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roshanravan N, Hajialioghli R, Moayyed M. Petrological studies of contact metamorphism of Kahar Formation in the northern margin of Misho granitoid (southwest of Marand, northwest of Iran). www.ijcm.ir 2024; 32 (4) :645-654
URL: http://ijcm.ir/article-1-1899-en.html
URL: http://ijcm.ir/article-1-1899-en.html
1- Department of Earth Sciences, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran
Abstract: (676 Views)
Contact metamorphism of Mishu is about 1 km wide and is surrounded the Cadomian Mishu granites. This Contact metamorphism is located in the southwest of Marnd city, Azerbaijan Province northwest of Iran. Based on injection of granites into Kahar Formation, the contact metamorphism facies can be identified easily, respectively albite-epidote hornfels to pyroxene hornfels facies. At high grade, hornfels with appropriate component show evidence of partial melting. Contact rocks of Mishu that are exposed in south west of Eyshabad village spans a wide range in grade and proceeding upgrade metamorphic's phase that occurs such as: 1) slates which were regionally metamorphosed relate to Kahar Formation, 2) biotite cordierite hornfels that first appear by occuring biotite and cordierite in the spot slate, 3) andalusite cordierite biotite hornfels with abundant porphyroblasts of cordierite and andalusite and 4) developments of K-feldspar-sillimanite hornfels and rocks with appearance of anatectic migmatites. This paper focus on contact rocks from the view point of mineralogy, texture, chemical composition and tectonic setting of protolith are distinguish.
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