GEOLOGY, ALTERATION, GEOCHEMISTRY AND FLUID INCLUSION OF AU MINERALIZATION IN THE NORTH BAZMAN

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OMIDVAR ESHKALAK M.R.; MOKHTARI A.A.

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Journal: GEOSCIENCES Year:2015 | Volume:24 | Issue:95 (PETROLOGY & MINERALOGY) Page(s): 165-180

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Information Journal Paper

Title

GEOLOGY, ALTERATION, GEOCHEMISTRY AND FLUID INCLUSION OF AU MINERALIZATION IN THE NORTH BAZMAN

Author(s)

OMIDVAR ESHKALAK M.R. | MOKHTARI A.A. | Issue Writer Certificate

Keywords

GOLD MINERALIZATIONQ2

BAZMANQ2

HYDROTHERMAL BRECCIAQ2

SILICA VEINSQ2

EPITHERMALQ2

Abstract

The studied area is located in the southeastern end of the Sahand- BAZMAN Magmatic Belt in the north of BAZMAN volcano. This area composed of Miocene volcanic rocks including andesitic to dacitic lavas along with tuffaceous sandstone, ignimbrite, agglomerate, tuff and siltstone that underwent propyilitic, argillic, sericitic, carbonatic and silicified alterations. Predominant form of the mineralization is SILICA VEINS and HYDROTHERMAL BRECCIA, which crop out within the alteration zones. The textures within the SILICA VEINS include coliform, vuggy, stratiform, banded and HYDROTHERMAL BRECCIAs. The results of sample analysis demonstrate that HYDROTHERMAL BRECCIAs have the highest grades of Au (up to 27.6 ppm), and the SILICA VEINS with banded texture and fine grained sulfide bearing SILICA VEINS are other important Au- bearing mineralization in the next orders. The geochemical investigations demonstrate good positive correlation between Au and Ag, Sb, As, Pb, Zn, Mo, Bi and Hg in the Au- bearing SILICA VEINS. The fluid inclusion studies on SILICA VEINS with banded texture indicate that the salinity of fluids is 1.22-7.77 W% NaCl, and homogenization temperature is 190-296oC. Based on the field evidences along with mineralogy, textures and structures of SILICA VEINS, geochemical and fluid inclusion investigations, the Au mineralization in the north of BAZMAN can be classified as low sulfidation EPITHERMAL gold deposits.

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APA: Copy

OMIDVAR ESHKALAK, M.R., & MOKHTARI, A.A.. (2015). GEOLOGY, ALTERATION, GEOCHEMISTRY AND FLUID INCLUSION OF AU MINERALIZATION IN THE NORTH BAZMAN. GEOSCIENCES, 24(95 (PETROLOGY & MINERALOGY)), 165-180. SID. https://sid.ir/paper/31756/en

Vancouver: Copy

OMIDVAR ESHKALAK M.R., MOKHTARI A.A.. GEOLOGY, ALTERATION, GEOCHEMISTRY AND FLUID INCLUSION OF AU MINERALIZATION IN THE NORTH BAZMAN. GEOSCIENCES[Internet]. 2015;24(95 (PETROLOGY & MINERALOGY)):165-180. Available from: https://sid.ir/paper/31756/en

IEEE: Copy

M.R. OMIDVAR ESHKALAK, and A.A. MOKHTARI, “GEOLOGY, ALTERATION, GEOCHEMISTRY AND FLUID INCLUSION OF AU MINERALIZATION IN THE NORTH BAZMAN,” GEOSCIENCES, vol. 24, no. 95 (PETROLOGY & MINERALOGY), pp. 165–180, 2015, [Online]. Available: https://sid.ir/paper/31756/en

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