Payros, Aitor et al. (2007): Reassessment of the early-middle Eocene biomagnetochronology based on evidence from the Gorrondatxe section (Basque Country, western Pyrenees)
Leg/Site/Hole:
Related Expeditions:
ODP 207
Identifier:
ID:
2013-012189
Type:
georefid
ID:
10.1111/j.1502-3931.2007.00016.x
Type:
doi
Creator:
Name:
Payros, Aitor
Affiliation:
University of the Basque Country, Department of Stratigraphy and Palaeontology, Bilbao, Spain
Role:
author
Name:
Bernaola, Gilen
Affiliation:
Istituto Nazionale di Geofisica e Vulcanologia, Italy
Role:
author
Name:
Orue-Etxebarria, Xabier
Affiliation:
University of Huelva, Spain
Role:
author
Name:
Dinares-Turell, Jaume
Affiliation:
Role:
author
Name:
Tosquella, Josep
Affiliation:
Role:
author
Name:
Apellaniz, Estibaliz
Affiliation:
Role:
author
Identification:
Title:
Reassessment of the early-middle Eocene biomagnetochronology based on evidence from the Gorrondatxe section (Basque Country, western Pyrenees)
Year:
2007
Source:
Lethaia
Publisher:
Taylor & Francis on licence from the Lethaia Foundation, Oslo, Norway
Volume:
40
Issue:
2
Pages:
183-195
Abstract:
Thirteen lower-middle Eocene (Ypresian-Lutetian) successions, including the Gorrondatxe section in the western Pyrenees, show biomagnetostratigraphic correlation schemes that do not agree with the current standard framework. The main discrepancy concerns the position of the boundary between planktonic foraminiferal Zones P9 (=E7, approximately) and P10 (=E8, approximately), which was thought to occur within calcareous nannofossil Subzone CP12a and at the boundary between magnetic polarity Chrons C22n and C21r. However, in the differing correlation scheme the boundary between Zones P9 (=E7) and P10 (=E8) occurs close to the base of Subzone CP13a and to the boundary between Chrons C21n and C20r. An attempt at a new Ypresian-Lutetian boundary biomagnetochronology is made based on data from the Gorrondatxe section, which shows that the boundary between Zones P9 (=E7) and P10 (=E8) is 3.1 Myr younger than hitherto considered. Therefore, the duration of the early Eocene, most commonly defined according to this planktonic foraminiferal zonal boundary, has generally been underestimated over the last four decades.
Language:
English
Genre:
Serial
Rights:
URL:
Coverage: Geographic coordinates: North:43.2300 West:-54.4400 East:
2.4700 South:-28.3200
Keywords: Stratigraphy; algae; assemblages; Atlantic Ocean; Basque Provinces Spain; biostratigraphy; biozones; Cenozoic; Demerara Rise; Eocene; Equatorial Atlantic; Europe; Foraminifera; Gorrondatxe Beach; Iberian Peninsula; Invertebrata; Leg 207; Leg 208; lithostratigraphy; lower Eocene; Lutetian; magnetostratigraphy; microfossils; middle Eocene; nannofossils; North Atlantic; Northwest Atlantic; Ocean Drilling Program; ODP Site 1258; ODP Site 1263; Paleogene; planktonic taxa; Plantae; Protista; Pyrenees; Sopela Spain; South Atlantic; Southern Europe; Spain; Spanish Pyrenees; Tertiary; Walvis Ridge; West Atlantic; Ypresian;
.