RE:RE:RE:RE:RE:RE:RE:Swan and Eagle Zones at Fosterville I strongly recommend watching the video "Mega Epizonal deposits Part 1". I strongly recommend watching all four videos.
The Appleton fault is an orogenic fault created during or shortly after the collision of North America and Europe some 430 million years ago. These faults are very deep and it is generally believed that the gold bearing fluids came from very deep down.
These Epizonal gold deposits form at a depth of ~3 Km implying that the top 3 Km has been eroded away at Queensway over the last 430 million years.