Akademik Veri Yönetim Sistemi
21th PALEONTOLOGY-STRATIGRAPHY WORKSHOP PANDEMIA SPECIAL, Kahramanmaraş, Türkiye, 15 - 20 Kasım 2020, cilt.1, sa.1, ss.27-28
In this research, petrographic, micropaleontological and strontium isotopic examination was carried out in the Eocene carbonate units that outcrop on the ophiolitic rocks in the Adıyaman-Malatya regions of south east Turkey. The sedimentary units that form the main subject of the research consist of marl, clayey limestone, and limestone lithologies of Eocene age; Cenozoic sediments are widely spread across Southeastern and Eastern Anatolia. The units cover Mesozoic ophiolitic bodies (e.g. İspendere-Malatya, Meydan-Adıyaman) and this research examined them in detail, for the first time in Southeast Turkey. The 87Sr/86Sr ratios calculated from four samples of the carbonates range between 0.707663 and 0.707784 and between 0.707702 and 0.707729, respectively. The Eocene sequences have been calibrated to range from 45.1 to 51.9 Ma in age, via the strontium isotope ratio. In this carbonate sequence, which includes abundant Nummulites, Discocyclina, Chapmanina, Turborotalia frontosa, and Turborotalia possagnoensis, the zones are defined together with planktonic foraminifera in Adıyaman-Malatya, SE Turkey. Planktonic foraminifera species such as Turborotalia frontosa, Subbotina senni, S. eocaena, Acarinina bullbrooki, Guembelitrioides nuttalli, Globigerinatheka subconglobata, and G. curryi were found in each of these zones, in both the Adiyaman and Malatya regions. Observing the echinid thorns in the unit, where the environment was shallow marine, reflects a limestone lithology that developed on the open sea side of the reef.