This study aims to investigate and correlate the mineralogical-petrographic characteristics of Metamorphites in Göksun, Afşin and Ekinözü in the Southeast Anatolian Metamorphic Massifs. In this context, the optical microscopy and XRD investigations were performed on several samples. Göksun Metamorphites are constituted by phyllite, calcphyllite, marble and they contain mainly calcite, dolomite, quartz, feldspar, phyllosilicate. KI and b-cell dimension data reflect high anchizone-epizone and medium pressure conditions. Afşin Metamorphites are represented by phyllite, calcphyllite, calcschist, micaschist, amphiboleschist, marble. Phyllosilicates have consisted of illite/mica, IIb chlorite, mixed-layers, smectite. KI and b-cell dimension data correspond to the subgreenschist-greenschist facies conditions. Ekinözü Metamorphites are made of chloriteschist, amphiboleschist, micaschist, micagneiss in lower parts, while calcitic and/or dolomitic marbles are present in the upper parts. Mica is dioctahedral and trioctahedral, whereas chlorite tends to be trioctahedral. Based on mineral associations, Ekinözü Metamorphites belong to amphibolite facies in the lower parts, but the greenschist facies conditions at the upper parts. The coarse-grained biotite, muscovite and chlorite are accompanied by mixed-layers. According to mineral composition and degrees of metamorphism, Göksun and Afşin Metamorphites are similar to the Keban and Malatya Metamorphites; however, Ekinözü Metamorphites to Pütürge Metamorphites. The data show that metamorphics in the western extension of the Southeast Anatolian Metamorphic Massifs have different origin and/or lithologies according to the regions, increasing temperature-pressure conditions from Göksun to Ekinözü and have groups of rock with different geological evolutions.
Southeast Anatolian Metamorphic Massifs Phyllosilicate mineralogy Metamorphism XRD
This study has been supported by the project number M510 by the Head of Scientific Research Projects of the Sivas Cumhuriyet University. We thank technical staff in the laboratories of Geological Engineering Department for their helps during the preparation of thin section and XRD analyses, to Assoc. Prof. Dr. Sema Tetiker for her supports during XRD studies, to Assoc. Prof. Dr. Taner Ekici and to Prof. Dr. Musa Alparslan for their contributions during the petrographic examinations, to Assoc. Prof. Dr. B. Levent Mesci and Dr. Derya Toksöz for map drawings and trainee students for their assistance during field and laboratory studies. We also thank Dr. Branimir Segvic who edited and reviewed the manuscript.
Birincil Dil | İngilizce |
---|---|
Konular | Mühendislik |
Bölüm | Makaleler |
Yazarlar | |
Yayımlanma Tarihi | 15 Ağustos 2020 |
Yayımlandığı Sayı | Yıl 2020 Cilt: 162 Sayı: 162 |
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