GEOCHEMISTRY, FLUID INCLUSION STUDIES AND ORIGIN OF ILEH IRON DEPOSIT, SW OF TAIBAD (KHORASAN RAZAVI)

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KARIMI SIAMAK; BEHZADI MEHRDAD; RASA IRAJ; GHAZVINIZADEH AMIR MASOUD

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Journal: PETROLOGY Year:2013 | Volume:3 | Issue:12 Page(s): 33-49

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Information Journal Paper

Title

GEOCHEMISTRY, FLUID INCLUSION STUDIES AND ORIGIN OF ILEH IRON DEPOSIT, SW OF TAIBAD (KHORASAN RAZAVI)

Author(s)

KARIMI SIAMAK | BEHZADI MEHRDAD | RASA IRAJ | GHAZVINIZADEH AMIR MASOUD | Issue Writer Certificate

Keywords

HEMATITEQ2

ILEHQ2

ALTERATIONQ2

FLUID MIXINGQ2

FLUID INCLUSIONQ2

Abstract

The IIeh Iron ore deposit is located about 250 km SE of Mashhad and 49 km SW of Taibad (Khorasan Razavi province). The oldest exposed rock unit belong to late Proterozoic and are meta volcano-sedimentary complexes with metamorphic grade of green schist facies. The other outcrops are granites with Upper Eocene age which cut the complex. The granitic bodies are calc-alkaline, high-K, peraluminous to meta aluminous, and characterized by negative Eu anomaly, the magnetite- series (I-Type) granites, are related to continental- margin subduction zones with the lower crust source. The homogenization temperatures (Th) obtained from FLUID INCLUSIONs in calcite and quartz ranges from 200-385oC with mode of 300-320oC. Two salinity ranges of 4-6 and 28-38 NaCl eq. Wt% are observed in quartz and calcite, respectively, implying an possible fluid-mixing event. The occurrence of HEMATITE could be taken as evidence for extremely oxidizing conditions and the possible derivation from a magmatic source during the trapping event. Based on XRD and thin- section studies, the altered rocks around ore deposits show sericitization, chloritization, illitization, kaolinitization, silicification and montmorillonitization are the main ALTERATION types. This study suggestsa K-Fe-Mg-Si-Ca composition for the ore-bearing fluids. Further proof for the hydrothermal-origin of the ore-bearing fluids is indicated by the positive Eu anomaly in the respected REE abundance pattern of ore samples.

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APA: Copy

KARIMI, SIAMAK, BEHZADI, MEHRDAD, RASA, IRAJ, & GHAZVINIZADEH, AMIR MASOUD. (2013). GEOCHEMISTRY, FLUID INCLUSION STUDIES AND ORIGIN OF ILEH IRON DEPOSIT, SW OF TAIBAD (KHORASAN RAZAVI). PETROLOGY, 3(12), 33-49. SID. https://sid.ir/paper/197045/en

Vancouver: Copy

KARIMI SIAMAK, BEHZADI MEHRDAD, RASA IRAJ, GHAZVINIZADEH AMIR MASOUD. GEOCHEMISTRY, FLUID INCLUSION STUDIES AND ORIGIN OF ILEH IRON DEPOSIT, SW OF TAIBAD (KHORASAN RAZAVI). PETROLOGY[Internet]. 2013;3(12):33-49. Available from: https://sid.ir/paper/197045/en

IEEE: Copy

SIAMAK KARIMI, MEHRDAD BEHZADI, IRAJ RASA, and AMIR MASOUD GHAZVINIZADEH, “GEOCHEMISTRY, FLUID INCLUSION STUDIES AND ORIGIN OF ILEH IRON DEPOSIT, SW OF TAIBAD (KHORASAN RAZAVI),” PETROLOGY, vol. 3, no. 12, pp. 33–49, 2013, [Online]. Available: https://sid.ir/paper/197045/en

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