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Information Journal Paper

Title

DETERMINATION OF TECTONOMAGMATIC ENVIRONMENT OF VOLCANIC AND SUBVOLCANIC ROCKS IN NORTH OF SHAHREKORD BY AMPHIBOLES GEOTHERMOBAROMETRY

Pages

  267-278

Abstract

 On the basis of geothermobarometric calculations, AMPHIBOLEs in volcanic and subvolcanic rocks belong to Upper JURASSIC VOLCANISM of SANANDAJ-SIRJAN ZONE in north of Shahrekord. Using Hamarstrom, Schmidt, Johnson - Rutherford and Hollister methods, AMPHIBOLEs have crystallized about 635 to 715oc and 2.68 to 7.5 kbar at the depth about 17 to 25km. The result of calculations has moderate accuracy. The lower FET/ (Fet+Mg) ratio in AMPHIBOLEs is characteristic of calc-alkaline magma suites. Calculated temperatures, pressures and depths for AMPHIBOLEs is coincide with a subduction tectonical environment. The maximum depth of crystallization of AMPHIBOLEs is 25km and subduction angle is lower than 45 km on the basis of 35 km distance between this volcanic belt and main Zagros fault. Aliv measures of AMPHIBOLEs are higher than 1.5 that indicates an island arc suite. The presence of this old island arc had predicted in Zagros orogenic belt.

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    APA: Copy

    EMAMI, SEYED NAEIM, KHALILI, MAHMOUD, & NOGHREHEIAN, M.. (2009). DETERMINATION OF TECTONOMAGMATIC ENVIRONMENT OF VOLCANIC AND SUBVOLCANIC ROCKS IN NORTH OF SHAHREKORD BY AMPHIBOLES GEOTHERMOBAROMETRY. IRANIAN JOURNAL OF CRYSTALLOGRAPHY AND MINERALOGY, 17(2), 267-278. SID. https://sid.ir/paper/4279/en

    Vancouver: Copy

    EMAMI SEYED NAEIM, KHALILI MAHMOUD, NOGHREHEIAN M.. DETERMINATION OF TECTONOMAGMATIC ENVIRONMENT OF VOLCANIC AND SUBVOLCANIC ROCKS IN NORTH OF SHAHREKORD BY AMPHIBOLES GEOTHERMOBAROMETRY. IRANIAN JOURNAL OF CRYSTALLOGRAPHY AND MINERALOGY[Internet]. 2009;17(2):267-278. Available from: https://sid.ir/paper/4279/en

    IEEE: Copy

    SEYED NAEIM EMAMI, MAHMOUD KHALILI, and M. NOGHREHEIAN, “DETERMINATION OF TECTONOMAGMATIC ENVIRONMENT OF VOLCANIC AND SUBVOLCANIC ROCKS IN NORTH OF SHAHREKORD BY AMPHIBOLES GEOTHERMOBAROMETRY,” IRANIAN JOURNAL OF CRYSTALLOGRAPHY AND MINERALOGY, vol. 17, no. 2, pp. 267–278, 2009, [Online]. Available: https://sid.ir/paper/4279/en

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