<p>On this research, farahzad area, on north of Mojen, Shahroud and Darkhaniab on east of Mojen of late cretaceous age, in order to identify the sedimentary environment and facies is mentioned as field and laboratory research. After selecting two sections for studing and get 110 samples, 18 facies which were deposited through facies belt of tidal zone, lagoon, barrier islands and open marine were found such as: 1.Spicule bioclast wackestone/packstone 2.Bioclast wackestone 3.Bioclast packstone 4.Echinoderm bioclast packstone 5.Echinoderm intraclast packstone 6.Intraclast grainstone 7.Echinoderm intraclast grainstone 8.Echinoderm bioclast grainstone 9.Intraclast bioclast grainstone 10.Red algal echinoderm grainstone 11.Mixed grainstone 12.Red algal packstone/ grainstone 13.Pelloid bioclast packstone/grainstone 14.Intraclast bioclast packstone 15.Pelloid miliolidae wackestone/packstone 16.Pelloid grainstone 17.Lime mudstone 18.Calcareous sandstone. Finally, by mention of variety, categories and survey of identified facies sedimentation environment of studied carbonate sediments zone can be named as a carbonate rimmed shelf.</p>