APPLICATION OF ETM+ IMAGE IN DETECTING ALTERATION HALOS AND DISCRIMINATING LITHOLOGICAL UNITS IN MIANEH (EAST- AZARBAYJAN)

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MOHAMMADZADEH M.J.; FALAHAT R.

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Journal: Iranian Journal of Crystallography and Mineralogy Year:2008 | Volume:15 | Issue:2 Page(s): 439-452

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Information Journal Paper

Title

APPLICATION OF ETM+ IMAGE IN DETECTING ALTERATION HALOS AND DISCRIMINATING LITHOLOGICAL UNITS IN MIANEH (EAST- AZARBAYJAN)

Author(s)

MOHAMMADZADEH M.J. | FALAHAT R. | Issue Writer Certificate

Keywords

LANDSAT-7(ETM+) IMAGEQ3

MINERAL SPECTRAL PATTERNQ3

HYDROTHERMAL ALTERATIONQ3

LITHOLOGICAL UNITS DISCRIMINATIONQ3

MIANEH REGIONQ3

Abstract

The alkaline and calc-alkaline volcanic activities in Mianeh have reactivated the hydrothermal solutions, resulting in the formation of epithermal mineralization in the region. The mineralized zone trending NWSE, and has been affected by NE-SW bended and folded structures. The precious and base metals mineralization are confined to structurally bended zone. Landsat-7(ETM+) data were used to study the alteration zones, structural features and to discriminate the lithological units in the region. The primary corrections were carried out on the images and the data resampled to ISm. Based on spectral pattern of minerals present in the alteration system, such as chlorite, epidote, kaolinite, jarosite, geotite, HYDROTHERMAL ALTERATION zones of the area were detected using band ratio and principle component analysis (PCA) techniques, which also well correlated with field studies. The linear and ring structural features along with lithological units were discriminated based on spectral features of minerals. Ultimately, the study reveals that the application of PCA resulted in enhancement of alteration halos. The field checks have confirmed the achievement and indicate the western part of the area as potentially promising zone.

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References

ANALYSIS AND INTEGRATION OF AIRBORNE DATA AND THEIR CORRELATION WITH ETM IMAGE FOR DETECTING ALTERATION ZONES IN MIANEH (EAST-AZARBAIJAN)

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APA: Copy

MOHAMMADZADEH, M.J., & FALAHAT, R.. (2008). APPLICATION OF ETM⁺ IMAGE IN DETECTING ALTERATION HALOS AND DISCRIMINATING LITHOLOGICAL UNITS IN MIANEH (EAST- AZARBAYJAN). IRANIAN JOURNAL OF CRYSTALLOGRAPHY AND MINERALOGY, 15(2), 439-452. SID. https://sid.ir/paper/3991/en

Vancouver: Copy

MOHAMMADZADEH M.J., FALAHAT R.. APPLICATION OF ETM⁺ IMAGE IN DETECTING ALTERATION HALOS AND DISCRIMINATING LITHOLOGICAL UNITS IN MIANEH (EAST- AZARBAYJAN). IRANIAN JOURNAL OF CRYSTALLOGRAPHY AND MINERALOGY[Internet]. 2008;15(2):439-452. Available from: https://sid.ir/paper/3991/en

IEEE: Copy

M.J. MOHAMMADZADEH, and R. FALAHAT, “APPLICATION OF ETM⁺ IMAGE IN DETECTING ALTERATION HALOS AND DISCRIMINATING LITHOLOGICAL UNITS IN MIANEH (EAST- AZARBAYJAN),” IRANIAN JOURNAL OF CRYSTALLOGRAPHY AND MINERALOGY, vol. 15, no. 2, pp. 439–452, 2008, [Online]. Available: https://sid.ir/paper/3991/en

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