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Grey gneiss that has strongly deformed mafic bands, several generations of granitic veins and sinistral shear bands with leucosome material. The deformation is of unknown age, but may be the steep deformation component of the Errabiddy shear zone. Yarweelor Gneiss (reworked Yilgarn gneiss – protolith 3.7-2.4 Ga). The pegmatite vein that crosses the deformed fabric may be of Moorarie age (1830-1780 Ma)

Grey gneiss that has strongly deformed mafic bands, several generations of granitic veins and sinistral shear bands with leucosome material. The deformation is of unknown age, but may be the steep deformation component of the Errabiddy shear zone. Yarweelor Gneiss (reworked Yilgarn gneiss – protolith 3.7-2.4 Ga). The pegmatite vein that crosses the deformed fabric may be of Moorarie age (1830-1780 Ma)

Photograph: Cees Passchier