I think it is a good tool for maaping dike like structures and circular features but in needs another tools to support its results for alteration detection like Aster or Landsat data, also you can use CET grid analysis for initial detection to the favurablelocations of altered zones.
@Stephen Eguba Ekwok, Hymap or Hyperion are hyperspectral images. I do not have working experience in Geosoft. If you have ENVI license than it will provide you better options in hyperspectral image processing.