Yeşilyurt (Alaşehir) Sahasındaki Fluviyal Tortulların Ağır Minarelleri

Basement metamorphiç rocks in the- Yeşilyurt area are ol Paleozoic age- and consist mainly of mica schist, gneiss and granitic gneiss» Finviatile oetlimieiitary' rocks of Neogene age .'range from, anmature to very immature' and the sandstones are primarily littiie arkose to arkose which are derived from the adjacent matamorptiic complex, -'Sandstone and. conglomerate' were deposited, in an alluvial fan-braided diver environment. One heavy mineral association lias been recognized in Miocene sands from the Yeşilyurt area. Detailed optical .and x-ray diffraction studies revealed that heavy minerals' were derived from the nearby low -grade metainorphic basement. Because no- magmatic, with the exception of metamorphosed granite named here as granitic gneiss, and sedimentary rock types older than, the Miocene sediments are identified In or close to the -study area, the main source of the heavy minerals is from purely metainorphic terrains,,. Thus, the heavy minerals' assemblage typical of metamorphie rocks, seen here is hoped to be an important guide for Meffl.ölica.tî.oıı of unknown source rocks.