Thrace Basin basement, comprises interbedded fine to coarse grained clastics from a variety of depositional environments, turbidite, muddy carbonates with local reef developments, river channels and tuffs. More than 400 wells were drilled till 2008; 14 gas and 3 oil fields were discovered and all of them are producing. Main gas productions zones are between Eocene- Oligocene deposits; Hamitabat (turbiditic sandstones), Ceylan (tuffs), Sogucak (reefal limestone), and Osmancik (deltaic sandstone) formations. Shales of Hamitabat and Mezardere formations have good source potentials. Thrace Basin The European side of Turkey is called the Thrace Basin. It is the largest and thickest Cenozoic sedimentary basin
Geography of Turkey Geography of Turkey Turkey is situated in Anatolia (97%) and the Balkans (3%), bordering the Black Sea, between Bulgaria and Georgia, and bordering the Aegean Sea and the Mediterranean Sea, between Greece and Syria. The geographic coordinates of the country lie at: The area of Turkey is ; "land:" , "water:" . Turkey extends more than from west to east but generally less than from north to south. The total area (of about ) consists of about in Western Asia (Anatolia) and about in Southeastern Europe (Thrace). Anatolia () is a large, roughly rectangular peninsula, situated In Asia. The Anatolian