THE MOLLUSCAN FAUNA AND STRATIGRAPHY OF ANTALYA MIOCENE BASIN (WEST-CENTRAL TAURIDS, SW TURKEY)

Authors : Yeşim İSLAMOGLU

Pages : 27-58

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Publication Date : 2002-04-01

Article Type : Research Paper

Abstract :This study has been carried out in Miocene units containing molluscan fauna, deposited in Antalya Miocene basin located at Western and Central Taurids. In the circumstances of this study, the eight stratigraphic sections were measured and the stratigraphy of the basin has been re-evaluated, based on the examination of the chronostratigraphic ranges of the collected samples belonging to the molluscan fauna. In this respect, the Lower Miocene Kepez travertine is the lowermost unit and unconformable with the basement, at the southeast of the basin. Succeded up, the Burdigalian Seving conglomerate of alluvial fan - fan delta character overlies this unit. The Upper Burdigalian - Langhian (Karpatian - Lower Badenian) Oymapınar limestone is composed of reefal - massive limestones and conformably overlies the Seving conglomerate. The Sevinc conglomerate and Oymapınar limestone are also unconformably overlying the basement rocks. The Oymapınar limestone is overlain by Çakallar formation (Upper Burdigalian - Lower Langhian) and Geceleme formation (Langhian). Geceleme formation is overlain by Serravalian - Tortonian levels of the Karpuzçay formation. It is the first in this study, that the units exposed in central and northern parts of the basin have been differentiated from the Aksu formation and defined as the Altınkaya formation. The Altınkaya formation is characterized by brackish water - marinal properties and contains Upper Burdigalian - Langhian (Ottnangian - Karpatian - Lower Burdigalian) molluscan fauna. It unconformably overlies the basement rock units and is overlain by Aksu formation. The Altınkaya formation is also laterally transitional with Upper Burdigalian - Langhian levels of the Karpuzçay formation. The Aksu formation widely cropped out widely at western and central parts of Antalya Miocene basin was dated as Lower Tortonian due to its molluscan fauna. However, the overall age of the formation was accepted as Serravalian - Tortonian. 
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