Trakya havzasındaki eosen ve oligosen yaşlı Gaziköy ve Keşan formasyonlarındaki kumtaşları ve şeyllerin diyajenezi

The sandstone and shale samples from the Keşan and Gaziköy Formations in the Kumbağ, Tekirdağ, West of Istanbul have features of different facies of turbidities. For the basin analysis, we need interpretation of the sedimentary rocks of their depositional environment. The diagenetic evolution of these sandstones and shales caused many changes in porosity and permeability developments and their grain morphologies. Hence the composition and structure of the grain surface have to be known and their influences on pore walls and connection paths. The major issue of this study is to determine on the pore geometry and the grain surface roughness, which were formed from the authigenic minerals during diagenetic changes. Samples are analyzed by using some technical analysis such as X-ray Diffraction (XRD) for investigation crystal habits of authigenic minerals and cement textures. Rock composition is revealed by optical microscopy.