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Landsat-8, Advanced Spaceborne Thermal Emission and Reflection Radiometer, and WorldView-3 Multispectral Satellite Imagery for Prospecting Copper-Gold Mineralization in the Northeastern Inglefield Mobile Belt (IMB), Northwest Greenland

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Title
Landsat-8, Advanced Spaceborne Thermal Emission and Reflection Radiometer, and WorldView-3 Multispectral Satellite Imagery for Prospecting Copper-Gold Mineralization in the Northeastern Inglefield Mobile Belt (IMB), Northwest Greenland
Other Titles
북서그린란드에 위치한 북동 잉글필드 모바일벨트(IMB)일대의 구리-금 광상 원격 탐사
Authors
BEIRANVANDPOURAMIN
Park, Tae-Yoon S.
Park, Yongcheol
Hong, Jong Kuk
Aidy M Muslim
Andreas Laufer
Laura Crispini
Biswajeet Pradhan
Basem Zoheir
Omeid Rahmani
Mazlan Hashim
Mohammad Shawkat Hossain
Keywords
ASTER; Copper-gold mineralization; High Arctic regions; Landsat-8; The Inglefield Mobile Belt (IMB); WorldView-3
Issue Date
2019
Citation
BEIRANVANDPOURAMIN, et al. 2019. "Landsat-8, Advanced Spaceborne Thermal Emission and Reflection Radiometer, and WorldView-3 Multispectral Satellite Imagery for Prospecting Copper-Gold Mineralization in the Northeastern Inglefield Mobile Belt (IMB), Northwest Greenland". REMOTE SENSING, 11(20): 2430-2468.
Abstract
Several regions in the High Arctic still lingered poorly explored for a variety of mineralization types because of harsh climate environments and remoteness. Inglefield Land is an ice-free region in northwest Greenland that contains copper-gold mineralization associated with hydrothermal alteration mineral assemblages. In this study, Landsat-8, ASTER and WorldView-3 multispectral remote sensing data were used for hydrothermal alteration mapping and mineral prospecting in the Inglefield Land at regional, local and district scales. Directed Principal Components analysis (DPCA) technique was applied to map iron oxide/hydroxide, Al/Fe-OH, Mg-Fe-OH minerals, silicification (Si-OH) and SiO2 mineral groups using specialized band ratios of the multispectral datasets. For extracting reference spectra directly from the Landsat-8, ASTER and WV-3 images to generate fraction images of end-member minerals, the Automated Spectral Hourglass (ASH) approach was implemented. Linear Spectral Unmixing (LSU) algorithm was thereafter used to produce mineral-map of fractional images. Furthermore, Adaptive Coherence Estimator (ACE) algorithm was applied to VINR+SWIR bands of ASTER using laboratory reflectance spectra extracted from the USGS spectral library for verifying the presence of mineral spectral signatures. Results indicate that the boundaries between the Franklinian sedimentary successions and the Etah metamorphic and meta-igneous complex, the orthogneiss in the northeastern part of the Cu-Au mineralization belt adjacent to Dallas Bugt and the southern part of the Cu-Au mineralization belt nearby Marshall Bugt show high content of iron oxides/hydroxides and Si-OH/SiO2 mineral groups, which warrant high potential for Cu-Au prospecting. A high spatial distribution of hematite/jarosite, chalcedony/opal and chlorite/epidote/biotite were identified with the documented Cu-Au occurrences in central and southwestern sectors of the Cu-Au mineralization belt. The calculation of confusion matrix and Kappa Coefficient proved appropriate overall accuracy and good rate of agreement for alteration mineral mapping. This investigation accomplished the application of multispectral/multi-sensor satellite imagery as a valuable and economical tool for reconnaissance stages of systematic mineral exploration projects in remote and inaccessible metallogenic provinces around the world, particularly in the High Arctic regions.
URI
http://repository.kopri.re.kr/handle/201206/10141
DOI
http://dx.doi.org/10.3390/rs11202430
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