Satellite Image Processing: Application for Alteration Separation based on U-Statistic Method in Zafarghand Porphyry System (Iran)
Publish place: Journal of Mining and Environment، Vol: 15، Issue: 2
Publish Year: 1403
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_JMAE-15-2_016
تاریخ نمایه سازی: 8 بهمن 1402
Abstract:
The Zafarghand area (as a porphyry Cu deposit) is located in the northeast of Isfahan and southeast of Ardestan, which is a part of the Iran-Central structural zone, and more precisely, it is located in the Urmia-Dokhtar volcanic belt. In the porphyry Cu deposits exploration, identifying and determining the alteration zones is of special importance. The aim of the present study is to identify and highlight the alteration zones of Zafarghand area, with the help of the U-statistic method in the processing of ASTER sensor satellite images. Accordingly, considering the raster nature and digital form of satellite images, the digital number values of each pixel from the image matrices were considered as samples in a systematic network. Finally, the U spatial statistic algorithm was implemented as a moving window algorithm for determining anomaly samples in the set of digital number (DN) values of ASTER satellite image pixels. The results of this technique show that the application of the U-statistic method, considering its structural nature and neighboring samples in decision-making, has been successful and has proven to be very effective in determining the alteration zones in the Zafarghand area.
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Authors
Seyyed Saeed Ghannadpour
Department of Mining Engineering, Amirkabir University of Technology, Tehran, Iran
Morteza Hasiri
Department of Mining Engineering, Amirkabir University of Technology, Tehran, Iran
Hadi Jalili
Ph.D, Iranian Space Research Center, Tehran, Iran
Somayeh Talebiesfandarani
Ph.D, Iranian Space Research Center, Tehran, Iran
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