THE INVESTIGATION OF ALTERATION ZONES AND MAGMA MIXING IN EXPLORATION KAHANG AREA

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FARMAHINI FARAHANI M.; KHAKZAD A.; ASADI HAROONI H.; EMAMI M.H.

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Journal: GEOSCIENCES Year:2014 | Volume:24 | Issue:93 Page(s): 183-194

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Title

THE INVESTIGATION OF ALTERATION ZONES AND MAGMA MIXING IN EXPLORATION KAHANG AREA

Author(s)

FARMAHINI FARAHANI M. | KHAKZAD A. | ASADI HAROONI H. | EMAMI M.H. | Issue Writer Certificate

Keywords

ALTERATIONQ2

PHYLLICQ2

ARGILICQ2

PROPYLITICQ1

SILISIFICATIONQ2

HYDROTHERMAL FLUIDQ2

MAGMA MIXINGQ2

SIEVE TEXTUREQ2

PORPHYRYQ2

REMOTE SENSINGQ2

Abstract

Kahang copper and molybdenum mine is located in Esfahan province and 10 Km far from the east of Zefreh town that is on Urumieh-Dokhtar volcanoplutonic belt. The Kahang region is an ALTERATION and breccia zone. Generally, HYDROTHERMAL FLUIDs have affected more than % 90 of rocks of this region. These ALTERATION are related to Copper (Cu) and Molybdenum (Mo) PORPHYRY deposits. Most of the rocks are acidic, semi acidic and sub volcanic. Several kinds of ALTERATION are observable in kahang as PROPYLITIC, ARGILIC, SILISIFICATION and PHYLLIC. The basic oxides were highly decreased in dacite and rhyodacites of exploration area. This is an evidence of ARGILIC ALTERATION effect on the rock units considering that main deposit is not affected by erosion, placed in depth and potassic ALTERATION is not exposed at surface. In study of existing ALTERATION several methods such as REMOTE SENSING, studying of thin section and the chemical analysis of samples were used. Another issue that has taken into consideration in this paper is the MAGMA MIXING. This subject is confirmed by petrographic evidence such as SIEVE TEXTURE, corroded rims in primary phenocryst quartz, and hydrothermal effects on plagioclases especially in porphyritic andesites. Moreover, the extensive acidic rocks, notable ALTERATION expanse, and also two generations of mineralization reveal assimilation in the studied area. This text has examined the similarities between Kahang and other porphyries in the Urumieh-Dokhtar zone.

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APA: Copy

FARMAHINI FARAHANI, M., KHAKZAD, A., ASADI HAROONI, H., & EMAMI, M.H.. (2014). THE INVESTIGATION OF ALTERATION ZONES AND MAGMA MIXING IN EXPLORATION KAHANG AREA. GEOSCIENCES, 24(93), 183-194. SID. https://sid.ir/paper/32072/en

Vancouver: Copy

FARMAHINI FARAHANI M., KHAKZAD A., ASADI HAROONI H., EMAMI M.H.. THE INVESTIGATION OF ALTERATION ZONES AND MAGMA MIXING IN EXPLORATION KAHANG AREA. GEOSCIENCES[Internet]. 2014;24(93):183-194. Available from: https://sid.ir/paper/32072/en

IEEE: Copy

M. FARMAHINI FARAHANI, A. KHAKZAD, H. ASADI HAROONI, and M.H. EMAMI, “THE INVESTIGATION OF ALTERATION ZONES AND MAGMA MIXING IN EXPLORATION KAHANG AREA,” GEOSCIENCES, vol. 24, no. 93, pp. 183–194, 2014, [Online]. Available: https://sid.ir/paper/32072/en

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