MINERALOGY AND GENESIS OF JOVEINAN IRON SKARN (CENOZOIC MAGMATIC ARC, NORTH OF ISFAHAN)

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SHERAFAT SHAHZAD; MACKIZADEH MOHAMMAD ALI

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Journal: PETROLOGY Year:2017 | Volume:8 | Issue:29 Page(s): 89-108

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Title

MINERALOGY AND GENESIS OF JOVEINAN IRON SKARN (CENOZOIC MAGMATIC ARC, NORTH OF ISFAHAN)

Author(s)

SHERAFAT SHAHZAD | MACKIZADEH MOHAMMAD ALI | Issue Writer Certificate

Keywords

METASOMATISMQ2

CONTACT METAMORPHISMQ2

JOVEINAN SKARNQ1

NORTH ISFAHAN MAGMATIC ARCQ1

Abstract

Joveinan marbles and skarns are located 5 km NE of Ghohrood and 140 km NW of Isfahan in the *central part of Urumieh- Dokhtar magmatic arc. Intrusion of Ghohrood granitoid into the Cretaceous carbonate rocks caused the CONTACT METAMORPHISM and formation of skarn mineral paragenesis wollastonite, clinopyroxene, garnet, actinolite, epidote, chlorite, calcite, quartz, magnetite and sulfides (iron and copper). Mineralogical studies and paragenetic mineral relations confirm that the JOVEINAN SKARN is polygenetic in origin and evolved in two major stages, metamorphism and METASOMATISM (progressive and retrogressive). In metamorphism stage that occurred immediately after the granitoid magma emplacement within carbonate rocks, Joveinan marbles were formed. Metasomatic stage occurred with generation of anhydrous calc-silicates minerals such as wollastonite, diopsidic-hedenbergitic pyroxene and ugrandite garnets. The main stage of retrograde metasomatic, alteration of primary calc-silicate minerals of skarn (pyroxene-garnet), caused the formation of epidote, actinolite and chlorite. The association of wollastonite, magnetite and andradite represents that skarn crystallized in over 550oC temperature range and low partial pressure of CO2. JOVEINAN SKARN is a calcic skarn that has been formed at shallow depth by oxidative hydrothermal fluids and evolved in different stages.

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APA: Copy

SHERAFAT, SHAHZAD, & MACKIZADEH, MOHAMMAD ALI. (2017). MINERALOGY AND GENESIS OF JOVEINAN IRON SKARN (CENOZOIC MAGMATIC ARC, NORTH OF ISFAHAN). PETROLOGY, 8(29 ), 89-108. SID. https://sid.ir/paper/196977/en

Vancouver: Copy

SHERAFAT SHAHZAD, MACKIZADEH MOHAMMAD ALI. MINERALOGY AND GENESIS OF JOVEINAN IRON SKARN (CENOZOIC MAGMATIC ARC, NORTH OF ISFAHAN). PETROLOGY[Internet]. 2017;8(29 ):89-108. Available from: https://sid.ir/paper/196977/en

IEEE: Copy

SHAHZAD SHERAFAT, and MOHAMMAD ALI MACKIZADEH, “MINERALOGY AND GENESIS OF JOVEINAN IRON SKARN (CENOZOIC MAGMATIC ARC, NORTH OF ISFAHAN),” PETROLOGY, vol. 8, no. 29 , pp. 89–108, 2017, [Online]. Available: https://sid.ir/paper/196977/en

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