NDLI: Per-pixel and sub-pixel mapping of alteration minerals associated with geothermal systems using ASTER SWIR data

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Per-pixel and sub-pixel mapping of alteration minerals associated with geothermal systems using ASTER SWIR data

Content Provider	Scilit
Author	Abubakar, Aliyu Ja’Afar Hashim, Mazlan Pour, Amin Beiranvand Musa, Sulaiman Ibrahim Amusuk, Danboyi Joseph
Copyright Year	2018
Description	Journal: Iop Conference Series: Earth and Environmental Science This paper is focused on assessing the applicability of the Advanced Space-borne Thermal Emission and Reflection Radiometer (ASTER) shortwave infrared data in proxy mapping of subtle geothermal (GT) systems by identifying hydrothermally altered indicator minerals. The study was carried out at Yankari Park NE Nigeria. Spectral mapping is applied on ASTER data using perpixel and subpixel algorithms to extract and discriminate associated altered areas of interest. Field checks and altered rock sampling was done using GPS around the Wikki and Mawulgo thermal springs to validate results. Sampling points were used as training sites for image spectral analysis. X-Ray Diffraction results shows presence of kaolinite, quartz, hematite and dickite. This investigation demonstrates the utility of alteration mapping as a tool for GT resource exploration in uncharted regions.
Related Links	http://iopscience.iop.org/article/10.1088/1755-1315/169/1/012086/pdf
ISSN	17551307
e-ISSN	17551315
DOI	10.1088/1755-1315/169/1/012086
Journal	Iop Conference Series: Earth and Environmental Science
Issue Number	1
Volume Number	169
Language	English
Publisher	IOP Publishing
Publisher Date	2018-07-31
Access Restriction	Open
Subject Keyword	Journal: Iop Conference Series: Earth and Environmental Science Remote Sensing Mapping of Alteration
Content Type	Text
Resource Type	Article
Subject	Earth and Planetary Sciences Physics and Astronomy Environmental Science

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