Akademik Veri Yönetim Sistemi
11th INTERNATIONAL BLACK SEA COASTLINE COUNTRIES SCIENTIFIC RESEARCH CONFERENCE, Samsun, Türkiye, 9 - 10 Mart 2025, ss.439-444, (Tam Metin Bildiri)
Epidote is a sorosilicate with the formula Ca2(Al,Fe)3Si3O12(OH). Confocal Raman Spectrometry (CRS) studies concluded that Raman shifts of epidote minerals are generally seen in the low-frequency region (150-1200 cm-1). It is characteristic in this region that while strong peaks are seen at values of 400 cm-1-420 cm-1, 550 cm-1, 910 cm-1 and 1080 cm-1; the pure epidote crystals have no peaks between 600 cm-1 and 820 cm-1. The clinozoisite minerals have a strong peak at 980 cm-1 and 1090 cm-1 due to the Si-O bond; and at 570 cm-1 due to the Si–O–Si bond. This study aims to describe the epidote mineral formation along the contact zone, shear zone and their formations within the alterations zones. Within the scope of the study, samples were taken from the Himalayan mountains and different provinces in the Anatolian region. The epidote amphibole gneiss from the Himalayan Mountains belt has epidote, garnet, amphibole, plagioclase, quartz, K-feldspar, opaque mineral paragenesis. In Central Anatolia, amphibole, epidote, quartz, plagioclase, K-feldspar and opaque mineral paragenesis are observed in epidote-amphibole gneiss and epidote amphibolite samples from Yozgat. The sample from Niğde has large crystalline quartz and epidote crystals and a contact metasomatic formation. The metagranite sample from Rize has quartz, plagioclase, K-feldspar and epidote minerals. Epidotes were formed under high-pressure conditions in the shear zone. Mylonitic granite samples (Kırşehir City) have muscovite, quartz, plagioclase, chlorite and K-feldspar minerals. The spectra of epidote minerals formed under the influence of dynamic metamorphism in the shear zone showed peaks between 600-800cm-1. On the contrary, no peak was observed in this area for free-forming large epidote crystals in the contact zone. As a result, different spectra were observed in CRS analyses of epidote minerals depending on the mineral's formation conditions.