Abstract

This study aims to investigate the stratigraphy and regional correlation of terrestrial Neogene sediments and volcanics in the Cesme Peninsula. Neogene deposition is represented by two main sedimentary successions separated from each other by an angular unconformity. The lacustrine dominated Cesme group characterized the Lower-Middle Miocene deposition is formed by Şifne, Ovacik and Ciftlik formations. The felsic pyroclastics (Alacati pyroclastics), which are the early products of the Armagandagi volcanism, laterally associated with the Cesme group deposition, deposited on the Şifne formation and interrupted the lacustrine sedimentation. The lacustrine sedimentation continued uninterruptedly with Ovacik and Ciftlik formations after the deposition of pyroclastics, which terminated the sedimentation of the Şifne formation. The calc-alkaline Armagandagi volcanism is composed of felsic pyroclastics, andesitic volcaniclastics (Reisdere volcaniclastics) and lavas (Zeytineli lava) respectively from bottom to top. The Late Miocene-Early (?) Pliocene Kastepe group, which covers all these units with angular unconformity, is represented by a succession, which grades from alluvial fan (Karagoz formation) up to lacustrine deposits (Inlice formation).

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