GEOTHERMOBAROMETRY OF KHUNRANG INTRUSIVE COMPLEX (NORTHWEST OF JIROFT, KERMAN PROVINCE): CONSTRAINT ON USING MINERAL CHEMISTRY OF AMPHIBOLE TO DETERMINE CHARACTERISTICS OF PARENTAL MAGMA

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SEDIGHIAN SOODEH; DARGAHI SARA; ARVIN MOHSEN; NAKASHIMA KAZUO

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Journal: PETROLOGY Year:2018 | Volume:9 | Issue:34 Page(s): 1-20

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Title

GEOTHERMOBAROMETRY OF KHUNRANG INTRUSIVE COMPLEX (NORTHWEST OF JIROFT, KERMAN PROVINCE): CONSTRAINT ON USING MINERAL CHEMISTRY OF AMPHIBOLE TO DETERMINE CHARACTERISTICS OF PARENTAL MAGMA

Author(s)

SEDIGHIAN SOODEH | DARGAHI SARA | ARVIN MOHSEN | NAKASHIMA KAZUO | Issue Writer Certificate

Keywords

AMPHIBOLEQ2

MINERAL CHEMISTRYQ1

INTRUSIVE COMPLEXQ3

SANANDAJ- SIRJAN ZONEQ2

Abstract

The Khunrang INTRUSIVE COMPLEX (KIC), as one of the largest complexes in the southern part of the SANANDAJ- SIRJAN ZONE, is located in the northwest of Jiroft in the Kerman province. The complex consists mainly of acidic-intermediate felsic rocks of diorite, quartz diorite, tonalite, granodiorite and granite with subordinate amounts of hornblende gabbro and microgabbro as mafic members. The general texture of the samples is hypidiomorphic granular; but porphyry texture with microgranular groundmass also occasionally occurs in felsic samples. MINERAL CHEMISTRY studies on the AMPHIBOLE crystals from both felsic and mafic parts of the KIC show that they are S-Amph type and magnesio-hornblende in composition that formed in a relatively oxidized environment in an active continental margin. The plagioclases have a range of composition from labradorite (An50.4Ab49.0Or0.6) to oligoclase (An26.2Ab73.0Or0.9) with an average of andesine (An36.6Ab62.6Or0.8) and bytownite (An89.6Ab10.4Or0.0) to andesine (An35.8Ab56.0Or8.2) with an average of labradorite (An56.8Ab41.9Or1.3) for felsic and mafic samples, respectively. Based on geothermobarometry studies on AMPHIBOLEs and also AMPHIBOLE-plagioclase pairs, the average temperatures of 760-783oC and 691-717oC with pressure ranges of<1 to 4.7 and 1.8 to 3.4 Kbar were estimated for felsic and mafic samples, respectively. The calculated pressures are equivalent to near the surface conditions to the depth of approximately 17 km.

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APA: Copy

SEDIGHIAN, SOODEH, DARGAHI, SARA, ARVIN, MOHSEN, & NAKASHIMA, KAZUO. (2018). GEOTHERMOBAROMETRY OF KHUNRANG INTRUSIVE COMPLEX (NORTHWEST OF JIROFT, KERMAN PROVINCE): CONSTRAINT ON USING MINERAL CHEMISTRY OF AMPHIBOLE TO DETERMINE CHARACTERISTICS OF PARENTAL MAGMA. PETROLOGY, 9(34 ), 1-20. SID. https://sid.ir/paper/197037/en

Vancouver: Copy

SEDIGHIAN SOODEH, DARGAHI SARA, ARVIN MOHSEN, NAKASHIMA KAZUO. GEOTHERMOBAROMETRY OF KHUNRANG INTRUSIVE COMPLEX (NORTHWEST OF JIROFT, KERMAN PROVINCE): CONSTRAINT ON USING MINERAL CHEMISTRY OF AMPHIBOLE TO DETERMINE CHARACTERISTICS OF PARENTAL MAGMA. PETROLOGY[Internet]. 2018;9(34 ):1-20. Available from: https://sid.ir/paper/197037/en

IEEE: Copy

SOODEH SEDIGHIAN, SARA DARGAHI, MOHSEN ARVIN, and KAZUO NAKASHIMA, “GEOTHERMOBAROMETRY OF KHUNRANG INTRUSIVE COMPLEX (NORTHWEST OF JIROFT, KERMAN PROVINCE): CONSTRAINT ON USING MINERAL CHEMISTRY OF AMPHIBOLE TO DETERMINE CHARACTERISTICS OF PARENTAL MAGMA,” PETROLOGY, vol. 9, no. 34 , pp. 1–20, 2018, [Online]. Available: https://sid.ir/paper/197037/en

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