The 2.5 Ga Duxbury massif, Quebec : a remobilized piece of pre-3.0 Ga sialic basement(?)
The Duxbury massif, Eastmain District, Quebec, is a complex tonalitic intrusion that is internally divisible into a homogeneous border zone of granodiorite (Rb–Sr total-rock isochron age = 2500 ± 8...