Extraction of linear structure and alteration information based on remote sensing image and ore-prospecting prognosis for Dongwu Banner, Inner Mongolia

doi:10.6046/gtzyyg.2013.03.19

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Abstract

Using ETM⁺ remote sensing data as the basic information sources,the authors carried out remote-sensing geological prospecting in Pb-Zn-Ag polymetallic ore zones of Dongwu Banner,Inner Mongolia. Remote sensing image was processed by geometric correction,atmospheric correction and the noise removal technology. Image filtering was conducted so as to enhance tectonic information and explain linear structure. The fractal dimension values were calculated by the method of fractal geometry and the box-counting dimension. As a result, the linear structures showed excellent statistical self-similarity and fractal characteristics in the study area. Principal component analysis and threshold segmentation were used to enhance the spectrum and space information and extract the iron-stained and hydroxy alteration information. Through comprehensively analyzing the linear structure,remote sensing alteration information,rock mass distribution characteristics,regional geochemical information and known deposits,seven metallogenic prospective areas at three levels were delineated.

Keywords regional evapotranspiration RUE DSSAT remote sensing biomass

TP 79

Issue Date: 03 July 2013

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	SU Tao
	FENG Shaoyuan
	XU Ying

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SU Tao,FENG Shaoyuan,XU Ying. Extraction of linear structure and alteration information based on remote sensing image and ore-prospecting prognosis for Dongwu Banner, Inner Mongolia[J]. REMOTE SENSING FOR LAND & RESOURCES, 2013, 25(3): 109-117.

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https://www.gtzyyg.com/EN/10.6046/gtzyyg.2013.03.19 OR https://www.gtzyyg.com/EN/Y2013/V25/I3/109

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