Geochronology applications on Eocene-Miocene carbonate units with the strontium isotope (87Sr/86Sr) method (S/SE Anatolia)


Sonsun H., Nurlu N., Şafak Ü.

9th Geochemistry Symposium with International Participation, Aydın, Türkiye, 17 - 21 Ekim 2022, cilt.1, sa.1, ss.1

  • Yayın Türü: Bildiri / Özet Bildiri
  • Cilt numarası: 1
  • Basıldığı Şehir: Aydın
  • Basıldığı Ülke: Türkiye
  • Sayfa Sayıları: ss.1
  • Çukurova Üniversitesi Adresli: Evet

Özet

In this study, it is aimed to reveal geochronological applications by coinciding the 87Sr/86Sr analyzes carried out on carbonate units in Mersin, Karaman, Adıyaman and Malatya regions with the accepted global seawater 87Sr/86Sr values and supported by paleontological data. Three strontium analyzes performed on reefal limestones observed in Mersin region yielded values of 0.708849-0.708902 and 0.708868-0.708902, and these values were supported by ostracod data and gave ages between 9.7 and 11.4 Ma. In the Karaman region (Ayrancı basin), the data of 0.708399-0.708951 were obtained from the analyzes made on 3 samples of limestones-clay limestones. These data were confirmed by the planktonic foraminiferal and ostracod ages from the studied carbonate units (Divlek-Mazı Form.), giving ages of 7.1-20.9 Ma. Strontium analyzes were made from 4 samples on Nummulitic limestones observed on ophiolitic units in Malatya-Adıyaman regions. These analyzes were supported by planktonic foraminifer data and based on the analysis results obtained (0.707663- 0.707784), the ages of 45.1-51.9 Ma were given to the units examined.