Advertisement

STRATI 2013 pp 623-627 | Cite as

Integrated Stratigraphy and Facies Analysis of the Upper Albian–Turonian (Cretaceous) Debarsu Formation (Yazd Block, Central Iran)

  • Markus WilmsenEmail author
  • Marisa Storm
  • Franz Theodor Fürsich
  • Mahmoud Reza Majidifard
Conference paper
Part of the Springer Geology book series (SPRINGERGEOL)

Abstract

The upper Albian–Turonian Debarsu Formation in its type area around Haftoman, south of Khur (Central Iran), has been investigated using an integrated approach of detailed logging, biostratigraphic and sequence-stratigraphic dating, and facies analysis based on field observations and microfacies studies. The formation was deposited on a homoclinal carbonate ramp with a basinal area situated towards the north. Numerous shallowing-upward cycles from offshore marl to shallow-water limestones are capped by palaeokarst surfaces, providing evidence of significant relative sea-level changes. Based on the stratigraphic positions of the sequence-bounding unconformities, a predominantly eustatic control of the sedimentary cyclicity is inferred. The major unconformity at the base of the overlying Coniacian–Campanian Haftoman Formation, however, is of tectonic origin.

Keywords

Mid-Cretaceous Biostratigraphy Sequence stratigraphy Homoclinal ramp Geodynamics 

References

  1. Aistov, L., Melnikov, B., Krivyakin, B., Morozov, L., & Kiristaev, V. (1984). Geology of the Khur area (Central Iran). Explanatory text of the Khur quadrangle map 1:250.000. V/O Technoexport, Report,20, 1–130.Google Scholar
  2. Ogg, J. G., & Hinnov, L. A. (2012). Cretaceous. In F. M. Gradstein, J. G. Ogg, M. Schmitz, & G. M. Ogg (Eds.), The geologic time scale 2012 (Vol. 2, pp. 793–853). Amsterdam: Elsevier.CrossRefGoogle Scholar
  3. Philip, J., & Floquet, M. (2000). Late Cenomanian (94.7-93.5). In J. Dercourt, M. Gaetani, B. Vrielynck, E. Barrier, B. Biju-Duval, M. F. Brunet, J. P. Cadet, S. Crasquin, & M. Sandulescu (Eds.), Atlas Peri-Tethys palaeogeographical maps (pp. 129–136). Paris: CCGM/CGMW.Google Scholar
  4. Wilmsen, M., Fürsich, F. T., & Majidifard, J. (2011). Cretaceous stratigraphy and facies development of the Yazd Block, Khur area, Central Iran. Darius Newsletter,2, 9–10.Google Scholar
  5. Wilmsen, M., Fürsich, F. T., & Majidifard, M. R. (2012). Porosphaera globularis (Phillips, 1829) (Porifera, Calcarea) from the Maastrichtian Farokhi Formation of Central Iran. Cretaceous Research33, 91–96.Google Scholar
  6. Wilmsen, M., Fürsich, F. T., & Majidifard, J. (2013). The Shah Kuh Formation, a latest Barremian–early Aptian carbonate platform of Central Iran (Khur area, Yazd Block). Cretaceous Research,39, 183–194.CrossRefGoogle Scholar
  7. Wilmsen, M., Storm, M., Fürsich, T., & Majidifard, M. R. (submitted). Upper Albian and Cenomanian (Cretaceous) ammonites from the Debarsu Formation (Yazd Block, Central Iran). Acta Geologica Polonica.Google Scholar
  8. Wilmsen, M., Storm, M., Fürsich, F. T., & Majidifard, M. R. (in preparation). Depositional setting of the Upper Albian–Turonian Debarsu Formation (Cretaceous of the Yazd Block, Central Iran). Facies.Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  • Markus Wilmsen
    • 1
    Email author
  • Marisa Storm
    • 1
  • Franz Theodor Fürsich
    • 2
  • Mahmoud Reza Majidifard
    • 3
  1. 1.Senckenberg Naturhistorische Sammlungen DresdenMuseum für Mineralogie und Geologie, Sektion PaläozoologieDresdenGermany
  2. 2.GeoZentrum Nordbayern, Fachgruppe PaläoUmweltFriedrich-Alexander-Universität Erlangen-NürnbergErlangenGermany
  3. 3.Geological Survey of IranTehranIran

Personalised recommendations