Abstract: Göynük Pb-Zn mineralization is situated in the contact of Lower-Middle Triassic rocks and Upper Permian limestones of Siyah Aladağ Nappe around Aladağ region (Zamantı Pb-Zn province). Paragenesis of mostly carbonated mineralization consist of smithsonite, cerussite, anglesite, galena, pyrite, marcasite, sphalerite, geothite-lepidocrocite, covellite, calcite and quartzSome of very important data, which ore-host rock contacts does not show any differences of mineralogical composition, ore bodyrepresent syngenetic characteristics, magmatic events (or trace`s), an apt indicating origin of mineralization, are not seen close toarea, host rock of ore, limestone, have higher value ofPb, Zn, Cu, Ni and Co than the average composition of limestone, get from field and also laboratory study.From these data Göynük Pb-Zn mineralization appear as "Alpine type carbonate hosted Pb-Zn mineralization ". It is probablyformed by chemical precipitation (and later on carbonatized) from seawater saturated in metal ions between Upper Permian-Lower Middle Triassic.