Browse

Post collisional volcanic rocks cover large areas in the east of the Biga peninsula, which is located in the NW Anatolian magmatic belt along the southern margin of Marmara Sea. These volcanic units span a compositional range from calc-akaline (i.e. andesite, dacite, and rhyodacite to rhyo lite), to alkaline (olivine basa lts) lavas. All rock units display coherent variation trends on the major and trace element Harker diagrams. Cenozoic volcanic sequences exposed in the east of Biga are divided into three volcano...