Abstarct: Hercynian basement of Eastern Pontide orogenic belt, NE-Turkey, is made up of the metamorphics andcrosscutting granitoids outcropping mainly in the Bayburt and Gümüşhane areas. Mesozoic basins are examplified bytwo rifting phases, sepereted by a calm tectonic period. First rifting phase occured in Early Liassic, resulting in thebreak-up of the Hercynian basement. Sedimentary rocks of period show sudden fades- and thickness variations. Firstrifting phase ended in the Early Dogger, is succeeded by carbonate platform formation from the Dogger to LowerCretaceous in Gümüşhane, in Dogger-Malm in Bayburt area. Cesseation of the calm tectonic period is recognised bya syn-sedimentary discontinuity. This event is called as second rifting phase, which starten during the middleCretaceous in the vicinity of Gümüşhane, and late Malm in Bayburt. Similar facies sedimentary prisms are developedin both areas, notwithstanding in different periods.