Akademik Veri Yönetim Sistemi
7th International Science and Engineering Congress, Antalya, Türkiye, 25 - 28 Ekim 2022, cilt.1, sa.32, ss.97
The Adana Basin is located very close to the junction
of the African, Arabian, and Anatolian plates and plays a key role in
understanding the regional geological history. This study documents the first 87Sr/86Sr
data and its geologic implications for the whole units in the Neogene Adana
Basin. In this study, fifteen systematically collected samples from six
different formations of the Adana Basin subjected to 87Sr/86Sr
analysis. According to the 87Sr/86Sr analysis results,
ages of Serravallian – Tortonian for the Kaplankaya and relevant Karaisalı
formations, early-middle Miocene for the Cingöz Formation, early-middle Miocene
for the Güvenç Formation, Tortonian-Messinian for the Tırtar Formation, and
Messinian for the Kuzgun Formation were assigned. As some of the recorded 87Sr/86Sr
results has contradicted to the regional literature, the study also evaluates
possible geological factors causing the deviations in detail along with some
alternative approaches. Deviations observed in the Cingöz and Güvenç formations
are generally associated with diagenetic alteration and the units being rich in
detritus. The 87Sr/86Sr deviations obtained in the Kuzgun
and Kaplankaya formations are attributed to several causes: short-term
sea-level changes in the basin, continental run-off, terrestrial
feeding/riverine input and volcanic activity during the late
Tortonian-Messinian period. New field observations and 87Sr/86Sr
results allowed to distinguish different reef carbonates which have similar
lithology (Karaisalı/Tırtar Formation), suggesting that extensive reefs built
up by multi short-term phases and the sea receded from the basin gradually
during the Late Miocene.