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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