Petrogenesis of the Late Cretaceous Demirköy Igneous Complex in the NW Turkey: Implications for magma genesis in the Strandja Zone

Based on geochemical and isotopic characteristics this magmatic complex can be subdivided into 4 groups: a) gabbro, b) diorite to alkali granite (main body), c) syenite/monzonite and d) mafic dykes. Geochemical data and modelling results favour a typical subduction-related enriched lithospheric mantle and lower crustal source for the Demirköy Igneous Complex. Slab-derived fluids and crustal contamination also played a key role in the petrogenesis of this magmatic suite.