Abstract: This study is aimed to establish the depositional model and fades properties of Upper Cretaceous Carbonate apron sediments in the Akdere Basin, at Eastern Taurus (Gürün - SW Sivas). In the area, 2 - 7 m thick and km`s in length; resedimented calciclastic deposits and not including channel systems which are parellel to the basin slope - platform margin are present in tlie Akdere Basinslope developed as a result which as a result of partly collapsed and subsidence of carbonate platform during the Late Cretaceous.These deposits are an example of carbonate apron model which is an alternative to the submarine fan models of the siliciclastic deposits. These mainly consist of materials derived from platform margin rudistic reef buildups. The thin bedded - laminated limestone and marl is observed in the area of platform margin, whereas, in the basin slope thick conglomerate I breccia levels and intercalatedcalcarenites are encountered within basin, clayey limestone and marl dominated lithologic assemblage transitional with basin - slope units are present. The one or more of these rock units make upper slope, apron and basin fades assemblages. Syndeposition altectonism, low stand and highstand in sea level changes effectively controlled the deposition. Due to continued faulting of platform margin and basin slope and increased slope amount, the materials derived from platform margin rudistic buildups resedimented inthe basin slope, in the form of calciclastic sequences. Although these type of sediments sliould form the submarine fan, due to highslope amount, they are deposited as subslope areas. These sediment fills are inter fingering with basinal, basin slope, sedimentarydeposits and comprise the pelagic mudstone - wackestone, conglomerate I breccia, bio - lithoclastic packstone - grainstone fadesand mudstone fades of an carbonate apron fill models.