Abstract: The Altmekin group, which formed the basement of the investigated area, consists of Gözet,Karasivri, Nuras and Bademli formations which are conformable to each other. The dominant lithologiesof Gözet formation are calcschists and greenschists. Karasivri formation is mainly formed of quarzitesand it shows transitions to marbles of Nuras formation. Upper Permian-aged dolomitic limestones ofBademli formation form the upper levels of the Altmekin group. The Koçyaka ophiolitic melange wasemplaced before Upper Campanian and it has tectonic relations with the Altmekin group. Upper Campanian-Lower Maastrichtian aged Maydos formation unconformably overlies the ophiolitic melange. Upper Miocene aged Hoydos formation and Plio-Qua ternary aged alluvioums cover the above mentionedformations.In the region, tectonic activities affected the formations in varying intensities due to their differentlithologic features and formed different types of folds. Approximately E-W striking, faults, overthrusts, fold axes and joints in different directions have been formed by N - S striking structural forces. TheAltmekin group has been thrusted over the ophiolitic melange, after the melange had been emplaced inthe region.