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Bertibubba Supersuite (c. 1965-1945 Ma; older name Wooramel Suite). Augengneiss with strong steeply NNW-dipping foliation and subhorizontal lineation with mantled porphyroclasts that indicate dextral shear sense; dominant D1-deformation, the first phase of the Errabiddy shear zone deformation, related to the Glenburg Orogeny. The gneiss is supposed to be derived from partial melting of rocks like those of the Dalgaringa supersuite. Width of view 30 cm
PhotoID475

Bertibubba Supersuite (c. 1965-1945 Ma; older name Wooramel Suite). Augengneiss with strong steeply NNW-dipping foliation and subhorizontal lineation with mantled porphyroclasts that indicate dextral shear sense; dominant D1-deformation, the first phase of the Errabiddy shear zone deformation, related to the Glenburg Orogeny. The gneiss is supposed to be derived from partial melting of rocks like those of the Dalgaringa supersuite. Width of view 30 cm
PhotoID475

Photograph: Cees Passchier