Study area covers Ilipinar Village and its surrounding area between Aliaga, Menemen and Foca districts, NW of Izmir city. This region is located on Izmir-Ankara Zone (Brinkmann, 1966) which is an important tectonic structure of Paleotectonic era between Sakarya Continent in the North and Menderes Massif in the South East. Stratigraphic and structural relations between volcanic/volcanoclastic rocks and terrestrial sediments (mainly river and lake deposits) were studied within approximately 72 km(2) area. 1/25.000 scaled geological map of the area prepared by previous researchers was revised by using Geographic Information Technologies (GIS) and petrographic/petrologic investigations of hand specimens were also analysed.