Correlation of the Thanetian-Ilerdian turnover of larger foraminifera and the Paleocene-Eocene thermal maximum: confirming evidence from the Campo area (Pyrenees, Spain)
It has long been known that a major larger foraminifera turnover (LFT) occurred at the boundary between the Thanetian and Ilerdian stages, but its possible correlation with the Paleocene-Eocene thermal maximum (PETM) was unsuspected until the work of Baceta (1996), and has been controversial ever si...
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Universitat de Barcelona (UB), Geociències Barcelona (Geo3BCN), Institut de Diagnosi Ambiental i Estudis de l'Aigua (IDAEA), Universitat Autònoma de Barcelona (UAB)
2009-03-01
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Series: | Geologica Acta |
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Online Access: | https://revistes.ub.edu/index.php/GEOACTA/article/view/2052 |
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author | V. PUJALTE B. SCHMITZ J.I. BACETA CABALLERO X. ORUE-ECHEBARRÍA G. BERNAOLA BILBAO J. DINARÈS-TURELL A. PAYROS AGIRRE E. APELLANIZ INGUNZA F. CABALLERO SANTAMARIA |
author_facet | V. PUJALTE B. SCHMITZ J.I. BACETA CABALLERO X. ORUE-ECHEBARRÍA G. BERNAOLA BILBAO J. DINARÈS-TURELL A. PAYROS AGIRRE E. APELLANIZ INGUNZA F. CABALLERO SANTAMARIA |
author_sort | V. PUJALTE |
collection | DOAJ |
description | It has long been known that a major larger foraminifera turnover (LFT) occurred at the boundary between the Thanetian and Ilerdian stages, but its possible correlation with the Paleocene-Eocene thermal maximum (PETM) was unsuspected until the work of Baceta (1996), and has been controversial ever since. After summarizing the history of this controversy, we present information from three new sections that conclusively resolve the issue, all of them placed less than 2 km to the east of the classical Campo section in the southern Pyrenees. In these three sections, an up to 7 meter-thick intercalation of continental deposits rich in pedogenic carbonate nodules is sandwiched between uppermost Thanetian and lowermost Ilerdian shallow marine carbonates. The d13C composition of 42 pedogenic nodules collected from two of these sections (San Martín and La Cinglera) ranges between –11.4 and -14.3‰ and averages –12.9‰, values that conclusively represent the PETM and for the first time are recorded in sections where the LFT is clearly represented. Further, a high-resolution lithological correlation between Campo and the three new sections across the P-E interval unquestionably demonstrates that the lowermost marine beds with autochthonous specimens of Alveolina vredenburgi (a tell-tale of the LFT) are laterally interfingered –and are therefore coeval- with the nodule-bearing PETM continental deposits. On the basis of the new evidence, the temporal coincidence of the PETM and the LFT can no longer be doubted. |
first_indexed | 2024-03-11T17:02:26Z |
format | Article |
id | doaj.art-93b83bd9bacf46a3a7cbe21b18f18d7a |
institution | Directory Open Access Journal |
issn | 1696-5728 |
language | English |
last_indexed | 2024-03-11T17:02:26Z |
publishDate | 2009-03-01 |
publisher | Universitat de Barcelona (UB), Geociències Barcelona (Geo3BCN), Institut de Diagnosi Ambiental i Estudis de l'Aigua (IDAEA), Universitat Autònoma de Barcelona (UAB) |
record_format | Article |
series | Geologica Acta |
spelling | doaj.art-93b83bd9bacf46a3a7cbe21b18f18d7a2023-10-20T07:14:08ZengUniversitat de Barcelona (UB), Geociències Barcelona (Geo3BCN), Institut de Diagnosi Ambiental i Estudis de l'Aigua (IDAEA), Universitat Autònoma de Barcelona (UAB)Geologica Acta1696-57282009-03-0171-2Correlation of the Thanetian-Ilerdian turnover of larger foraminifera and the Paleocene-Eocene thermal maximum: confirming evidence from the Campo area (Pyrenees, Spain)V. PUJALTE0B. SCHMITZ1J.I. BACETA CABALLERO2X. ORUE-ECHEBARRÍA3G. BERNAOLA BILBAO4J. DINARÈS-TURELL5A. PAYROS AGIRRE6E. APELLANIZ INGUNZA7F. CABALLERO SANTAMARIA8Department of Stratigraphy and Paleontology, Faculty of Science and Technology, University of the Basque Country. P.O. Box 644, E-48080 Bilbao, Spain.Department of Geology, University of LundSölvegatan 12, SE-22362 Lund, Sweden.Department of Stratigraphy and Paleontology, Faculty of Science and Technology, University