Figure 9

Hydrothermal alteration maps (a) Circular feature transform, (b) Amplitude contrast transform, (c) Boundary tracing of detected hydrothermal intrusions overlaid on RTP map, (d) K/eTh ratio map. (Created by Geosoft Oasis Montaj 2015 v. 8.3.3 software; https://www.seequent.com/help-support/oasis-montaj/).