Abstract: The ophiolites having melange characteristic cropping out the southeast of Şarkışla (Sivas) town have emplaced as olisthostrome during the flysch sedimentation of Lower Tertiary. Olisthostrome which has the 300 mof thickness can be followed 8.5 km laterally. The olisthostrome lies near the top of the Lower Tertiary flysch whichis interbedded volcanic materials. Deformations which is interested with slumping has been observed in the flyschbeds at the lower contact between the olisthostrome and flysch. In addition, the slumping folds have been presentedin the flyseh beds near the lower contact of the olistbostrome. Serpantinites dominates in the ophiolitic melange,which constitutes theolisthostrome. It also consist of peridotit, diabase, tuff, radiolarite and limestone olistholistes,which range size from a few dm to 0.25 km. The fossils in this limestone olistholites are of Upper Cretaceous age.The emplacement age of olisthostrome is of Middle-Upper Paleocene.