North Atlantic drift sediments constrain Eocene tidal dissipation and the evolution of the Earth‐Moon system
Cyclostratigraphy and astrochronology are now at the forefront of geologic timekeeping. While this technique heavily relies on the accuracy of astronomical calculations, solar system chaos limits how far back astronomical calculations can be performed with confidence. High-resolution paleoclimate re...
Published in: | Paleoceanography and Paleoclimatology |
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2023
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Online Access: | https://eprints.soton.ac.uk/477105/ https://eprints.soton.ac.uk/477105/1/Paleoceanog_and_Paleoclimatol_2023_De_Vleeschouwer_North_Atlantic_Drift_Sediments_Constrain_Eocene_Tidal_Dissipation_1_.pdf |
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ftsouthampton:oai:eprints.soton.ac.uk:477105 2024-05-12T08:07:14+00:00 North Atlantic drift sediments constrain Eocene tidal dissipation and the evolution of the Earth‐Moon system De Vleeschouwer, David Penman, Donald E. D'haenens, Simon Wu, Fei Westerhold, Thomas Vahlenkamp, Maximilian Cappelli, Carlotta Agnini, Claudia Kordesch, Wendy E.C. King, Daniel J. Van Der Ploeg, Robin Palike, Heiko Kirtland Turner, Sandra Wilson, Paul Norris, Richard D. Zachos, James C. Bohaty, Steven Hull, Pincelli M. 2023-02-09 text https://eprints.soton.ac.uk/477105/ https://eprints.soton.ac.uk/477105/1/Paleoceanog_and_Paleoclimatol_2023_De_Vleeschouwer_North_Atlantic_Drift_Sediments_Constrain_Eocene_Tidal_Dissipation_1_.pdf en English eng https://eprints.soton.ac.uk/477105/1/Paleoceanog_and_Paleoclimatol_2023_De_Vleeschouwer_North_Atlantic_Drift_Sediments_Constrain_Eocene_Tidal_Dissipation_1_.pdf De Vleeschouwer, David, Penman, Donald E., D'haenens, Simon, Wu, Fei, Westerhold, Thomas, Vahlenkamp, Maximilian, Cappelli, Carlotta, Agnini, Claudia, Kordesch, Wendy E.C., King, Daniel J., Van Der Ploeg, Robin, Palike, Heiko, Kirtland Turner, Sandra, Wilson, Paul, Norris, Richard D., Zachos, James C., Bohaty, Steven and Hull, Pincelli M. (2023) North Atlantic drift sediments constrain Eocene tidal dissipation and the evolution of the Earth‐Moon system. Paleoceanography and Paleoclimatology, 38 (2), [e2022PA004555]. (doi:10.1029/2022PA004555 <http://dx.doi.org/10.1029/2022PA004555>). cc_by_4 Article PeerReviewed 2023 ftsouthampton https://doi.org/10.1029/2022PA004555 2024-04-17T14:07:16Z Cyclostratigraphy and astrochronology are now at the forefront of geologic timekeeping. While this technique heavily relies on the accuracy of astronomical calculations, solar system chaos limits how far back astronomical calculations can be performed with confidence. High-resolution paleoclimate records with Milankovitch imprints now allow reversing the traditional cyclostratigraphic approach: Middle Eocene drift sediments from Newfoundland Ridge are well-suited for this purpose, due to high sedimentation rates and distinct lithological cycles. Per contra, the stratigraphies of Integrated Ocean Drilling Program Sites U1408–U1410 are highly complex with several hiatuses. Here, we built a two-site composite and constructed a conservative age-depth model to provide a reliable chronology for this rhythmic, highly resolved (<1 kyr) sedimentary archive. Astronomical components (g-terms and precession constant) are extracted from proxy time-series using two different techniques, producing consistent results. We find astronomical frequencies up to 4% lower than reported in astronomical solution La04. This solution, however, was smoothed over 20-Myr intervals, and our results therefore provide constraints on g-term variability on shorter, million-year timescales. We also report first evidence that the g 4 –g 3 “grand eccentricity cycle” may have had a 1.2-Myr period around 41 Ma, contrary to its 2.4-Myr periodicity today. Our median precession constant estimate (51.28 ± 0.56″/year) confirms earlier indicators of a relatively low rate of tidal dissipation in the Paleogene. Newfoundland Ridge drift sediments thus enable a reliable reconstruction of astronomical components at the limit of validity of current astronomical calculations, extracted from geologic data, providing a new target for the next generation of astronomical calculations. Article in Journal/Newspaper Newfoundland North Atlantic University of Southampton: e-Prints Soton Paleoceanography and Paleoclimatology 38 2 |
institution |
Open Polar |
collection |
University of Southampton: e-Prints Soton |
op_collection_id |
ftsouthampton |
language |
English |
description |
