MINERAL CHEMISTRY AND GEOTHERMOMETRY OF QUATERNARY OLIVINE BASALTS OF SIRIZ, NORTHWEST OF ZARAND

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AMIRI ALI; SOLTANINEJAD TOORAJ; KIYANIYAN MEHDI; SHAKER ARDAKANI ALIREZA

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Journal: GEOCHEMISTRY Year:2012 | Volume:1 | Issue:2 Page(s): 83-90

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Information Journal Paper

Title

MINERAL CHEMISTRY AND GEOTHERMOMETRY OF QUATERNARY OLIVINE BASALTS OF SIRIZ, NORTHWEST OF ZARAND

Author(s)

AMIRI ALI | SOLTANINEJAD TOORAJ | KIYANIYAN MEHDI | SHAKER ARDAKANI ALIREZA | Issue Writer Certificate

Keywords

OLIVINE BASALTQ2

MINERAL CHEMISTRYQ2

ELECTRON MICROPROBE ANALYSISQ2

GEOTHERMOMETRYQ2

SIRIZQ2

CENTRAL IRANQ2

Abstract

The Quaternary basaltic rocks of north SIRIZ, located in the northwest of Zarand, are part of the volcanic rocks of CENTRAL IRAN structural zone. Mineralogically, they consist of olivine, clinopyroxene and plagioclase phenocrysts and porphyritic is the main texture. Furthermore, they are characterized by microlitic-porphyritic, gelomero porphyritic, trachytic, intergranular, intersertal and amygdaloidal textures. Based on the electron probe microanalysis (EPMA), the olivine, clinopyroxene and plagio-clase phenocrysts are chrysolite, augite and anorthite in composition, respectively. Also, changes of chemical composition of magma are insignificant during crystallization of the phenocrysts, as MgO contents of olivine phenocrysts are slightly decreased from core to the rim. However, TiO2, and MgO and SiO2 contents of clinopyroxene phenocrysts show increasing and decreasing trends toward the rim, respectively. Based on thermometric studies, the temperatures between 1212 to 1283oC are estimated for the formation of clinopyroxene crystals.

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References

PETROLOGY OF QUATERNARY BASALTS OF TABAS (EAST OF IRAN)

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APA: Copy

AMIRI, ALI, SOLTANINEJAD, TOORAJ, KIYANIYAN, MEHDI, & SHAKER ARDAKANI, ALIREZA. (2012). MINERAL CHEMISTRY AND GEOTHERMOMETRY OF QUATERNARY OLIVINE BASALTS OF SIRIZ, NORTHWEST OF ZARAND. GEOCHEMISTRY, 1(2), 83-90. SID. https://sid.ir/paper/230895/en

Vancouver: Copy

AMIRI ALI, SOLTANINEJAD TOORAJ, KIYANIYAN MEHDI, SHAKER ARDAKANI ALIREZA. MINERAL CHEMISTRY AND GEOTHERMOMETRY OF QUATERNARY OLIVINE BASALTS OF SIRIZ, NORTHWEST OF ZARAND. GEOCHEMISTRY[Internet]. 2012;1(2):83-90. Available from: https://sid.ir/paper/230895/en

IEEE: Copy

ALI AMIRI, TOORAJ SOLTANINEJAD, MEHDI KIYANIYAN, and ALIREZA SHAKER ARDAKANI, “MINERAL CHEMISTRY AND GEOTHERMOMETRY OF QUATERNARY OLIVINE BASALTS OF SIRIZ, NORTHWEST OF ZARAND,” GEOCHEMISTRY, vol. 1, no. 2, pp. 83–90, 2012, [Online]. Available: https://sid.ir/paper/230895/en

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