GEOCHEMISTRY OF HYDROTHERMAL ALTERATIONS ASSOCIATED WITH EPITHERMAL GOLD MINERALIZATION IN MASJEDDAGHI AREA, EAST OF JOLFA, NW IRAN

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IMAMALIPOUR A.; ABDOLI H.; HAJALILO B.

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Journal Paper

Paper Information

Journal: JOURNAL OF ECONOMIC GEOLOGY Year:2011 | Volume:2 | Issue:2 Page(s): 199-215

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Title

GEOCHEMISTRY OF HYDROTHERMAL ALTERATIONS ASSOCIATED WITH EPITHERMAL GOLD MINERALIZATION IN MASJEDDAGHI AREA, EAST OF JOLFA, NW IRAN

Author(s)

IMAMALIPOUR A. | ABDOLI H. | HAJALILO B. | Issue Writer Certificate

Keywords

GEOCHEMISTRYQ2

ALTERATIONQ2

EPITHERMALQ2

MASS CHANGESQ2

MASJEDDAGHIQ2

JOLFAQ2

Abstract

Two types of mineralization including porphyry copper and EPITHERMAL gold mineralization have occurred in relation with an intermediate volcano-plutonic complex in MASJEDDAGHI area. Different ALTERATIONs including silica, advanced argillic, intermediate argillic and propylitic have been distinguished in relation with EPITHERMAL mineralization, which have a zonal pattern. Elemental mass gains and losses during ALTERATIONs were calculated using Zr as an immobile monitor. Silica zone has enriched in SiO2 and relatively in Al2O3 and K2O, and has depleted in Na2O, MgO and CaO. Ba, Sr, Pb, Rb and Cu elements have also enriched. The advanced argillic zone shows enrichment in SO3, Al2O3, SiO2, K2O, MgO and L.O.I, and depletion in Fe2O3, CaO, Na2O, MnO and MgO. Barium, Cu, Sr and Zn have depleted in this zone. Propylitic zone has enriched in MgO, CaO, L.O.I and SiO2, and has depleted in Na2O and K2O. Geochemical and mineralogical evidences indicate that the hydrothermal leaching of mafic minerals in parent rocks and formation of quartz, kaolinite, sericite and alunite assemblage in advanced argillic zone, and chlorite, epidote and calcite assemblage in propylitic zone is responsible for the above mentioned chemical variations. It is likely that the gains and losses of elements have been controlled by agents such as water/rock ratios, temperature changes and chemistry of hydrothermal solutions. The CIA and MIA indicators in the altered rocks indicate the intensity of ALTERATION in silica and advanced argillic zones in comparison with propylitic zone.

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References

تغییرات جرمی عناصر طی دگرسانیهای گرمابی مرتبط با کانی سازی اپی ترمالی طلا در ناحیه مسجد داغی، شرق جلفا (همایش)

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APA: Copy

IMAMALIPOUR, A., ABDOLI, H., & HAJALILO, B.. (2011). GEOCHEMISTRY OF HYDROTHERMAL ALTERATIONS ASSOCIATED WITH EPITHERMAL GOLD MINERALIZATION IN MASJEDDAGHI AREA, EAST OF JOLFA, NW IRAN. JOURNAL OF ECONOMIC GEOLOGY, 2(2), 199-215. SID. https://sid.ir/paper/180478/en

Vancouver: Copy

IMAMALIPOUR A., ABDOLI H., HAJALILO B.. GEOCHEMISTRY OF HYDROTHERMAL ALTERATIONS ASSOCIATED WITH EPITHERMAL GOLD MINERALIZATION IN MASJEDDAGHI AREA, EAST OF JOLFA, NW IRAN. JOURNAL OF ECONOMIC GEOLOGY[Internet]. 2011;2(2):199-215. Available from: https://sid.ir/paper/180478/en

IEEE: Copy

A. IMAMALIPOUR, H. ABDOLI, and B. HAJALILO, “GEOCHEMISTRY OF HYDROTHERMAL ALTERATIONS ASSOCIATED WITH EPITHERMAL GOLD MINERALIZATION IN MASJEDDAGHI AREA, EAST OF JOLFA, NW IRAN,” JOURNAL OF ECONOMIC GEOLOGY, vol. 2, no. 2, pp. 199–215, 2011, [Online]. Available: https://sid.ir/paper/180478/en

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