Türkiye Jeoloji Bülteni

Tectono-Stratigraphical Investigation of an Area Between Aydıncık-Bozyazı (Mersin), Central Taurus, Turkey

Abstract: With the aim of exploring tectono-stratigraphy between Aydıncık-Bozyazı within the CentralTaurides of the Tauride belt by having some valuable field data; here, two tectonic units, which have tectoniccontact relations each other and representing that were formed in different basinal settings regarding to theirstratigraphy, rock type and structural properties, and unconformably overlying Mesozoic corbonatesequences were defined in this study. These tectonic units are called the Geyikdağ tectonic unit in the southand the Aladağ tectonic unit in the north. The carbonate sequences overlying these tectonic units have beenexamined as Mesozoic sediments in this study. These are unconformably overlain by Tertiary sediments.11 formations, which were deposited within the time period of Precambrian-late Permian, weredistinguished in the Geyikdağı tectonic units. These are called Sipahili (Precambrian), Hüdai (LowerCambrian), Çaltepe (Lower-Middle Cambrian), Eğripınar (Lower Silurian), Hırmanlı (Lower Silurian),Karayar (Upper Silurian-Lower Devonian), Sığırcık (Lower Devonian), Büyükeceli (Middle Devonian),Akdere (Upper Devonian), Korucuk (Lower Carboniferous) and Kırtıldağı (Upper Permian) formations frombottom to the top. 4 formations, which were deposited within the time period of middle Devonian-earlyTriassic, were distinguished in the Aladağ tectonic unit. These units from bottom to the top are called asGölboğazı (Middle-Upper Devonian), Dikenlidere (Carboniferous), Dumlugöze (Permian) and Mediova(Lower Triassic) formations. These two tectonic units are overlain by Mesozoic carbonates with angularunconformity. Mesozoic sediments are mainly represented by Murtçukuru (Upper Triassic) Cehennemdere(Liassic-Lower Senonian), Yavca (Upper Campanian Maastrichtian)formations and Hasancık (Campanian)limestone. Hasancık limestone, which is mainly made up of beige-cream, mid to thick bedded limestone,partly including brecciated carbonate, is firstly described and named in this study. All these units are coveredby late Oligocene-? early Miocene Derinçay and early-middle Miocene age Mut formations with angularunconformity.