Figure 3
From: Geochemistry of Gold Ores Mined During Celtic Times from the North-Western French Massif Central

U/Pb versus Th/U, 208Pb/204Pb versus Th/Pb and 206Pb/204Pb versus U/Pb diagrams showing the radiogenic ingrowth with geologic times.
From: Geochemistry of Gold Ores Mined During Celtic Times from the North-Western French Massif Central
U/Pb versus Th/U, 208Pb/204Pb versus Th/Pb and 206Pb/204Pb versus U/Pb diagrams showing the radiogenic ingrowth with geologic times.