Revised Chrono-biostratigraphy of Lower Miocene deposits of the Eastern Mediterranean (SW Turkey), based on calcareous nannofossils

Main Article Content

Gulin Yavuzlar
Enis Kemal Sagular

Abstract

Lower Miocene deposits of the Güneyce Formation formerly described as the Elmalı Formation of Lutetian-Burdigalian age are located near the villages of Gökçebağ (Burdur) and Yakaören (Isparta), (southwestern Turkey), Eastern Mediterranean, and overlie the pre-Neogene tectonostratigraphic units of the Isparta Angle. The purpose of this study is to discuss new biostratigraphic data calibrated to originally classified nannofossil records. Three Early Miocene nannofossil biozones,NN1 - Triquetrorhabdulus carinatus Zone, NN2 - Discoaster druggii Zone and NN3 – Sphenolithusbelemnos Zone, were defined in clastic sediments of the Güneyce Formation. In addition, one Lutetianbio zone, NP16 – Discoaster tanii nodifer Zone, was recognized in the remaining outcrops of the Isparta Formation unconformably underlying the Güneyce Formation. Nannofossil assemblages of shallow marine deposits in the Güneyce Formation contain high amounts of reworked (Palaeogene and Cretaceous) specimens. New biostratigraphic data and sedimentary features of the Güneyce Formation clastics indicate shallow marine deposition and the beginning of the transgression, spreading over an erosional surface on the ophiolitic melangeand Cretaceous to Eocene marine successions rising to the west of the region.

Article Details

Section
Original Scientific Papers
Author Biography

Gulin Yavuzlar, International Nannoplankton Society, Chamber of Geological Engineers of Turkey

Departament of Geology, Faculty of Engineering, Suleyman Demirel University

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