16. Placer Gold Puzzles

Placer Gold Puzzles starts with the Witwatersrand, South Africa and the long debate over the model for gold formation. After that, we head to Brazil to see how quality geochemical data analysis assisted by machine learning helped decipher a Proterozoic paleo placer. Lastly we consider changing mindsets about legacy mining through a new model that aims to create net benefit from the mining of placer gold. Professor Hartwig Frimmel (University of Wuerzburg) takes us through the his...