of the Basque Country. P.O. Box 644, E-48080 Bilbao, Spain.Department of Stratigraphy and Paleontology, Faculty of Science and Technology, University of the Basque Country. P.O. Box 644, E-48080 Bilbao, Spain.Department of Stratigraphy and Paleontology, Faculty of Science and Technology, University of the Basque Country. P.O. Box 644, E-48080 Bilbao, Spain.stituto Nazionale di Geofisica e Vulcanologia. Via di Vigna Murata, 605, I-00143 Rome, Italy.Department of Stratigraphy and Paleontology, Faculty of Science and Technology, University of the Basque Country. P.O. Box 644, E-48080 Bilbao, Spain.Department of Stratigraphy and Paleontology, Faculty of Science and Technology, University of the Basque Country. P.O. Box 644, E-48080 Bilbao, Spain.Department of Stratigraphy and Paleontology, Faculty of Science and Technology, University of the Basque Country. P.O. Box 644, E-48080 Bilbao, Spain.It has long been known that a major larger foraminifera turnover (LFT) occurred at the boundary between the Thanetian and Ilerdian stages, but its possible correlation with the Paleocene-Eocene thermal maximum (PETM) was unsuspected until the work of Baceta (1996), and has been controversial ever since. After summarizing the history of this controversy, we present information from three new sections that conclusively resolve the issue, all of them placed less than 2 km to the east of the classical Campo section in the southern Pyrenees. In these three sections, an up to 7 meter-thick intercalation of continental deposits rich in pedogenic carbonate nodules is sandwiched between uppermost Thanetian and lowermost Ilerdian shallow marine carbonates. The d13C composition of 42 pedogenic nodules collected from two of these sections (San Martín and La Cinglera) ranges between –11.4 and -14.3‰ and averages –12.9‰, values that conclusively represent the PETM and for the first time are recorded in sections where the LFT is clearly represented. Further, a high-resolution lithological correlation between Campo and the three new sections across the P-E interval unquestionably demonstrates that the lowermost marine beds with autochthonous specimens of Alveolina vredenburgi (a tell-tale of the LFT) are laterally interfingered –and are therefore coeval- with the nodule-bearing PETM continental deposits. On the basis of the new evidence, the temporal coincidence of the PETM and the LFT can no longer be doubted.https://revistes.ub.edu/index.php/GEOACTA/article/view/2052PETMPaleocene-Eocene boundaryLarger foraminiferaIsotopesCampo section |
spellingShingle | V. PUJALTE B. SCHMITZ J.I. BACETA CABALLERO X. ORUE-ECHEBARRÍA G. BERNAOLA BILBAO J. DINARÈS-TURELL A. PAYROS AGIRRE E. APELLANIZ INGUNZA F. CABALLERO SANTAMARIA Correlation of the Thanetian-Ilerdian turnover of larger foraminifera and the Paleocene-Eocene thermal maximum: confirming evidence from the Campo area (Pyrenees, Spain) Geologica Acta PETM Paleocene-Eocene boundary Larger foraminifera Isotopes Campo section |
title | Correlation of the Thanetian-Ilerdian turnover of larger foraminifera and the Paleocene-Eocene thermal maximum: confirming evidence from the Campo area (Pyrenees, Spain) |
title_full | Correlation of the Thanetian-Ilerdian turnover of larger foraminifera and the Paleocene-Eocene thermal maximum: confirming evidence from the Campo area (Pyrenees, Spain) |
title_fullStr | Correlation of the Thanetian-Ilerdian turnover of larger foraminifera and the Paleocene-Eocene thermal maximum: confirming evidence from the Campo area (Pyrenees, Spain) |
title_full_unstemmed | Correlation of the Thanetian-Ilerdian turnover of larger foraminifera and the Paleocene-Eocene thermal maximum: confirming evidence from the Campo area (Pyrenees, Spain) |
title_short | Correlation of the Thanetian-Ilerdian turnover of larger foraminifera and the Paleocene-Eocene thermal maximum: confirming evidence from the Campo area (Pyrenees, Spain) |
title_sort | correlation of the thanetian ilerdian turnover of larger foraminifera and the paleocene eocene thermal maximum confirming evidence from the campo area pyrenees spain |
topic | PETM Paleocene-Eocene boundary Larger foraminifera Isotopes Campo section |
url | https://revistes.ub.edu/index.php/GEOACTA/article/view/2052 |
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