Migmatitic gneiss with melt veins axial planar to older melt veins which have been folded; the last veins are deformed by the Errabiddy shear zone mylonites. Yarweelor Gneiss (reworked Yilgarn gneiss – protolith 3.7-2.4 Ga)
Migmatitic gneiss with melt veins axial planar to older melt veins which have been folded; the last veins are deformed by the Errabiddy shear zone mylonites. Yarweelor Gneiss (reworked Yilgarn gneiss – protolith 3.7-2.4 Ga)
Photograph: Cees Passchier