Oligocene stable isotope record and calcareous nannofossils of IODP Site 208-1264 ...
Pelagic sediments from the subtropical South Atlantic Ocean contain geographically extensive Oligocene ooze and chalk layers that consist almost entirely of the calcareous nannofossil Braarudosphaera. Poor recovery and the lack of precise dating of these horizons in previous studies has limited our...
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ftdatacite:10.1594/pangaea.878110 2024-06-09T07:49:33+00:00 Oligocene stable isotope record and calcareous nannofossils of IODP Site 208-1264 ... Liebrand, Diederik Raffi, Isabella Fraguas, Ángela Laxenaire, Rémi Bosmans, Joyce H C Hilgen, Frederik J Wilson, Paul A Batenburg, Sietske J Beddow, Helen M Bohaty, Steven M Bown, Paul R Crocker, Anya J Huck, Claire E Lourens, Lucas Joost Sabia, Luciana 2018 application/zip https://dx.doi.org/10.1594/pangaea.878110 https://doi.pangaea.de/10.1594/PANGAEA.878110 en eng PANGAEA https://dx.doi.org/10.1002/2017pa003222 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 Ocean Drilling Program ODP Collection article Supplementary Publication Series of Datasets 2018 ftdatacite https://doi.org/10.1594/pangaea.87811010.1002/2017pa003222 2024-05-13T13:41:18Z Pelagic sediments from the subtropical South Atlantic Ocean contain geographically extensive Oligocene ooze and chalk layers that consist almost entirely of the calcareous nannofossil Braarudosphaera. Poor recovery and the lack of precise dating of these horizons in previous studies has limited our understanding of the exact number of acmes, their timing and durations, and the causes of their recurrence. Here we present a high-resolution, astronomically tuned stratigraphy of Braarudosphaera oozes (29.5-27.9 Ma) from Ocean Drilling Program Site 1264 in the subtropical southeastern Atlantic Ocean. We identify seven acme events in the Braarudosphaera abundance record. The longest lasting acme event corresponds to a strong minimum in the ~2.4-My eccentricity cycle, and four acme events coincide with ~110-ky and 405-ky eccentricity maxima. We propose that eccentricity-modulated precession forcing of the freshwater budget of the South Atlantic Ocean resulted in the episodic formation of a shallow pycnocline and ... : Supplement to: Liebrand, Diederik; Raffi, Isabella; Fraguas, Ángela; Laxenaire, Rémi; Bosmans, Joyce H C; Hilgen, Frederik J; Wilson, Paul A; Batenburg, Sietske J; Beddow, Helen M; Bohaty, Steven M; Bown, Paul R; Crocker, Anya J; Huck, Claire E; Lourens, Lucas Joost; Sabia, Luciana (2018): Orbitally Forced Hyperstratification of the Oligocene South Atlantic Ocean. Paleoceanography and Paleoclimatology, 33(5), 511-529 ... Article in Journal/Newspaper South Atlantic Ocean 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 |
Ocean Drilling Program ODP |
spellingShingle |
Ocean Drilling Program ODP Liebrand, Diederik Raffi, Isabella Fraguas, Ángela Laxenaire, Rémi Bosmans, Joyce H C Hilgen, Frederik J Wilson, Paul A Batenburg, Sietske J Beddow, Helen M Bohaty, Steven M Bown, Paul R Crocker, Anya J Huck, Claire E Lourens, Lucas Joost Sabia, Luciana Oligocene stable isotope record and calcareous nannofossils of IODP Site 208-1264 ... |
topic_facet |
Ocean Drilling Program ODP |
description |
Pelagic sediments from the subtropical South Atlantic Ocean contain geographically extensive Oligocene ooze and chalk layers that consist almost entirely of the calcareous nannofossil Braarudosphaera. Poor recovery and the lack of precise dating of these horizons in previous studies has limited our understanding of the exact number of acmes, their timing and durations, and the causes of their recurrence. Here we present a high-resolution, astronomically tuned stratigraphy of Braarudosphaera oozes (29.5-27.9 Ma) from Ocean Drilling Program Site 1264 in the subtropical southeastern Atlantic Ocean. We identify seven acme events in the Braarudosphaera abundance record. The longest lasting acme event corresponds to a strong minimum in the ~2.4-My eccentricity cycle, and four acme events coincide with ~110-ky and 405-ky eccentricity maxima. We propose that eccentricity-modulated precession forcing of the freshwater budget of the South Atlantic Ocean resulted in the episodic formation of a shallow pycnocline and ... : Supplement to: Liebrand, Diederik; Raffi, Isabella; Fraguas, Ángela; Laxenaire, Rémi; Bosmans, Joyce H C; Hilgen, Frederik J; Wilson, Paul A; Batenburg, Sietske J; Beddow, Helen M; Bohaty, Steven M; Bown, Paul R; Crocker, Anya J; Huck, Claire E; Lourens, Lucas Joost; Sabia, Luciana (2018): Orbitally Forced Hyperstratification of the Oligocene South Atlantic Ocean. Paleoceanography and Paleoclimatology, 33(5), 511-529 ... |
format |
Article in Journal/Newspaper |
author |
Liebrand, Diederik Raffi, Isabella Fraguas, Ángela Laxenaire, Rémi Bosmans, Joyce H C Hilgen, Frederik J Wilson, Paul A Batenburg, Sietske J Beddow, Helen M Bohaty, Steven M Bown, Paul R Crocker, Anya J Huck, Claire E Lourens, Lucas Joost Sabia, Luciana |
author_facet |
Liebrand, Diederik Raffi, Isabella Fraguas, Ángela Laxenaire, Rémi Bosmans, Joyce H C Hilgen, Frederik J Wilson, Paul A Batenburg, Sietske J Beddow, Helen M Bohaty, Steven M Bown, Paul R Crocker, Anya J Huck, Claire E Lourens, Lucas Joost Sabia, Luciana |
author_sort |
Liebrand, Diederik |
title |
Oligocene stable isotope record and calcareous nannofossils of IODP Site 208-1264 ... |
title_short |
Oligocene stable isotope record and calcareous nannofossils of IODP Site 208-1264 ... |
title_full |
Oligocene stable isotope record and calcareous nannofossils of IODP Site 208-1264 ... |
title_fullStr |
Oligocene stable isotope record and calcareous nannofossils of IODP Site 208-1264 ... |
title_full_unstemmed |
Oligocene stable isotope record and calcareous nannofossils of IODP Site 208-1264 ... |
title_sort |
oligocene stable isotope record and calcareous nannofossils of iodp site 208-1264 ... |
publisher |
PANGAEA |
publishDate |
2018 |
url |
https://dx.doi.org/10.1594/pangaea.878110 https://doi.pangaea.de/10.1594/PANGAEA.878110 |
genre |
South Atlantic Ocean |
genre_facet |
South Atlantic Ocean |
op_relation |
https://dx.doi.org/10.1002/2017pa003222 |
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.87811010.1002/2017pa003222 |
_version_ |
1801382226203508736 |