Wilkes Land Late Pleistocene diatom age model: From bio-events to quantitative biostratigraphy
International audience A new method merges conventional and quantitative biostratigraphic approaches, supported by magnetic polarity data, to develop a chronological framework for sediment core MD03-2595 retrieved on the continental rise off Wilkes Land, East Antarctica before proceeding to paleocea...
Published in: | Revue de Micropaléontologie |
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Format: | Article in Journal/Newspaper |
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Online Access: | https://hal.science/hal-02105533 https://doi.org/10.1016/j.revmic.2018.05.001 |
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ftecolephe:oai:HAL:hal-02105533v1 2024-05-19T07:30:03+00:00 Wilkes Land Late Pleistocene diatom age model: From bio-events to quantitative biostratigraphy Tolotti, R. Bárcena, M. A. Macrì, Patrizia Caburlotto, A. Bonci, M. C. de Santis, Laura Donda, F. Corradi, Nicola Crosta, X. Dipartimento Scienze della Terra Università degli studi di Genova = University of Genoa (UniGe) Universidad de Salamanca Istituto Nazionale di Geofisica e Vulcanologia - Sezione di Roma (INGV) Istituto Nazionale di Geofisica e Vulcanologia Environnements et Paléoenvironnements OCéaniques (EPOC) Observatoire aquitain des sciences de l'univers (OASU) Université Sciences et Technologies - Bordeaux 1 (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1 (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-École Pratique des Hautes Études (EPHE) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Centre National de la Recherche Scientifique (CNRS) 2018 https://hal.science/hal-02105533 https://doi.org/10.1016/j.revmic.2018.05.001 en eng HAL CCSD Elsevier Masson info:eu-repo/semantics/altIdentifier/doi/10.1016/j.revmic.2018.05.001 hal-02105533 https://hal.science/hal-02105533 doi:10.1016/j.revmic.2018.05.001 ISSN: 0035-1598 Revue de Micropaléontologie https://hal.science/hal-02105533 Revue de Micropaléontologie, 2018, 61 (2), pp.81-96. ⟨10.1016/j.revmic.2018.05.001⟩ Matuyama-Brunhes Transition Mid Pleistocene Transition Late Pleistocene Quantitative Biostratigraphy Diatom Biomarkers Paleomagnetic dataset [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology info:eu-repo/semantics/article Journal articles 2018 ftecolephe https://doi.org/10.1016/j.revmic.2018.05.001 2024-04-25T01:48:18Z International audience A new method merges conventional and quantitative biostratigraphic approaches, supported by magnetic polarity data, to develop a chronological framework for sediment core MD03-2595 retrieved on the continental rise off Wilkes Land, East Antarctica before proceeding to paleoceanographic and paleoclimatic analysis. This combined method helped to identify climatic cycles, highlight stratigraphic discontinuities and reworking, and assess regional sedimentological and diatom biostratigraphic evolution. Core MD03-2595 spans the last 0.8 Ma, from the Mid Pleistocene Transition (MPT) to the Early Holocene. A hiatus including Marine Isotope Stages (MIS) 19, 18 and 17 was identified, and a decreasing trend in sediment accumulation rates from MIS 16 to the Holocene was observed. This quantitative diatom biostratigraphic dataset, placed in its own sedimentological and paleomagnetic context, provides new information regarding the paleobiogeographic distribution and ecological responses of biostratigraphically significant diatom species, such as Thalassiosira elliptipora and T. fasciculata, for the Matuyama-Brunhes (M-B) transition, and Actinocyclus ingens, Hemidiscus karstenii and Rouxia spp. for the middle and late Pleistocene diatom biozonation. Article in Journal/Newspaper Antarc* Antarctica East Antarctica Wilkes Land EPHE (Ecole pratique des hautes études, Paris): HAL Revue de Micropaléontologie 61 2 81 96 |
institution |
Open Polar |
collection |
EPHE (Ecole pratique des hautes études, Paris): HAL |
op_collection_id |
ftecolephe |
language |
English |
topic |
Matuyama-Brunhes Transition Mid Pleistocene Transition Late Pleistocene Quantitative Biostratigraphy Diatom Biomarkers Paleomagnetic dataset [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology |
spellingShingle |
