Article (Scientific journals)
The Palaeocene/Eocene boundary section at Zumaia (Basque-Cantabric Basin) revisited: New insights from high-resolution magnetic susceptibility and carbon isotope chemostratigraphy on organic matter (δ 13C org)
Storme, Jean-Yves; Devleeschouwer, X.; Schnyder, J. et al.
2012In Terra Nova, 24 (4), p. 310-317
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Keywords :
Paleocene-Eocene boundary; Paleogene; Basque Country; Guipuzcoa; Pyrenees; Spain; Zumaia
Abstract :
[en] The Zumaia section, the most complete and representative section of the early Palaeogene (hemi)-pelagic succession of the Pyrenees, is widely acknowledged as a key reference for the Palaeocene-Eocene boundary. New high-resolution δ 13C org of the Zumaia section (-23.8 to -28.8‰) confirms the position of the Carbon Isotope Excursion and enhances the distinction between the different steps of the CIE/PETM event. According to new magnetic susceptibility data and detailed cycle counting, the entire duration of the CIE/PETM in Zumaia is estimated in ∼168±16ka. Moreover, the investigation of palynofacies and low-field magnetic susceptibility reveal significant detrital influx during the interval. Several magnetic susceptibility phases and trends are recognised and are interpreted in terms of sea-level fluctuations before, during and after the PETM. Coupled with results from other sections, our data reveal the presence of an unconformity followed by an eustatic sea-level rise (TST) in the latest Palaeocene. © 2012 Blackwell Publishing Ltd.
Disciplines :
Earth sciences & physical geography
Author, co-author :
Storme, Jean-Yves ;  Université de Liège - ULiège
Devleeschouwer, X.;  RBINS, Geological Survey of Belgium, 13 rue Jenner, 1000 Brussels, Belgium
Schnyder, J.;  Univ. Paris 06, UMR 7193 ISTEP (UPMC-CNRS), 4, place Jussieu, 75252 Paris Cedex 05, France
Cambier, G.;  RBINS, Geological Survey of Belgium, 13 rue Jenner, 1000 Brussels, Belgium
Baceta, J. I.;  Universidad del País Vasco, Departamento de Estratigrafía y Palaeontología, Facultad de Ciencia y Tecnología, 48080 Bilbao, Spain
Pujalte, V.;  Universidad del País Vasco, Departamento de Estratigrafía y Palaeontología, Facultad de Ciencia y Tecnología, 48080 Bilbao, Spain
Di Matteo, A.;  Parma University, Earth Sciences, Parco Area delle Scienze, 157, 43100 Parma, Italy
Iacumin, P.;  Parma University, Earth Sciences, Parco Area delle Scienze, 157, 43100 Parma, Italy
Yans, J.;  FUNDP, University of Namur, Department of Geology, 61 rue de Bruxelles, 5000 Namur, Belgium
Language :
English
Title :
The Palaeocene/Eocene boundary section at Zumaia (Basque-Cantabric Basin) revisited: New insights from high-resolution magnetic susceptibility and carbon isotope chemostratigraphy on organic matter (δ 13C org)
Publication date :
2012
Journal title :
Terra Nova
ISSN :
0954-4879
eISSN :
1365-3121
Publisher :
Blackwell Publishing, Oxford, United Kingdom
Volume :
24
Issue :
4
Pages :
310-317
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
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