Banded gneiss with melt vein in a shear band. Yarweelor Gneiss (reworked Yilgarn gneiss – protolith 3.7-2.4 Ga)
Banded gneiss with melt vein in a shear band. Yarweelor Gneiss (reworked Yilgarn gneiss – protolith 3.7-2.4 Ga)
Photograph: Cees Passchier