iso...
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ftdatacite:10.1594/pangaea.848329 2024-09-09T19:47:30+00:00 Late Pliocene and early Pleistocene rock-magnetic record of IODP Site 306-U1314 ... Sato, Masahiko Makio, Masato Hayashi, T Ohno, Masao 2015 text/tab-separated-values https://dx.doi.org/10.1594/pangaea.848329 https://doi.pangaea.de/10.1594/PANGAEA.848329 en eng PANGAEA https://dx.doi.org/10.1002/2015gl063307 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 DEPTH, sediment/rock AGE High-coerecivity component Low-coerecivity component Residual Isothermal Remanent Magnetization, intensity Isothermal Remanent Magnetization, mode of gradient Isothermal Remanent Magnetization, median of gradient Isothermal Remanent Magnetization, mean of gradient Composite Core Exp306 Joides Resolution Integrated Ocean Drilling Program / International Ocean Discovery Program IODP dataset Supplementary Dataset Dataset 2015 ftdatacite https://doi.org/10.1594/pangaea.84832910.1002/2015gl063307 2024-08-01T10:53:32Z Knowledge of the evolution of North Atlantic Deep Water (NADW) is key to understanding the past evolution of the climatic system. We developed a new rock-magnetic method to determine the constituent magnetic minerals of sediments and report on the evolution of NADW during 2.2-2.9 Ma. We measured isothermal remanence acquisition curves of North Atlantic deep-sea sediments drilled at the Gardar Drift and decomposed the first derivatives of these curves into high-coercivity and low-coercivity components. Residuals of the decomposition were sufficiently small throughout the study interval, confirming that the Gardar Drift sediments represent a mixing of the two end-members. Fractional changes of the high-coercivity component represent variation of the Iceland-Scotland Overflow Water, a branch of NADW formed at the Nordic Seas. The high-coercivity component increased significantly during an interglacial period just after ~2.68 Ma, which suggests that NADW formation in the Nordic Seas abruptly intensified at this ... : Supplement to: Sato, Masahiko; Makio, Masato; Hayashi, T; Ohno, Masao (2015): Abrupt intensification of North Atlantic Deep Water formation at the Nordic Seas during the late Pliocene climate transition. Geophysical Research Letters, 42(12), 4949-4955 ... Dataset Iceland NADW Nordic Seas North Atlantic Deep Water North Atlantic New Rock DataCite New Rock ENVELOPE(-60.734,-60.734,-63.007,-63.007) |
institution |
Open Polar |
collection |
DataCite |
op_collection_id |
ftdatacite |
language |
English |
topic |
DEPTH, sediment/rock AGE High-coerecivity component Low-coerecivity component Residual Isothermal Remanent Magnetization, intensity Isothermal Remanent Magnetization, mode of gradient Isothermal Remanent Magnetization, median of gradient Isothermal Remanent Magnetization, mean of gradient Composite Core Exp306 Joides Resolution Integrated Ocean Drilling Program / International Ocean Discovery Program IODP |
spellingShingle |
DEPTH, sediment/rock AGE High-coerecivity component Low-coerecivity component Residual Isothermal Remanent Magnetization, intensity Isothermal Remanent Magnetization, mode of gradient Isothermal Remanent Magnetization, median of gradient Isothermal Remanent Magnetization, mean of gradient Composite Core Exp306 Joides Resolution Integrated Ocean Drilling Program / International Ocean Discovery Program IODP Sato, Masahiko Makio, Masato Hayashi, T Ohno, Masao Late Pliocene and early Pleistocene rock-magnetic record of IODP Site 306-U1314 ... |
topic_facet |
DEPTH, sediment/rock AGE High-coerecivity component Low-coerecivity component Residual Isothermal Remanent Magnetization, intensity Isothermal Remanent Magnetization, mode of gradient Isothermal Remanent Magnetization, median of gradient Isothermal Remanent Magnetization, mean of gradient Composite Core Exp306 Joides Resolution Integrated Ocean Drilling Program / International Ocean Discovery Program IODP |
description |
Knowledge of the evolution of North Atlantic Deep Water (NADW) is key to understanding the past evolution of the climatic system. We developed a new rock-magnetic method to determine the constituent magnetic minerals of sediments and report on the evolution of NADW during 2.2-2.9 Ma. We measured isothermal remanence acquisition curves of North Atlantic deep-sea sediments drilled at the Gardar Drift and decomposed the first derivatives of these curves into high-coercivity and low-coercivity components. Residuals of the decomposition were sufficiently small throughout the study interval, confirming that the Gardar Drift sediments represent a mixing of the two end-members. Fractional changes of the high-coercivity component represent variation of the Iceland-Scotland Overflow Water, a branch of NADW formed at the Nordic Seas. The high-coercivity component increased significantly during an interglacial period just after ~2.68 Ma, which suggests that NADW formation in the Nordic Seas abruptly intensified at this ... : Supplement to: Sato, Masahiko; Makio, Masato; Hayashi, T; Ohno, Masao (2015): Abrupt intensification of North Atlantic Deep Water formation at the Nordic Seas during the late Pliocene climate transition. Geophysical Research Letters, 42(12), 4949-4955 ... |
format |
Dataset |
author |
Sato, Masahiko Makio, Masato Hayashi, T Ohno, Masao |
author_facet |
Sato, Masahiko Makio, Masato Hayashi, T Ohno, Masao |
author_sort |
Sato, Masahiko |
title |
Late Pliocene and early Pleistocene rock-magnetic record of IODP Site 306-U1314 ... |
title_short |
Late Pliocene and early Pleistocene rock-magnetic record of IODP Site 306-U1314 ... |
title_full |
Late Pliocene and early Pleistocene rock-magnetic record of IODP Site 306-U1314 ... |
title_fullStr |
Late Pliocene and early Pleistocene rock-magnetic record of IODP Site 306-U1314 ... |
title_full_unstemmed |
Late Pliocene and early Pleistocene rock-magnetic record of IODP Site 306-U1314 ... |
title_sort |
late pliocene and early pleistocene rock-magnetic record of iodp site 306-u1314 ... |
publisher |
PANGAEA |
publishDate |
2015 |
url |
https://dx.doi.org/10.1594/pangaea.848329 https://doi.pangaea.de/10.1594/PANGAEA.848329 |
long_lat |
ENVELOPE(-60.734,-60.734,-63.007,-63.007) |
geographic |
New Rock |
geographic_facet |
New Rock |
genre |
Iceland NADW Nordic Seas North Atlantic Deep Water North Atlantic New Rock |
genre_facet |
Iceland NADW Nordic Seas North Atlantic Deep Water North Atlantic New Rock |
op_relation |
https://dx.doi.org/10.1002/2015gl063307 |
op_rights |
Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 |
op_doi |
https://doi.org/10.1594/pangaea.84832910.1002/2015gl063307 |
_version_ |
1809916942077657088 |