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Lower to Middle Miocene Deposits of North-East Tunisia: Implied Facies Evolution and Tectonic-Sedimentary Control

  • Nadia GaaloulEmail author
  • Wissal Ghazzay
  • Saloua Razgallah
Conference paper
Part of the Advances in Science, Technology & Innovation book series (ASTI)

Abstract

This work was the result of a scientific collaboration between the faculty of sciences of Tunis (FST) Tunis –El Manar University (which provides the logistic support) and the Lundin Petroleum Tunisia (which provides wells and seismic data). It aims to study the response of the Miocene sedimentary systems, in the North-East of Tunisia, to the global events occurring during sedimentation. Miocene deposits organization is complex and evolved in time and space. It is characterized by pedogenetic alteration, great sedimentary supply with frequently, bad preservation and stratigraphic lacuna. In this context, a multidisciplinary approach integrating biostratigraphy, facies analysis, interpretation of depositional environments and seismic correlations has been adopted. It has allowed us to mark the distribution and the thickness of the facies (petroleum objects) and to understand the general evolution of sedimentary systems related to tectonic, eustatic and climatic events that they have been recorded. The compilation of the data shows that several modifications of the depositional environments, during the Burdigalian-Langhian period, have occurred in the studied area. Two transgressive events are recognized and major discontinuities have been highlighted. The sudden changes of thickness and the individualization of the Miocene microbasins are arguable in favor of a tectonic control.

Keywords

North-East Tunisia Lower to Middle Miocene Facies Eustatism Tectono-sedimentary model 

References

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Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  • Nadia Gaaloul
    • 1
    Email author
  • Wissal Ghazzay
    • 1
  • Saloua Razgallah
    • 1
  1. 1.Faculty of Sciences of Tunis, Department of GeologyUniversity of Tunis El ManarTunisTunisia

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