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migmatitic gneiss with melt veins parallel to folds. Yarweelor Gneiss (reworked Yilgarn gneiss – protolith 3.7-2.4 Ga). North at the top

Migmatitic gneiss with melt veins parallel to folds. Yarweelor Gneiss (reworked Yilgarn gneiss – protolith 3.7-2.4 Ga). North at the top

Photograph: Cees Passchier