ABSTRACT: The study area is located in the Orta-Şabanözü (Çankırı) region. Various rock units of Triassicto Quaternary crop out. Triassic unit in the area is Kösrelik formation, the Cretaceous unit is Eldivanophiolite. The Miocene rock units are Kurtsivrisi volcanics, Hançili formation, Karakoçaşformation, Hüyükköy formation, Eregez agglomerate and Aydos basalts. Pliocene rocks in the areaare represented by Orta formation and Büyükyakalı formation. Alluvium is formed in Quaternary.Of Tertiary units, Eregez agglomerate, Hançili formation and Orta formation contain coal.It is considered that formation of the basin is associated with northward subduction of NeoTethys ocean under both Sakarya continent and itself since the beginning of Late Cretaceous. Thereare various comments on the Neogene evolution of Çankırı basin resulting from variousobservations. In the area between Orta and Şabanözü (Çankırı) coalification is within Miocene andPliocene deposits. Although lignites of Pliocene Orta formation show a regular extent, they areoccured in a specified part of the basin. Lignite formations within Miocene deposits have no regularand continous extent. Lignite formations, generally observed within the unit differentiated as Eregezagglomerate in NW of the basin and within Hançili formation in SE of the basin, are notdifferantiated clearly owing to the interference of Miocene deposits.