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STRATI 2013 pp 441-445 | Cite as

A Revised Correlation of Lower Ordovician Sedimentary Rocks in the Central Iberian Zone (Portugal and Spain)

  • A. A. SáEmail author
  • J. C. Gutiérrez-Marco
  • C. A. Meireles
  • D. C. García-Bellido
  • I. Rábano
Conference paper
Part of the Springer Geology book series (SPRINGERGEOL)

Abstract

Widespread Lower Ordovician sandstones (Armorican Quartzite facies) represent the initial passive margin sedimentation that occurred over a huge area of southwestern Europe during the late Floian. Their deposition ended during the Dapingian to early Darriwilian. Precursors of the Armorican Quartzite were deposited behind the border of a rift system, leading to the formation of conglomerate fans associated with the fault planes of tilted blocks generated during rifting of the Cadomian basement. ?Tremadocian deposits, coeval with volcanic events, are also recorded across this extensional basin. There is a scarcity of sedimentological studies and other elements aiding both correlation and a more accurate reconstruction of the basin architecture.

Keywords

Lower Ordovician Central Iberian Zone Lithostratigraphic correlation Armorican Quartzite Toledanian unconformity 

Notes

Acknowledgments

We thank T. Vandenbroucke (Lille) and an anonymous referee for their suggestions. This work was supported by the Spanish Ministry of Economic Affairs and Competitivity, project number CGL2012-39471/BTE and is also a contribution to IGCP Project 591 of the IUGS-UNESCO.

References

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Copyright information

© Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  • A. A. Sá
    • 1
    • 2
    Email author
  • J. C. Gutiérrez-Marco
    • 3
  • C. A. Meireles
    • 4
  • D. C. García-Bellido
    • 5
  • I. Rábano
    • 6
  1. 1.Departamento de GeologiaUniversidade de Trás-os-Montes e Alto DouroVila RealPortugal
  2. 2.Centro de GeociênciasUniversidade de CoimbraCoimbraPortugal
  3. 3.Instituto de Geociencias (CSIC, UCM)MadridSpain
  4. 4.Laboratório Nacional de Energia e Geologia, I.PS. Mamede de InfestaPortugal
  5. 5.Sprigg Geobiology CentreUniversity of AdelaideAdelaideAustralia
  6. 6.Museo GeomineroMadridSpain

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