Abstract: The metamorphic rocks exposing in the Yıldızeli region (west of Sivas) to the east of Kırşehir block (Central Anatolian massif orKırşehir massif comprising metamorphic and associated magmatic rocks) are named as Yıldızeli metasedimentary group. It is divided, based on the rock types, in four units as, from bottom to top, the Aşılık metamorphics comprising pelitle gneiss and migmaiites, the Fındıcak metamorphics including the pelitic schist and gneiss, and calcsilicates, the Pelitlikaya quartzite consisting ofquartzite and quartzitic schists, and the Kadıköy metacarbonate.The microscopic study of Fındıcak metamorphite, yields sillimanite + kyanite + muscovite + ortoclase + quartz; sillimanite +muscovite + biotite + ortoclase; quartz + plagioclase, diopside + hornblend + plagioclase + quartz; hornblende + plagioclase +quartz and diopside + hornblend + quartz + plagioclase + scapoUte + calcite paragenesis. In addition to these paragenesis, post -tectonic epidote overgrowth in the hornblende - gneisses, replacement of diopside by tremolite in the diopsite - hornblende gneisses,transforation of calcsilicatic gneiss in talc - tremolite schist, and mica overgrowths on feldspars in the mica gneiss are also common and characteristic features of Fındıcak metamorphics were also determined.The hornblende - plagioclase, garnet - muscovite - biotite - plagioclase - kyanite, garnet - muscovite - biotite - plagioclase andmuscovite - biotite - chlorite geobarometries show that the first metamorphism occured under high pressure conditions. Followingthe high pressure metamorphism, the temperature increased, resulting in the transformation of kyanite in fibrolitic sillimanite. During the uplifting, a retrograde greenschist fades cataclastic metamorphism overprinted on the earlier fabrics due to decompressional regime. The last metamorphic event occured during Santonian - Maestrihtian time (K - Ar ages of muscovite and biotite, are71.8 ±23 Ma-77.7±1.8 and 68.1 ±1.8 Ma -723 ±2.1 Ma, respectively).