Thrace Basin Thrace Basin The European side of Turkey is called the Thrace Basin. It is the largest and thickest Cenozoic sedimentary basin in Turkey. The basin is triangular shaped, trends WNW-ESE and was formed by extension in late Middle Eocene to latest Oligocene times. This gas prone basin is located northwest of Istanbul, Turkey. About 9,000 meters of Eocene-Miocene marine clastics and continental sediments were deposited. Several basement faults were reactivated and underwent strike-slip motion in late Miocene times where the famous North Anatolian Fault bounds the southern part of the basin. The Cenozoic sedimentary succession, overlying Paleozoic to Mesozoic metamorphic
Bulgarians in Turkey Orthodox Bulgarians who settled in Ottoman-ruled northwestern Anatolia, possibly in the 18th century, and remained there until 1914. Much more intense was the fate of the Bulgarian population of Eastern Thrace in the Ottoman Province ("vilâyet") of Edirne. According to Lyubomir Miletich's detailed study of the province published in 1918, the Bulgarian population of the province (today mostly in Turkey, with smaller parts in Greece and Bulgaria) in 1912 numbered 298,726, of whom 176,554 Exarchists, 24,970 Patriarchists, 1,700 Eastern Catholics and 95,502 Muslims (Pomaks). In the Çorlu and Constantinople regions, Miletich estimates the Bulgarian population at a further 10,000. After