Geology and age of mineralization around naldöken village (Ayvacık-Çanakkale) in Biga Peninsula

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2016
Yıldız, Gökhan Okan
Kestanbol pluton (Biga Peninsula) NW Turkey and its volcanic assemblages hosts magmatic and hydrothermal mineralization around Naldöken village, AyvacıkÇanakkale. Various rocks assemblages and their spatial with temporal relations was studied to identify their alteration-mineralization characteristics of the study area. By means of this study, Naldöken mineralization is attributed to emplacement of quartz monzodiorite (20.1 Ma), creating potassic alterations on proximal and lithocap with chalcedonic quartz veins and silica cemented breccia dominated mineralization on distal zones. Proposed model for formation of quartz veins and breccia is attributed to NNE-SSW trending dextral coeval faulting creating transtensional stress conditions. Moreover, geochronological and geochemical investigations resulted the emplaced rock bodies and coeval alteration assemblages proved that Naldöken mineralization was occurred during early Miocene (22-19 Ma) in volcanic-arc settings. Investigations also identified the Naldöken mineralization is a typical low-sulfidation mineralization with a porphyry type of root.