“…Their petrographic and geochemical characteristics have significant importance in understanding mantle activities in the subduction zones and also mantle-crust interactions. Previous geochemical and geochronological studies largely concentrated on the calc-alkaline plutonic rocks (Aydın et al, 1998;Tatar andBoztuğ, 1998, 2005;Boztuğ and Arehart, 2007;Boztuğ and Harlavan, 2008;Boztuğ et al, 2009;Köksal et al, 2012;Elitok et al, 2014). In contrast, there are few comparative studies of the calcalkaline, transitional, and alkaline igneous rocks with very poor data from alkaline rocks (Boztuğ, 1998(Boztuğ, , 2000Otlu and Boztuğ, 1998;Tatar, 2003;İlbeyli, 1999, 2005İlbeyli et al, 2004Köksal et al, 2004;Köksal and Göncüoğlu, 2008) and little emphasis on their importance for the tectonic evolution of the region and ore deposition.…”