The study of continuous and discontinuous zoning of garnet mineral in the migmatites of the Hamedan region and its petrogenetic applications

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JAFARI SEYEDEH RAZIEH; SEPAHI ALI ASGHAR; MOAZZEN MOHSEN; SHAHBAZI HOSSEIN

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Journal: Iranian Journal of Crystallography and Mineralogy Year:2019 | Volume:27 | Issue:1 Page(s): 31-46

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Title

The study of continuous and discontinuous zoning of garnet mineral in the migmatites of the Hamedan region and its petrogenetic applications

Author(s)

JAFARI SEYEDEH RAZIEH | SEPAHI ALI ASGHAR | MOAZZEN MOHSEN | SHAHBAZI HOSSEIN | Issue Writer Certificate

Keywords

ZoningQ2

garnetQ2

partial meltingQ2

migmatiteQ2

HamedanQ2

Abstract

In the Hamedan region, migmatitic rocks with various structures cropped out that stromatic structure is the most abundant. Index minerals of metapelites such as garnet (almandine), staurolite, andalusite, sillimanite, kyanite, fibrolite, cordierite, plagioclase (andesine) and spinel (hercynite) are present in these rocks. garnet has occurred in all three parts of leucosome, paleosome, and melanosome of migmatites and has been affected by various metamorphic events (progressive, retrograde, and partial melting). garnets have continuous and discontinuous chemical Zoning for index elements Fe, Mg, Mn and Ca, where the behavior of these elements is not the same. Some factors such as the presence of multi-nucleus single crystals, the participation or none participation of garnets in the process of partial melting and polymetamorphism of area have important role in it. The discontinuity in the growth of crystals represents a re-growth during an individual metamorphic event, and it can represent two metamorphic events.

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APA: Copy

JAFARI, SEYEDEH RAZIEH, SEPAHI, ALI ASGHAR, MOAZZEN, MOHSEN, & SHAHBAZI, HOSSEIN. (2019). The study of continuous and discontinuous zoning of garnet mineral in the migmatites of the Hamedan region and its petrogenetic applications. IRANIAN JOURNAL OF CRYSTALLOGRAPHY AND MINERALOGY, 27(1 ), 31-46. SID. https://sid.ir/paper/4170/en

Vancouver: Copy

JAFARI SEYEDEH RAZIEH, SEPAHI ALI ASGHAR, MOAZZEN MOHSEN, SHAHBAZI HOSSEIN. The study of continuous and discontinuous zoning of garnet mineral in the migmatites of the Hamedan region and its petrogenetic applications. IRANIAN JOURNAL OF CRYSTALLOGRAPHY AND MINERALOGY[Internet]. 2019;27(1 ):31-46. Available from: https://sid.ir/paper/4170/en

IEEE: Copy

SEYEDEH RAZIEH JAFARI, ALI ASGHAR SEPAHI, MOHSEN MOAZZEN, and HOSSEIN SHAHBAZI, “The study of continuous and discontinuous zoning of garnet mineral in the migmatites of the Hamedan region and its petrogenetic applications,” IRANIAN JOURNAL OF CRYSTALLOGRAPHY AND MINERALOGY, vol. 27, no. 1 , pp. 31–46, 2019, [Online]. Available: https://sid.ir/paper/4170/en

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