Nonphotographic Imaging from Aircraft and Space-borne Platforms

Kühn, Friedrich; Hörig, Bernhard; Schmidt, Dietmar; Bucher, Tllmann

doi:10.1007/978-3-540-74671-3_5

Environmental Geology 2007

DOI: 10.1007/978-3-540-74671-3_5

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Nonphotographic Imaging from Aircraft and Space-borne Platforms

Friedrich Kühn

Bernhard Hörig

Dietmar Schmidt

et al.

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2012

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Integrated data analysis for mineral exploration: A case study of clustering satellite imagery, airborne gamma-ray, and regional geochemical data suites

Eberle

Paasche

2012

GEOPHYSICS

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Partitioning cluster algorithms have proven to be powerful tools for data-driven integration of large geoscientific databases. We used fuzzy Gustafson-Kessel cluster analysis to integrate Landsat imagery, airborne radiometric, and regional geochemical data to aid in the interpretation of a multimethod database. The survey area extends over [Formula: see text] and is located in the Northern Cape Province, South Africa. We carefully selected five variables for cluster analysis to avoid the clustering results being dominated by spatially high-correlated data sets that were present in our database. Unlike other, more popular cluster algorithms, such as k-means or fuzzy c-means, the Gustafson-Kessel algorithm requires no preclustering data processing, such as scaling or adjustment of histographic data distributions. The outcome of cluster analysis was a classified map that delineates prominent near-to-surface structures. To add value to the classified map, we compared the detected structures to mapped geology and additional geophysical ground-truthing data. We were able to associate the structures detected by cluster analysis to geophysical and geological information thus obtaining a pseudolithology map. The latter outlined an area with increased mineral potential where manganese mineralization, i.e., psilomelane, had been located.

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Integrated data analysis for mineral exploration: A case study of clustering satellite imagery, airborne gamma-ray, and regional geochemical data suites

Eberle

Paasche

2012

GEOPHYSICS

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Nonphotographic Imaging from Aircraft and Space-borne Platforms

Cited by 1 publication

References 37 publications

Integrated data analysis for mineral exploration: A case study of clustering satellite imagery, airborne gamma-ray, and regional geochemical data suites

Integrated data analysis for mineral exploration: A case study of clustering satellite imagery, airborne gamma-ray, and regional geochemical data suites

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