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
Albanian-speakers of Western Thrace Albanian-speakers of Western Thrace Albanian-speakers form a linguistic minority in Greek Macedonia and Western Thrace along the border with Turkey. They speak the Northern Tosk subbranch of Tosk Albanian and are descendants of the Albanian population of Eastern Thrace who migrated during the Population exchange between Greece and Turkey in the 1920s. They are known in Greece as Arvanites, a name applied to all groups of Albanian origin in Greece, but which primarily refers to the southern dialectological group of "Arbëreshë". The Albanian-speakers of Western Thrace and Macedonia use the common Albanian self-appellation, "Shqiptar". During the Ottoman Empire, Albanian communities