This paper demonstrates a methodology for the automatic joint interpretation of high resolution airborne geophysical and space-borne remote sensing data to support geological mapping in a largely automated, fast and objective manner. At the request of the Geological Survey of Namibia (GSN), part of the Gordonia Subprovince of the Namaqua Metamorphic Complex situated in southern Namibia was selected for this study. Keywords: Cluster analysis, discriminant analysis, lineament detection, mapping, southern Namibia, Namaqua Metamorphic Belt. This is a pre-print version. The definitive version of the work is published in the Journal of African Earth Sciences, 106: 60-74.