Mineral chemistry and physical conditions of crystallization in Filshour and Goft dioritic intrusions, Southwest of Sabzevar

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Hedayaty Kharagh Seyedeh nafiseh; GHASEMI HABIBOLLAH; Kazemi Hassanvand Zakiyeh

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Journal: Iranian Journal of Crystallography and Mineralogy Year:2019 | Volume:27 | Issue:3 Page(s): 667-682

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Title

Mineral chemistry and physical conditions of crystallization in Filshour and Goft dioritic intrusions, Southwest of Sabzevar

Author(s)

Hedayaty Kharagh Seyedeh nafiseh | GHASEMI HABIBOLLAH | Kazemi Hassanvand Zakiyeh | Issue Writer Certificate

Keywords

Mineral chemistryQ1

thermobarometeryQ1

dioritic intrusionsQ1

SabzevarQ2

IranQ2

Abstract

The Late cretaceous dioritic intrusions of Filshour and Goft in southwest of Sabzevar are situated in the northern edge of central Iran zone. The rocks of these plutons show porphyry, granular, ophitic and subophitic textures and are composed of amphibole, plagioclase and clinopyroxene (in diorites), along with quartz (in quartz diorites). The amphiboles of these rocks are in the group of calcic amphiboles and Mg-hornblende type. Plagioclase composition ranges from anorthite to labradorite. The obtained equilibrium and closing temperatures and pressures in amphiboles and plagioclases based on different thermo-barometery methods are in the range of 763-918 Cº and 3-5. 5 Kb (10-18 Km depths). The Pyroxenes are in the range of Ca-Mg-Fe pyroxenes with augitic composition and crystallized from a magma under the high oxygen fugacity in 2-5 Kb pressures and 1000-1100 º C temperatures. The amphibole and pyroxene chemistries indicate the subalkaline nature of the magma and a subduction related magmatic arc setting for these intrusions that is compatible with the intra-oceanic island arc environment of the Upper Cretaceous magmatic rocks of the supra-subduction oceanic basin of Sabzevar.

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APA: Copy

Hedayaty Kharagh, Seyedeh nafiseh, GHASEMI, HABIBOLLAH, & Kazemi Hassanvand, Zakiyeh. (2019). Mineral chemistry and physical conditions of crystallization in Filshour and Goft dioritic intrusions, Southwest of Sabzevar. IRANIAN JOURNAL OF CRYSTALLOGRAPHY AND MINERALOGY, 27(3 ), 667-682. SID. https://sid.ir/paper/3958/en

Vancouver: Copy

Hedayaty Kharagh Seyedeh nafiseh, GHASEMI HABIBOLLAH, Kazemi Hassanvand Zakiyeh. Mineral chemistry and physical conditions of crystallization in Filshour and Goft dioritic intrusions, Southwest of Sabzevar. IRANIAN JOURNAL OF CRYSTALLOGRAPHY AND MINERALOGY[Internet]. 2019;27(3 ):667-682. Available from: https://sid.ir/paper/3958/en

IEEE: Copy

Seyedeh nafiseh Hedayaty Kharagh, HABIBOLLAH GHASEMI, and Zakiyeh Kazemi Hassanvand, “Mineral chemistry and physical conditions of crystallization in Filshour and Goft dioritic intrusions, Southwest of Sabzevar,” IRANIAN JOURNAL OF CRYSTALLOGRAPHY AND MINERALOGY, vol. 27, no. 3 , pp. 667–682, 2019, [Online]. Available: https://sid.ir/paper/3958/en

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