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
Islam in Greece aimed to give the impression that the Muslims of the region are the descendants of Ottoman-era ethnic Greek converts to Islam like the Vallahades of pre-1923 Greek Macedonia and so thereby avoid a possible future situation in which Western Thrace is ceded to Turkey on the basis of the ethnic origin of its Muslim inhabitants. The term "Muslim minority" (Μουσουλμανική μειονότητα "Musulmanikí mionótita") refers to an Islamic religious, linguistic and ethnic minority in western Thrace, which is part of the Greek administrative region of East Macedonia and Thrace. In 1923, under the terms of the Treaty of Lausanne, the Greek