@CONFERENCE\{IMM1991-06897, author = "K. Conradsen and B. K. Ersb{\o}ll and A. A. Nielsen", title = "Integration of Multi-Source Data in Mineral Exploration", year = "1991", pages = "1053-1066", booktitle = "Eighth Thematic Conference on Geologic Remote Sensing", volume = "II", series = "", editor = "", publisher = "Environmental Research Institute of Michigan (ERIM)", organization = "", address = "Denver, Colorado, {USA}", url = "http://www2.compute.dtu.dk/pubdb/pubs/6897-full.html", abstract = "This paper describes several multivariate statistical analysis applications of geochemical, geophysical and spectral variables in mineral exploration. Mahalanobis' distance is described in some detail and based on four multi-source variables this measure is applied to produce a map that gives an expression of the statistical proximity of each point in the map to a mineralized area. The four multi-source variables chosen from a much larger set of variables have all been subject to extensive data processing: the geochemical variable is the noise {MAF} (minimum-maximum autocorrelation factor) of eleven kriging interpolated stream sediment variables; the geophysical variables are kriged aeromagnetic data iteratively moving average corrected to minimize the flight line striping and kriged Bouguer gravity anomaly data corrected for a quadratic trend; and the spectral variable is the density of automatically generated linear features based on Landsat {TM} data. The results indicate among other things a not previously recognized subsurface continuation of an already mapped lineament." }