PETROLOGICAL FEATURES OF THE METAMORPHICS OF THE YUKARIÇULHALI-BAŞÇATAK SEGMENT OF THE AKDAĞMADENİ MASSIF

Abstract

The investigated area is within Akdağmadeni massif and is composed generally of metapelites, semimetapelites, metapsammites and metacarbonates as a metasedimentary sequence. These rock units, especially metapelites have mineral paragenesis suitable for petrological evaluation. Petrographic investigation of different schists and gneisses indicate that there are two different metamorphic zones The first one is typically characterized by the biotite+garnet (almandine) paragenesis and is called the I. zone metamorphism and the second is characterized by the sillimanite+kyanite paragenesis called the II. zone metamorphism. Petrogenetic evaluation was carried out by using the assemblages indicating a single-phase progressive dynamothermal-regional metamorphism.