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Late Cretaceous–Early Paleogene tectonic events at Farafra-Abu Minqar Stretch, Western Desert, Egypt: results from calcareous plankton

  • Mahmoud Faris
  • Nageh A. Obaidalla
  • Amr A. Metwally
  • Abdelhamid M. Salman
  • Amr S. Zaky
S. I. Geology of Africa
  • 241 Downloads
Part of the following topical collections:
  1. New Advances and Research Results on the Geology of Africa

Abstract

This work depends on integrated high-resolution calcareous plankton nannofossil and foraminiferal biostratigraphic analyses for three Upper Cretaceous-Lower Paleogene successions at Farafra-Abu Minqar area, Western Desert, Egypt. These sections are distributed in a north-south geologic profile as follows: El Aqabat, North Gunna, and Abu Minqar. Lithostratigraphically, four formations are recorded in the study area, namely, Khoman (at base), Dakhla, Tarawan, and Esna (at top). In the north at El Aqabat section, Khoman Formation (carbonate facies) is only represented which changes partially toward the south to Dakhla Formation (siliciclastic facies). In the extreme south at Abu Minqar section, it changes completely into siliciclastic facies of Dakhla Formation. Biostratigraphically, seven calcareous nannofossil and eleven planktonic foraminiferal zones represent the Late Cretaceous-Early Paleogene are identified. Based on the occurrence or missing of these zones accompanied with the field criteria resulted in detecting four tectonic events. These tectonic events took place at the Cretaceous/Paleogene (K/Pg), the Danian/Selandian (D/S), the Selandian/Thanetian (S/T), and the Paleocene/Eocene (P/E) boundaries. These tectonic events are related to the impact of the Syrian Arc System. Four sequence boundaries (SB1, SB2, SB3, and SB4) are defined in the Late Cretaceous-Early Paleogene sequence in the Farafra-Abu Minqar area.

Keywords

Planktonic foraminifera Calcareous nannofossils Tectonic events Late Cretaceous Early Paleogene Sequence boundary Syrian Arc System Egypt 

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Copyright information

© Saudi Society for Geosciences 2018
corrected publication August/2018

Authors and Affiliations

  • Mahmoud Faris
    • 1
  • Nageh A. Obaidalla
    • 2
  • Amr A. Metwally
    • 2
  • Abdelhamid M. Salman
    • 2
  • Amr S. Zaky
    • 3
  1. 1.Geology Department, Faculty of ScienceTanta UniversityTantaEgypt
  2. 2.Geology Department, Faculty of ScienceAssiut UniversityAssiutEgypt
  3. 3.Geology Department, Faculty of ScienceMenoufia UniversityShibin Al KawmEgypt

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