Persistent influence of obliquity on ice age terminations since the Middle Pleistocene transition. ...
Radiometric dating of glacial terminations over the past 640,000 years suggests pacing by Earth's climatic precession, with each glacial-interglacial period spanning four or five cycles of ~20,000 years. However, the lack of firm age estimates for older Pleistocene terminations confounds attemp...
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Online Access: | https://dx.doi.org/10.17863/cam.51081 https://www.repository.cam.ac.uk/handle/1810/304000 |
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ftdatacite:10.17863/cam.51081 2024-02-27T08:43:28+00:00 Persistent influence of obliquity on ice age terminations since the Middle Pleistocene transition. ... Bajo, Petra Drysdale, Russell N Woodhead, Jon D Hellstrom, John C Hodell, David Ferretti, Patrizia Voelker, Antje HL Zanchetta, Giovanni Rodrigues, Teresa Wolff, Eric Tyler, Jonathan Frisia, Silvia Spötl, Christoph Fallick, Anthony E 2020 https://dx.doi.org/10.17863/cam.51081 https://www.repository.cam.ac.uk/handle/1810/304000 en eng American Association for the Advancement of Science (AAAS) open.access All rights reserved http://purl.org/coar/access_right/c_abf2 37 Earth Sciences 3709 Physical Geography and Environmental Geoscience 3705 Geology article-journal ScholarlyArticle JournalArticle Article 2020 ftdatacite https://doi.org/10.17863/cam.51081 2024-02-01T15:00:18Z Radiometric dating of glacial terminations over the past 640,000 years suggests pacing by Earth's climatic precession, with each glacial-interglacial period spanning four or five cycles of ~20,000 years. However, the lack of firm age estimates for older Pleistocene terminations confounds attempts to test the persistence of precession forcing. We combine an Italian speleothem record anchored by a uranium-lead chronology with North Atlantic ocean data to show that the first two deglaciations of the so-called 100,000-year world are separated by two obliquity cycles, with each termination starting at the same high phase of obliquity, but at opposing phases of precession. An assessment of 11 radiometrically dated terminations spanning the past million years suggests that obliquity exerted a persistent influence on not only their initiation but also their duration. ... Article in Journal/Newspaper North Atlantic DataCite Metadata Store (German National Library of Science and Technology) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
37 Earth Sciences 3709 Physical Geography and Environmental Geoscience 3705 Geology |
spellingShingle |
37 Earth Sciences 3709 Physical Geography and Environmental Geoscience 3705 Geology Bajo, Petra Drysdale, Russell N Woodhead, Jon D Hellstrom, John C Hodell, David Ferretti, Patrizia Voelker, Antje HL Zanchetta, Giovanni Rodrigues, Teresa Wolff, Eric Tyler, Jonathan Frisia, Silvia Spötl, Christoph Fallick, Anthony E Persistent influence of obliquity on ice age terminations since the Middle Pleistocene transition. ... |
topic_facet |
37 Earth Sciences 3709 Physical Geography and Environmental Geoscience 3705 Geology |
description |
Radiometric dating of glacial terminations over the past 640,000 years suggests pacing by Earth's climatic precession, with each glacial-interglacial period spanning four or five cycles of ~20,000 years. However, the lack of firm age estimates for older Pleistocene terminations confounds attempts to test the persistence of precession forcing. We combine an Italian speleothem record anchored by a uranium-lead chronology with North Atlantic ocean data to show that the first two deglaciations of the so-called 100,000-year world are separated by two obliquity cycles, with each termination starting at the same high phase of obliquity, but at opposing phases of precession. An assessment of 11 radiometrically dated terminations spanning the past million years suggests that obliquity exerted a persistent influence on not only their initiation but also their duration. ... |
format |
Article in Journal/Newspaper |
author |
Bajo, Petra Drysdale, Russell N Woodhead, Jon D Hellstrom, John C Hodell, David Ferretti, Patrizia Voelker, Antje HL Zanchetta, Giovanni Rodrigues, Teresa Wolff, Eric Tyler, Jonathan Frisia, Silvia Spötl, Christoph Fallick, Anthony E |
author_facet |
Bajo, Petra Drysdale, Russell N Woodhead, Jon D Hellstrom, John C Hodell, David Ferretti, Patrizia Voelker, Antje HL Zanchetta, Giovanni Rodrigues, Teresa Wolff, Eric Tyler, Jonathan Frisia, Silvia Spötl, Christoph Fallick, Anthony E |
author_sort |
Bajo, Petra |
title |
Persistent influence of obliquity on ice age terminations since the Middle Pleistocene transition. ... |
title_short |
Persistent influence of obliquity on ice age terminations since the Middle Pleistocene transition. ... |
title_full |
Persistent influence of obliquity on ice age terminations since the Middle Pleistocene transition. ... |
title_fullStr |
Persistent influence of obliquity on ice age terminations since the Middle Pleistocene transition. ... |
title_full_unstemmed |
Persistent influence of obliquity on ice age terminations since the Middle Pleistocene transition. ... |
title_sort |
persistent influence of obliquity on ice age terminations since the middle pleistocene transition. ... |
publisher |
American Association for the Advancement of Science (AAAS) |
publishDate |
2020 |
url |
https://dx.doi.org/10.17863/cam.51081 https://www.repository.cam.ac.uk/handle/1810/304000 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_rights |
open.access All rights reserved http://purl.org/coar/access_right/c_abf2 |
op_doi |
https://doi.org/10.17863/cam.51081 |
_version_ |
1792051473255759872 |