Matuyama-Brunhes Transition Mid Pleistocene Transition Late Pleistocene Quantitative Biostratigraphy Diatom Biomarkers Paleomagnetic dataset [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology Tolotti, R. Bárcena, M. A. Macrì, Patrizia Caburlotto, A. Bonci, M. C. de Santis, Laura Donda, F. Corradi, Nicola Crosta, X. Wilkes Land Late Pleistocene diatom age model: From bio-events to quantitative biostratigraphy |
topic_facet |
Matuyama-Brunhes Transition Mid Pleistocene Transition Late Pleistocene Quantitative Biostratigraphy Diatom Biomarkers Paleomagnetic dataset [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology |
description |
International audience A new method merges conventional and quantitative biostratigraphic approaches, supported by magnetic polarity data, to develop a chronological framework for sediment core MD03-2595 retrieved on the continental rise off Wilkes Land, East Antarctica before proceeding to paleoceanographic and paleoclimatic analysis. This combined method helped to identify climatic cycles, highlight stratigraphic discontinuities and reworking, and assess regional sedimentological and diatom biostratigraphic evolution. Core MD03-2595 spans the last 0.8 Ma, from the Mid Pleistocene Transition (MPT) to the Early Holocene. A hiatus including Marine Isotope Stages (MIS) 19, 18 and 17 was identified, and a decreasing trend in sediment accumulation rates from MIS 16 to the Holocene was observed. This quantitative diatom biostratigraphic dataset, placed in its own sedimentological and paleomagnetic context, provides new information regarding the paleobiogeographic distribution and ecological responses of biostratigraphically significant diatom species, such as Thalassiosira elliptipora and T. fasciculata, for the Matuyama-Brunhes (M-B) transition, and Actinocyclus ingens, Hemidiscus karstenii and Rouxia spp. for the middle and late Pleistocene diatom biozonation. |
author2 |
Dipartimento Scienze della Terra Università degli studi di Genova = University of Genoa (UniGe) Universidad de Salamanca Istituto Nazionale di Geofisica e Vulcanologia - Sezione di Roma (INGV) Istituto Nazionale di Geofisica e Vulcanologia Environnements et Paléoenvironnements OCéaniques (EPOC) Observatoire aquitain des sciences de l'univers (OASU) Université Sciences et Technologies - Bordeaux 1 (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1 (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-École Pratique des Hautes Études (EPHE) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Tolotti, R. Bárcena, M. A. Macrì, Patrizia Caburlotto, A. Bonci, M. C. de Santis, Laura Donda, F. Corradi, Nicola Crosta, X. |
author_facet |
Tolotti, R. Bárcena, M. A. Macrì, Patrizia Caburlotto, A. Bonci, M. C. de Santis, Laura Donda, F. Corradi, Nicola Crosta, X. |
author_sort |
Tolotti, R. |
title |
Wilkes Land Late Pleistocene diatom age model: From bio-events to quantitative biostratigraphy |
title_short |
Wilkes Land Late Pleistocene diatom age model: From bio-events to quantitative biostratigraphy |
title_full |
Wilkes Land Late Pleistocene diatom age model: From bio-events to quantitative biostratigraphy |
title_fullStr |
Wilkes Land Late Pleistocene diatom age model: From bio-events to quantitative biostratigraphy |
title_full_unstemmed |
Wilkes Land Late Pleistocene diatom age model: From bio-events to quantitative biostratigraphy |
title_sort |
wilkes land late pleistocene diatom age model: from bio-events to quantitative biostratigraphy |
publisher |
HAL CCSD |
publishDate |
2018 |
url |
https://hal.science/hal-02105533 https://doi.org/10.1016/j.revmic.2018.05.001 |
genre |
Antarc* Antarctica East Antarctica Wilkes Land |
genre_facet |
Antarc* Antarctica East Antarctica Wilkes Land |
op_source |
ISSN: 0035-1598 Revue de Micropaléontologie https://hal.science/hal-02105533 Revue de Micropaléontologie, 2018, 61 (2), pp.81-96. ⟨10.1016/j.revmic.2018.05.001⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.revmic.2018.05.001 hal-02105533 https://hal.science/hal-02105533 doi:10.1016/j.revmic.2018.05.001 |
op_doi |
https://doi.org/10.1016/j.revmic.2018.05.001 |
container_title |
Revue de Micropaléontologie |
container_volume |
61 |
container_issue |
2 |
container_start_page |
81 |
op_container_end_page |
96 |
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1799483370422403072 |