Journal of the Geological Society of India

, Volume 93, Issue 6, pp 704–712 | Cite as

Microfacies and Depositional Environment of the Ilerdian Carbonates in the North-Western Tosya (SE Kastamonu) Region, Northern Turkey

  • Nazire Özgen-Erdem
  • Calibe Koç-TasginEmail author
Research Articles


Ilerdian (early Eocene) carbonates in the northwestern Tosya region, northern Turkey, are characterized by porcellaneous larger benthic foraminifera; Glomalveolina, Alveolina, Orbitolites, Opertorbitolites and Cyclopertorbitolites are common in the southeastern Kastamonu region, in facies deposited on a low-gradient carbonate ramp. The inner ramp comprises of Miliolid-soritid wackestone, Soritid wackestone, Alveolinid-soritid wackestone-packstone, Alveolinid wackestone, Alveolinid-Nummulitid wackestone-packstone, algal wackestone, and Coralline algal pack-grainstone microfacies. The middle ramp deposits are composed of Alveolinid-nummulitid wackestone-packstone and Nummulitid wackestone-packstone microfacies. Overall, the succession reflects a long term deepening trend.


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An early version of this manuscript was greatly benefited from valuable suggestions by Ibrahim Türkmen (University of Balikesir), Davide Bassi (University of Ferrara) and Mehmet Özkul (University of Pamukkale). Maurice Tucker (University of Bristol) kindly corrected the English and content of the manuscript. Authors thank them.


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Authors and Affiliations

  1. 1.Department of Geological EngineeringCumhuriyet UniversitySivasTurkey
  2. 2.Department of Geological EngineeringFirat UniversityElazigTurkey

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