Seminar

The Kop ophiolite is a lithospheric fragment of Neo-Tethys Ocean in NE Turkey. It is mainly composed of harzburgite, dunite, chromitite and minor pyroxenite veins. With the obtained petrological and geochemical data of these lithologies, at least three stages of geochemical evolution could be identified in the Kop ophiolite. The first stage referred to the initiation of intra-ocean subduction, which converted lhezolite into harzburgite. Following was the generation of chromitite and dunite, both of which are genetically related to the interaction between mantle-derived melts and harzburgite. The last one involved some processes of refertilization, which were subduction related and probably coeval to the formation of pyroxenite