b'John Denhams best of Exploration GeophysicsFeatureFigure 1.Old style geological mapping and geophysical interpretation of magnetic and radiometric data in the Mt Wellington area, Victoria (from VandenBerg etal. 1995).Figure 2.Simplified geological map pre-geophysics (left) and simplified interpretation of magnetic data over grey scale first vertical derivative of total magnetic intensity. (Granites shaded red, Ordovician sediments are light pink, Silurian sediments are dark pink, Devonian sediments are purple and Devonian volcanics are yellow). The Goonmirk Rocks Granodiorite is labelled A.47 PREVIEW JuNE 2020'