ASGP (2002), vol. 72: 263-270

RELATIVE SEA-LEVEL CHANGES RECORDED IN BORINGS FROM A MIOCENE ROCKY SHORE OF THE MUT BASIN, SOUTHERN TURKEY

Alfred UCHMAN (1), Huriye DEMÍRCAN (2), Vedia TOKER (2), A. Sami DERMAN (3), Serkan SEVIM (2) & Joachim SZULC (1)

1) Institute of Geological Sciences, Jagiellonian University, Oleandry 2a; 30-063 Kraków, Poland
2) Department of Geological Engineering, Faculty of Sciences, Ankara University, 06100 Tandogan-Ankara, Turkey
3) Turkish Petroleum Corporation, Mustafa Kemal Mahallesi 2, Cadde 86, 06520 Ankara, Turkey

Uchman, A., Demírcan, H., Toker, V., Derman, S., Sevim, S. & Szulc, J., 2002. Relative sea-level changes recorded in borings from a Miocene rocky shore of the Mut Basin, southern Turkey. Annales Societatis Geologorum Poloniae, 72: 263-270.

Abstract: Cretaceous limestones from the basement of the Neogene Mut Basin are strongly sculptured by borings, including mainly clionid sponge borings Entobia ispp., bivalve borings Gastrochaenolites torpedo and G. lapidicus, the polychaete boring Caulostrepsis taeniola and Meandropolydora isp. The borings are replaced subsequently; as a rule the succession begins with C. taeniola and terminates with Entobia ispp.
The discussed boring producers display various tolerance for light, energy and depth conditions, hence their succession may reflect environmental changes, related to marine transgression, proceeded upon rocky coast area. Since such a coast could be devoid of sedimentation for a long time, the possible reconstruction of relative sea-level change may be inferred exclusively from nonsedimentological criteria i.e. from the succession of endolithic borings. Therefore the borings may be employed as useful tool in sequence stratigraphic procedure.