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Earth Observing-1 (E01) remote sensing data for porphyry copper and epithermal gold exploration

This study evaluates the capability of Earth Observing-1 (E01) Advanced Land Imager (ALI) and Hyperion data for lithological and hydrothermal alteration mapping. Several image processing methods have b~en tested on two ALI and Hyperion images covering the Meiduk and Sar Cheshmeh porphyry copper mini...

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Main Authors: Pour, Amin Beiranvand, Hashim, Mazlan
Format: Conference or Workshop Item
Published: 2015
Subjects:
G Geography (General)
Online Access:http://eprints.utm.my/id/eprint/63472/
https://eventegg.com/wmess-2015/
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spelling my.utm.634722017-05-30T04:47:51Z http://eprints.utm.my/id/eprint/63472/ Earth Observing-1 (E01) remote sensing data for porphyry copper and epithermal gold exploration Pour, Amin Beiranvand Hashim, Mazlan G Geography (General) This study evaluates the capability of Earth Observing-1 (E01) Advanced Land Imager (ALI) and Hyperion data for lithological and hydrothermal alteration mapping. Several image processing methods have b~en tested on two ALI and Hyperion images covering the Meiduk and Sar Cheshmeh porphyry copper mining districts, SE Iran for regional and district scales mapping. Feature-oriented principal components selection, different band ratioing and Minimum Noise Fraction were applied for enhancing the hydrothermally altered rocks associated with porphyry copper mineralization, lithological units and vegetation using ALI data at regional scale. Spectral angle mapper, linear spectral unmixing and mixture-tuned matched-filtering were tested to discriminate the hydrothermal alteration areas of porphyry copper mineralization from surrounding environment using shortwave infrared bands of ALI at regional scale. Analytical imaging and geophysics (AIG)developed hyperspectral analysis processing methods were applied to visible and near infrared and shortwave infrared bands of Hyperion for mapping iron oxide/hydroxide minerals and clay mineral assemblages in hydrothermal alteration zones at district scale. Results indicated that the tested methods are able to yield spectral information for identifying vegetation, iron oxide/hydroxide and clay minerals, lithological units and discrimination of hydrothermally altered rocks from unaltered rocks using ALI data at regional scale. Supergene altered areas consisting of iron oxide/hydroxide minerals such as hematite, limonite, jarosite and goethite were detected using visible and near infrared bands of Hyperion. Phyllic, advanced argillic and propylitic alteration zones associated with porphyry copper mineralization were discriminated based on the identified alteration minerals such as sericite, kaolinite, illite, alunite, chlorite, epidote and calcite using shortwave infrared bands of Hyperion. It is shown that the integration of the ALI and Hyperion data can yield significant information to identify lithological units and hydrothermally altered rocks associated with porphyry copper and epithermal gold mineralization at both regional and district scales. The achievements of this investigation indicate considerable implications for geologists to use Earth Observing-1 (EO-1) data for geological purposes. 2015 Conference or Workshop Item PeerReviewed Pour, Amin Beiranvand and Hashim, Mazlan (2015) Earth Observing-1 (E01) remote sensing data for porphyry copper and epithermal gold exploration. In: World Multidisciplinary Earth Sciences Symposium, 7-11 Sept, 2015, Prague, Czech Republic. https://eventegg.com/wmess-2015/
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
topic G Geography (General)
spellingShingle G Geography (General)
Pour, Amin Beiranvand
Hashim, Mazlan
Earth Observing-1 (E01) remote sensing data for porphyry copper and epithermal gold exploration
description This study evaluates the capability of Earth Observing-1 (E01) Advanced Land Imager (ALI) and Hyperion data for lithological and hydrothermal alteration mapping. Several image processing methods have b~en tested on two ALI and Hyperion images covering the Meiduk and Sar Cheshmeh porphyry copper mining districts, SE Iran for regional and district scales mapping. Feature-oriented principal components selection, different band ratioing and Minimum Noise Fraction were applied for enhancing the hydrothermally altered rocks associated with porphyry copper mineralization, lithological units and vegetation using ALI data at regional scale. Spectral angle mapper, linear spectral unmixing and mixture-tuned matched-filtering were tested to discriminate the hydrothermal alteration areas of porphyry copper mineralization from surrounding environment using shortwave infrared bands of ALI at regional scale. Analytical imaging and geophysics (AIG)developed hyperspectral analysis processing methods were applied to visible and near infrared and shortwave infrared bands of Hyperion for mapping iron oxide/hydroxide minerals and clay mineral assemblages in hydrothermal alteration zones at district scale. Results indicated that the tested methods are able to yield spectral information for identifying vegetation, iron oxide/hydroxide and clay minerals, lithological units and discrimination of hydrothermally altered rocks from unaltered rocks using ALI data at regional scale. Supergene altered areas consisting of iron oxide/hydroxide minerals such as hematite, limonite, jarosite and goethite were detected using visible and near infrared bands of Hyperion. Phyllic, advanced argillic and propylitic alteration zones associated with porphyry copper mineralization were discriminated based on the identified alteration minerals such as sericite, kaolinite, illite, alunite, chlorite, epidote and calcite using shortwave infrared bands of Hyperion. It is shown that the integration of the ALI and Hyperion data can yield significant information to identify lithological units and hydrothermally altered rocks associated with porphyry copper and epithermal gold mineralization at both regional and district scales. The achievements of this investigation indicate considerable implications for geologists to use Earth Observing-1 (EO-1) data for geological purposes.
format Conference or Workshop Item
author Pour, Amin Beiranvand
Hashim, Mazlan
author_facet Pour, Amin Beiranvand
Hashim, Mazlan
author_sort Pour, Amin Beiranvand
title Earth Observing-1 (E01) remote sensing data for porphyry copper and epithermal gold exploration
title_short Earth Observing-1 (E01) remote sensing data for porphyry copper and epithermal gold exploration
title_full Earth Observing-1 (E01) remote sensing data for porphyry copper and epithermal gold exploration
title_fullStr Earth Observing-1 (E01) remote sensing data for porphyry copper and epithermal gold exploration
title_full_unstemmed Earth Observing-1 (E01) remote sensing data for porphyry copper and epithermal gold exploration
title_sort earth observing-1 (e01) remote sensing data for porphyry copper and epithermal gold exploration
publishDate 2015
url http://eprints.utm.my/id/eprint/63472/
https://eventegg.com/wmess-2015/
_version_ 1643655725611745280
score 13.211869

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