DETERMINATION OF MINERAL CHEMISTRY, THERMOBAROMETRY AND EMPLACEMENT DEPTH OF GRANITIOD MAGMAS IN NOWCHON, RAFSANJAN, KERMAN

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MORTAZAVI M.; SHEIKH ZAKARIAEE S.J.; GHAFFARI FAKHER M.

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Journal: JOURNAL OF SCIENCES (ISLAMIC AZAD UNIVERSITY) Year:2011 | Volume:21 | Issue:81 (GEOLOGY ISSUE) Page(s): 79-94

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Title

DETERMINATION OF MINERAL CHEMISTRY, THERMOBAROMETRY AND EMPLACEMENT DEPTH OF GRANITIOD MAGMAS IN NOWCHON, RAFSANJAN, KERMAN

Author(s)

MORTAZAVI M. | SHEIKH ZAKARIAEE S.J. | GHAFFARI FAKHER M. | Issue Writer Certificate

Keywords

MINERAL CHEMISTRYQ2

THERMOBAROMETRYQ2

EMPLACEMENT DEPTHQ2

NOWCHONQ2

KERMANQ2

Abstract

Introduction: Nowcon area located in the south-east of Iran, in KERMAN province and 65Km of south of Rafsanjan in mountain area of pariz district and in 5Km of sar-Cheshmeh cooper mine. Under studied area situated Central Iran zone. The most magmatic events in area are intrusion of multiple plutons that have different compositions abd injected in volcanic rocks. Major parts of intrusions are granodiorite to monzogranite and monzodiorite.Aim: first, Determination of precision mineral chemical composition such as amphibole, biotite, alkali feldspar and plagioclase exist in granodioritic and monzodioritic bodies and then THERMOBAROMETRY by mentioned minerals that can offer useful information about EMPLACEMENT DEPTH of plutons.Methods: For the performing of THERMOBAROMETRY operations, some minerals (as previous mentioned) by analyzed electron microprobe analysis and then by using specific diagrams related to minerals, determined THERMOBAROMETRY and EMPLACEMENT DEPTH of plutons.Results: based on obtained results, Plagioclases in granodiorits are labradorite-bytownite and monzodiorite are bytownite and rarely labradorite. Alkali feldspars in granodiorites and monzodiorites on the triangle diagram Or-Ab-An plotted 81-84% or and 57-87% or respectively. Granodiorites and monzodiorites’s Amphiboles in the located in calcic portion and are magnezio-hornblend and hornblend-actonilite respectively. Also biotites in ASPE diagram plotted in biotite section.Conclusion: Existence calcic amphiboles and primary magmatic biotites remark relation these rocks with I-Type granitiods, that generated by orogenic phase. THERMOBAROMETRY by using Plagioclase-hornblend show resulted average temperatures by different manners (670-780oC) and average domain pressure on intrusion bodies during emplacement are estimated ~1.2Kbar. Based on, density of average rocks of crust represent that emplacement intrusions performed in ~4.5Km depth of crust.

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APA: Copy

MORTAZAVI, M., SHEIKH ZAKARIAEE, S.J., & GHAFFARI FAKHER, M.. (2011). DETERMINATION OF MINERAL CHEMISTRY, THERMOBAROMETRY AND EMPLACEMENT DEPTH OF GRANITIOD MAGMAS IN NOWCHON, RAFSANJAN, KERMAN. JOURNAL OF SCIENCES (ISLAMIC AZAD UNIVERSITY), 21(81 (GEOLOGY ISSUE)), 79-94. SID. https://sid.ir/paper/70256/en

Vancouver: Copy

MORTAZAVI M., SHEIKH ZAKARIAEE S.J., GHAFFARI FAKHER M.. DETERMINATION OF MINERAL CHEMISTRY, THERMOBAROMETRY AND EMPLACEMENT DEPTH OF GRANITIOD MAGMAS IN NOWCHON, RAFSANJAN, KERMAN. JOURNAL OF SCIENCES (ISLAMIC AZAD UNIVERSITY)[Internet]. 2011;21(81 (GEOLOGY ISSUE)):79-94. Available from: https://sid.ir/paper/70256/en

IEEE: Copy

M. MORTAZAVI, S.J. SHEIKH ZAKARIAEE, and M. GHAFFARI FAKHER, “DETERMINATION OF MINERAL CHEMISTRY, THERMOBAROMETRY AND EMPLACEMENT DEPTH OF GRANITIOD MAGMAS IN NOWCHON, RAFSANJAN, KERMAN,” JOURNAL OF SCIENCES (ISLAMIC AZAD UNIVERSITY), vol. 21, no. 81 (GEOLOGY ISSUE), pp. 79–94, 2011, [Online]. Available: https://sid.ir/paper/70256/en

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