Cyclostratigraphy and astrochronology are now at the forefront of geologic timekeeping. While this technique heavily relies on the accuracy of astronomical calculations, solar system chaos limits how far back astronomical calculations can be performed with confidence. High-resolution paleoclimate records with Milankovitch imprints now allow reversing the traditional cyclostratigraphic approach: Middle Eocene drift sediments from Newfoundland Ridge are well-suited for this purpose, due to high sedimentation rates and distinct lithological cycles. Per contra, the stratigraphies of Integrated Ocean Drilling Program Sites U1408–U1410 are highly complex with several hiatuses. Here, we built a two-site composite and constructed a conservative age-depth model to provide a reliable chronology for this rhythmic, highly resolved (<1 kyr) sedimentary archive. Astronomical components (g-terms and precession constant) are extracted from proxy time-series using two different techniques, producing consistent results. We find astronomical frequencies up to 4% lower than reported in astronomical solution La04. This solution, however, was smoothed over 20-Myr intervals, and our results therefore provide constraints on g-term variability on shorter, million-year timescales. We also report first evidence that the g 4 –g 3 “grand eccentricity cycle” may have had a 1.2-Myr period around 41 Ma, contrary to its 2.4-Myr periodicity today. Our median precession constant estimate (51.28 ± 0.56″/year) confirms earlier indicators of a relatively low rate of tidal dissipation in the Paleogene. Newfoundland Ridge drift sediments thus enable a reliable reconstruction of astronomical components at the limit of validity of current astronomical calculations, extracted from geologic data, providing a new target for the next generation of astronomical calculations. |
format |
Article in Journal/Newspaper |
author |
De Vleeschouwer, David Penman, Donald E. D'haenens, Simon Wu, Fei Westerhold, Thomas Vahlenkamp, Maximilian Cappelli, Carlotta Agnini, Claudia Kordesch, Wendy E.C. King, Daniel J. Van Der Ploeg, Robin Palike, Heiko Kirtland Turner, Sandra Wilson, Paul Norris, Richard D. Zachos, James C. Bohaty, Steven Hull, Pincelli M. |
spellingShingle |
De Vleeschouwer, David Penman, Donald E. D'haenens, Simon Wu, Fei Westerhold, Thomas Vahlenkamp, Maximilian Cappelli, Carlotta Agnini, Claudia Kordesch, Wendy E.C. King, Daniel J. Van Der Ploeg, Robin Palike, Heiko Kirtland Turner, Sandra Wilson, Paul Norris, Richard D. Zachos, James C. Bohaty, Steven Hull, Pincelli M. North Atlantic drift sediments constrain Eocene tidal dissipation and the evolution of the Earth‐Moon system |
author_facet |
De Vleeschouwer, David Penman, Donald E. D'haenens, Simon Wu, Fei Westerhold, Thomas Vahlenkamp, Maximilian Cappelli, Carlotta Agnini, Claudia Kordesch, Wendy E.C. King, Daniel J. Van Der Ploeg, Robin Palike, Heiko Kirtland Turner, Sandra Wilson, Paul Norris, Richard D. Zachos, James C. Bohaty, Steven Hull, Pincelli M. |
author_sort |
De Vleeschouwer, David |
title |
North Atlantic drift sediments constrain Eocene tidal dissipation and the evolution of the Earth‐Moon system |
title_short |
North Atlantic drift sediments constrain Eocene tidal dissipation and the evolution of the Earth‐Moon system |
title_full |
North Atlantic drift sediments constrain Eocene tidal dissipation and the evolution of the Earth‐Moon system |
title_fullStr |
North Atlantic drift sediments constrain Eocene tidal dissipation and the evolution of the Earth‐Moon system |
title_full_unstemmed |
North Atlantic drift sediments constrain Eocene tidal dissipation and the evolution of the Earth‐Moon system |
title_sort |
north atlantic drift sediments constrain eocene tidal dissipation and the evolution of the earth‐moon system |
publishDate |
2023 |
url |
https://eprints.soton.ac.uk/477105/ https://eprints.soton.ac.uk/477105/1/Paleoceanog_and_Paleoclimatol_2023_De_Vleeschouwer_North_Atlantic_Drift_Sediments_Constrain_Eocene_Tidal_Dissipation_1_.pdf |
genre |
Newfoundland North Atlantic |
genre_facet |
Newfoundland North Atlantic |
op_relation |
https://eprints.soton.ac.uk/477105/1/Paleoceanog_and_Paleoclimatol_2023_De_Vleeschouwer_North_Atlantic_Drift_Sediments_Constrain_Eocene_Tidal_Dissipation_1_.pdf De Vleeschouwer, David, Penman, Donald E., D'haenens, Simon, Wu, Fei, Westerhold, Thomas, Vahlenkamp, Maximilian, Cappelli, Carlotta, Agnini, Claudia, Kordesch, Wendy E.C., King, Daniel J., Van Der Ploeg, Robin, Palike, Heiko, Kirtland Turner, Sandra, Wilson, Paul, Norris, Richard D., Zachos, James C., Bohaty, Steven and Hull, Pincelli M. (2023) North Atlantic drift sediments constrain Eocene tidal dissipation and the evolution of the Earth‐Moon system. Paleoceanography and Paleoclimatology, 38 (2), [e2022PA004555]. (doi:10.1029/2022PA004555 <http://dx.doi.org/10.1029/2022PA004555>). |
op_rights |
cc_by_4 |
op_doi |
https://doi.org/10.1029/2022PA004555 |
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Paleoceanography and Paleoclimatology |
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38 |
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2 |
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1798849819694858240 |