Figure 3

Representative cathodoluminescence images of zircon grains from (a) aegirine–augite granite and (b) arfvedsonite granite from the LWZ pluton showing 206Pb/207Pb ages.

Representative cathodoluminescence images of zircon grains from (a) aegirine–augite granite and (b) arfvedsonite granite from the LWZ pluton showing 206Pb/207Pb ages.