نوع مقاله : مقاله پژوهشی
نویسندگان
1 گروه زمین شناسی، دانشکده علوم طبیعی، دانشگاه تبریز، تبریز، ایران
2 Faculty of Natural Sciences, University of Tabriz, 29 Bahman Blvd, Tabriz, East
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
The Ediacaran granitoid complex of Mishow, located in the southwest of Marand County, northwestern Iran, covers an area of approximately 50 km² and appears as a semi-deep, horseshoe-shaped intrusion. Petrographically, the complex comprises a compositional range from leucogranite to diorite. The granites include two distinct types: ,Microstructural and petrographic analyses reveal fibrolitic sillimanite with bent textures, concentrated in high-strain zones, which indicate progressive deformation in high-grade metapelites. These observations are well supported by Raman spectroscopy data, where peak shifts in sillimanite spectra reflect structural and crystallographic changes induced by pressure and deformation.Therefore, Raman spectroscopy serves as a sensitive and precise tool for qualitatively and quantitatively constraining metamorphic conditions such as pressure, temperature, and strain intensity. The strong agreement between petrographic and spectroscopic data enhances the reliability of the interpretations.
Keywords: Contact metamorphism, Sillimanite, Microstructure, Raman spectroscopy
کلیدواژهها [English]
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