(a) A tectonic map of Turkey and the Eastern Mediterranean region illustrating major suture zones, faults systems, ophiolite outcrops, and tectonic units (Legeay et al., 2019). (b) N‒S cross-section showing the relationship between crustal blocks and ophiolites (Legeay et al., 2019). (c) A geological map of the Sivas Basin with the sampling zone indicated by a yellow point. The location of the sampling zone is illustrated by a black square (b, c). conglo.: conglomerate; limest.: limestone; numm.: nummulitic; sandst.: sandstone.