Fig. 4
Characteristic textural features of the Ordovician–Carboniferous units in the IT. a Bedding (S0) and cleavage planes (S1) perpendicular to each other in a slate of Kocatöngel formation (ppl plane polarized light), b CMS cut by cleavage planes in metasiltstone of Kurtköy formation (ppl), c sutured margin relationships of quartz grains and a matrix composed by fine-grained white mica and chlorite, and oriented mica flakes in metasandstone of Aydos formation (cn crossed nicols), d authigenetic chlorite (Chl) without preferred orientation within the pores of a siltstone of Kartal formation (ppl), e groundmass depicting a weakly developed orientations, cut by post-sedimentary carbonate filling fissures in a biomicritic limestone of Dolayoba formation (ppl), f oriented radiolarian fossils within the iron-oxide and clay matrix in a radiolarite of Baltalimanı formation (ppl)