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STRATI 2013 pp 1297-1301 | Cite as

Biostratigraphy of the Holocene and of the Main Cold Events of the Late Quaternary in the Gulf of Cadiz

  • Emmanuelle Ducassou
  • Rim Hassan
  • Vincent Hanquiez
  • Josette Duprat
  • Eliane Gonthier
  • Thierry Mulder
  • Samuel Toucanne
Conference paper
Part of the Springer Geology book series (SPRINGERGEOL)

Abstract

The Gulf of Cadiz, west of the Strait of Gibraltar, is the site of water exchange between the Atlantic Ocean and the Mediterranean where many palaeoceanographic studies have taken place over the last several decades. Based on 21 cores from three cruises, oxygen isotope curves, 139 radiocarbon dates, and microfaunal analyses, this work presents and discusses the main bioevents used as detailed biostratigraphic points in this area for the late Quaternary. Those bioevents, such as well-known cold events (Younger Dryas, Heinrich events) or bioevents occurring during the Holocene, are essentially based on planktonic foraminifer species and/or coiling ratio and the point occurrences of pteropod species. The large and extensive data set allows us to discuss ages and the spatial validity of such bioevents.

Keywords

Biostratigraphy Planktonic foraminifera Pteropods Gulf of Cadiz Late Quaternary 

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Copyright information

© Springer International Publishing Switzerland 2014

Authors and Affiliations

  • Emmanuelle Ducassou
    • 1
  • Rim Hassan
    • 1
  • Vincent Hanquiez
    • 1
  • Josette Duprat
    • 1
  • Eliane Gonthier
    • 1
  • Thierry Mulder
    • 1
  • Samuel Toucanne
    • 2
  1. 1.Avenue des FacultésTalence cedexFrance
  2. 2.Ifremer, Centre BretagneInstitut Carnot Ifremer-EDROMEPlouzané CedexFrance

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