International Journal of Earth Sciences

, Volume 91, Issue 2, pp 272–279

Chemostratigraphic correlation of Barremian and lower Aptian ammonite zones and magnetic reversals

  • Lukas Wissler
  • Helmut Weissert
  • Jean-Pierre Masse
  • Luc Bulot
Original Paper

DOI: 10.1007/s005310100210

Cite this article as:
Wissler, L., Weissert, H., Masse, J. et al. Int J Earth Sci (Geol Rundsch) (2002) 91: 272. doi:10.1007/s005310100210

Abstract.

Based on carbon-isotope stratigraphy we correlate the ammonite-dated Barremian reference section near Angles (SE France) with the magneto- and biostratigraphically dated succession at Cismon (northern Italy). The results confirm the previous correlation of the lower Barremian ammonite- and magnetostratigraphy by Channell et al. (1995) and show that the base of CM0 selected as the stage boundary between the Aptian and the Barremian coincides with the stage boundary defined by ammonite stratigraphy. The upper Barremian carbon-isotope record of the Cismon section displays two positive δ13C excursions, whereas the data from Angles show only one shift towards more enriched values. The absence of the second upper Barremian δ13C excursion at Angles indicates that up to 50% of the Barremian stage is missing in the selected reference section. The gap occurs most probably within the giraudi ammonite zone and is related to the 12d maximum flooding surface of Jacquin et al. (1998).

Stratigraphy Ammonites Carbon isotopes Early Cretaceous Barremian Aptian

Copyright information

© Springer-Verlag 2001

Authors and Affiliations

  • Lukas Wissler
    • 1
  • Helmut Weissert
    • 1
  • Jean-Pierre Masse
    • 2
  • Luc Bulot
    • 2
  1. 1.Geologisches Institut, ETH Zürich, 8092 Zurich, Switzerland
  2. 2.Centre de Sédimentologie-Paléontologie, Université de Provence, 13331 Marseille, France