Granite intrusion in metabasalt, NE Shaw batholith near the split rock shear zone Host rock is a metabasalt of the Warrawoona Sequence, cut by dykes (centre) of 3.47 Ga tonalite, and all cut by a 2.85 Ga undeformed adamellite at bottom right
Granite intrusion in metabasalt, NE Shaw batholith near the split rock shear zone Host rock is a metabasalt of the Warrawoona Sequence, cut by dykes (centre) of 3.47 Ga tonalite, and all cut by a 2.85 Ga undeformed adamellite at bottom right
Photograph: Cees Passchier