Amphiboles from metabasites yield Jurassic 40Ar/39Ar plateau ages (159.4 ± 0.4 Ma and 163.5 ± 0.8 Ma).
The new data indicates Late Jurassic subduction–accretion in the Central Pontides.
Geochemistry and isotopes of metabasic rocks indicate N-MORB, E-MORB, OIB and IAT sources.
Ophiolitic rocks were formed in a supra-subduction tectonomagmatic environment.