The thing that is messing with my head Goldierocks with regard to contact zones, is that I now understand thanks to your tutelage and further reading, that granite came much later than Victoria's gold deposits. And yet, I still struggle with trying to understand why it is that gold is so often associated with granite?
Did they share the same geological faults but at different times? I notice with areas such as Tarnagulla, Kingower, Rheola, Longbush, and Moliagul, that they all sit around a circular area that on a map of the pre-permian geology of the areas shows a huge granite deposit. Even the veins around these areas seem to be all compressed and deformed from their straight lines as though they have been pushed aside by the huge granite intrusion and bunched up together. Does this then mean that areas above these pre-permian granite intrusions would be barren of gold?