High-resolution Pleistocene diatom biostratigraphy of Site 983 and correlations with isotope stratigraphy
International audience High accumulation rates and the presence of well-preserved, abundant diatoms in Site 983 sediments from the Gardar Drift gave us the opportunity to refine the Pleistocene diatom biostratigraphic resolution of the high-latitude North Atlantic. Eight Pleistocene diatom datum eve...
Main Authors: | , , , |
---|---|
Other Authors: | , , , , , , |
Format: | Book Part |
Language: | English |
Published: |
HAL CCSD
1999
|
Subjects: | |
Online Access: | https://hal.science/hal-02958678 https://hal.science/hal-02958678/document https://hal.science/hal-02958678/file/KocODP99.pdf https://doi.org/10.2973/odp.proc.sr.162.035.1999 |
id |
ftuniversailles:oai:HAL:hal-02958678v1 |
---|---|
record_format |
openpolar |
spelling |
ftuniversailles:oai:HAL:hal-02958678v1 2024-04-28T08:29:41+00:00 High-resolution Pleistocene diatom biostratigraphy of Site 983 and correlations with isotope stratigraphy Koç, N. Hodell, D.A. Kleiven, H. Labeyrie, L. University of Bergen (UiB) University of Florida Gainesville (UF) Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA) Paléocéanographie (PALEOCEAN) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) 1999-06 https://hal.science/hal-02958678 https://hal.science/hal-02958678/document https://hal.science/hal-02958678/file/KocODP99.pdf https://doi.org/10.2973/odp.proc.sr.162.035.1999 en eng HAL CCSD Ocean Drilling Program info:eu-repo/semantics/altIdentifier/doi/10.2973/odp.proc.sr.162.035.1999 hal-02958678 https://hal.science/hal-02958678 https://hal.science/hal-02958678/document https://hal.science/hal-02958678/file/KocODP99.pdf doi:10.2973/odp.proc.sr.162.035.1999 info:eu-repo/semantics/OpenAccess Proceedings of the Ocean Drilling Program, 162 Scientific Results https://hal.science/hal-02958678 Proceedings of the Ocean Drilling Program, 162 Scientific Results, 162, Ocean Drilling Program, 1999, Proceedings of the Ocean Drilling Program, ⟨10.2973/odp.proc.sr.162.035.1999⟩ [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment info:eu-repo/semantics/bookPart Book sections 1999 ftuniversailles https://doi.org/10.2973/odp.proc.sr.162.035.1999 2024-04-04T17:35:12Z International audience High accumulation rates and the presence of well-preserved, abundant diatoms in Site 983 sediments from the Gardar Drift gave us the opportunity to refine the Pleistocene diatom biostratigraphic resolution of the high-latitude North Atlantic. Eight Pleistocene diatom datum events are identified and, for the first time, tied directly to the oxygen isotope record and paleomagnetic stratigraphy of Site 983. These datum events are (1) the last occurrence (LO) of Proboscia curvirostris at 0.3 Ma, (2) the LO of Thalassiosira jouseae at 0.3 Ma, (3) the LO of Nitzschia reinholdii at 0.6 Ma, (4) the LO of Nitzschia fossilis at 0.68 Ma, (5) the LO of Nitzschia seminae at 0.84 Ma, (6) the first occurrence (FO) of N. seminae at 1.25 Ma, (7) the FO of Proboscia curvirostris at 1.53 Ma, and (8) the FO of Pseudoeunotia doliolus at 1.89 Ma. Most of these datums are found to be synchronous between the middle and high latitudes of the North Atlantic and the North Pacific. On the basis of these datums, four highlatitude North Atlantic diatom zones are proposed for the Pleistocene. The record of diatom abundance and preservation at Site 983 gives evidence for the influence of fluctuating Pleistocene climatic conditions on diatom productivity in the high-latitude North Atlantic. Book Part North Atlantic Université de Versailles Saint-Quentin-en-Yvelines: HAL-UVSQ |
institution |
Open Polar |
collection |
Université de Versailles Saint-Quentin-en-Yvelines: HAL-UVSQ |
op_collection_id |
