Türkiye Jeoloji Bülteni

Geochemistry and Genetic Interpretation of Alkaline Rocks in the Bayındır-Akpınar (Kaman) Area

Abstract: In the present study, the genetic interpretation of the alkaline rocks around BayındırAkpınar (Kaman) region within the Kırşehir Massif, are tried to be explained by determining their pet*rographical and geochemical properties. The alkaline rocks in the study area show a succession as syenitoids and volcanits. Syenitoids have quartz syenite and feldspathoidal syenite composition. Feldspathoidal syenites (miaskite, sodalite syenite and foyaite) are of miaskiftie character in terms of their minera*logic and chemical properties Volcanits are of phonolite and tephritic phonolite types.Basing on their petrographical and geochemical properties, the rock associations in concern are formed from different magmas derived from different source meterials, but not from the fractional crystallization of a single magma.