GENESIS OF UNUSUAL MINERAL ASSEMBLAGE IN THE TRONDHJEMITES OF SOLTAN ABAD AREA (NE SABZEVAR): EVIDENCES OF CRYSTALLIZATION AND EMPLACEMENT CONDITIONS OF MAGMA

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NASRABADY MOHSEN

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Journal: PETROLOGY Year:2011 | Volume:2 | Issue:5 Page(s): 113-132

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Title

GENESIS OF UNUSUAL MINERAL ASSEMBLAGE IN THE TRONDHJEMITES OF SOLTAN ABAD AREA (NE SABZEVAR): EVIDENCES OF CRYSTALLIZATION AND EMPLACEMENT CONDITIONS OF MAGMA

Author(s)

NASRABADY MOHSEN | Issue Writer Certificate

Keywords

TRONDHJEMITEQ2

MAGMATIC EPIDOTEQ3

MAGMATIC GARNETQ2

SOLTAN ABADQ2

SABZEVARQ2

Abstract

Some intrusion bodies have been injected into the metamorphic complex consisting of green schist, blue schist and Garnet-amphibolite rocks in SOLTAN ABAD area (NE SABZEVAR). The intrusion bodies are TRONDHJEMITE in composition and display adakitic characteristics. Trondhjemitic melts that generated by metabasites partial melting or differentiation of mafic magma at the shallow levels of the crust consisting of usual minerals such as sodic-plagioclase + quartz ± amphibole ± biotite. Microscopic and field evidences, whole rock chemical composition of TRONDHJEMITE and adjoining Garnet-amphibolites blocks, thermobarometry calculations of adjacent metamorphic rocks and simultaneity of metamorphic and magmatic events indicate that metamorphism and partial melting of subducted oceanic lithosphere has occurred at the depth of a hot subduction zone, consequently adakitic melt and Garnet-amphibolite restite generated. The formation and crystallization of the melt at the deep levels, high rate of magma ascent toward the surface and the abundance of water-bearing fluids during emplacement caused crystallization and survival of an unusual paragenesis containing of quartz, albite, muscovite (magmatic and non-magmatic), epidote (magmatic and non-magmatic) ± garnet (magmatic) ± amphibole (magmatic and non-magmatic).

Cites

PETROGENESIS OF HORNBLENDITIC DYKES FROM SOUTHWEST SOLTAN ABAD (NE SABZEVAR)

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APA: Copy

NASRABADY, MOHSEN. (2011). GENESIS OF UNUSUAL MINERAL ASSEMBLAGE IN THE TRONDHJEMITES OF SOLTAN ABAD AREA (NE SABZEVAR): EVIDENCES OF CRYSTALLIZATION AND EMPLACEMENT CONDITIONS OF MAGMA. PETROLOGY, 2(5), 113-132. SID. https://sid.ir/paper/197080/en

Vancouver: Copy

NASRABADY MOHSEN. GENESIS OF UNUSUAL MINERAL ASSEMBLAGE IN THE TRONDHJEMITES OF SOLTAN ABAD AREA (NE SABZEVAR): EVIDENCES OF CRYSTALLIZATION AND EMPLACEMENT CONDITIONS OF MAGMA. PETROLOGY[Internet]. 2011;2(5):113-132. Available from: https://sid.ir/paper/197080/en

IEEE: Copy

MOHSEN NASRABADY, “GENESIS OF UNUSUAL MINERAL ASSEMBLAGE IN THE TRONDHJEMITES OF SOLTAN ABAD AREA (NE SABZEVAR): EVIDENCES OF CRYSTALLIZATION AND EMPLACEMENT CONDITIONS OF MAGMA,” PETROLOGY, vol. 2, no. 5, pp. 113–132, 2011, [Online]. Available: https://sid.ir/paper/197080/en

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