ftuniversailles |
language |
English |
topic |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment |
spellingShingle |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment Koç, N. Hodell, D.A. Kleiven, H. Labeyrie, L. High-resolution Pleistocene diatom biostratigraphy of Site 983 and correlations with isotope stratigraphy |
topic_facet |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment |
description |
International audience High accumulation rates and the presence of well-preserved, abundant diatoms in Site 983 sediments from the Gardar Drift gave us the opportunity to refine the Pleistocene diatom biostratigraphic resolution of the high-latitude North Atlantic. Eight Pleistocene diatom datum events are identified and, for the first time, tied directly to the oxygen isotope record and paleomagnetic stratigraphy of Site 983. These datum events are (1) the last occurrence (LO) of Proboscia curvirostris at 0.3 Ma, (2) the LO of Thalassiosira jouseae at 0.3 Ma, (3) the LO of Nitzschia reinholdii at 0.6 Ma, (4) the LO of Nitzschia fossilis at 0.68 Ma, (5) the LO of Nitzschia seminae at 0.84 Ma, (6) the first occurrence (FO) of N. seminae at 1.25 Ma, (7) the FO of Proboscia curvirostris at 1.53 Ma, and (8) the FO of Pseudoeunotia doliolus at 1.89 Ma. Most of these datums are found to be synchronous between the middle and high latitudes of the North Atlantic and the North Pacific. On the basis of these datums, four highlatitude North Atlantic diatom zones are proposed for the Pleistocene. The record of diatom abundance and preservation at Site 983 gives evidence for the influence of fluctuating Pleistocene climatic conditions on diatom productivity in the high-latitude North Atlantic. |
author2 |
University of Bergen (UiB) University of Florida Gainesville (UF) Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA) Paléocéanographie (PALEOCEAN) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) |
format |
Book Part |
author |
Koç, N. Hodell, D.A. Kleiven, H. Labeyrie, L. |
author_facet |
Koç, N. Hodell, D.A. Kleiven, H. Labeyrie, L. |
author_sort |
Koç, N. |
title |
High-resolution Pleistocene diatom biostratigraphy of Site 983 and correlations with isotope stratigraphy |
title_short |
High-resolution Pleistocene diatom biostratigraphy of Site 983 and correlations with isotope stratigraphy |
title_full |
High-resolution Pleistocene diatom biostratigraphy of Site 983 and correlations with isotope stratigraphy |
title_fullStr |
High-resolution Pleistocene diatom biostratigraphy of Site 983 and correlations with isotope stratigraphy |
title_full_unstemmed |
High-resolution Pleistocene diatom biostratigraphy of Site 983 and correlations with isotope stratigraphy |
title_sort |
high-resolution pleistocene diatom biostratigraphy of site 983 and correlations with isotope stratigraphy |
publisher |
HAL CCSD |
publishDate |
1999 |
url |
https://hal.science/hal-02958678 https://hal.science/hal-02958678/document https://hal.science/hal-02958678/file/KocODP99.pdf https://doi.org/10.2973/odp.proc.sr.162.035.1999 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Proceedings of the Ocean Drilling Program, 162 Scientific Results https://hal.science/hal-02958678 Proceedings of the Ocean Drilling Program, 162 Scientific Results, 162, Ocean Drilling Program, 1999, Proceedings of the Ocean Drilling Program, ⟨10.2973/odp.proc.sr.162.035.1999⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.2973/odp.proc.sr.162.035.1999 hal-02958678 https://hal.science/hal-02958678 https://hal.science/hal-02958678/document https://hal.science/hal-02958678/file/KocODP99.pdf doi:10.2973/odp.proc.sr.162.035.1999 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.2973/odp.proc.sr.162.035.1999 |
_version_ |
1797587808485900288 |