Composite dykes, 570-580Ma with rhyolite core and mafic rims, intruding into 610-615 Ma granite. Marker indicates viewpoint of the photographer, photo looking east
PhotoID361
Composite dykes, 570-580Ma with rhyolite core and mafic rims, intruding into 610-615 Ma granite. Marker indicates viewpoint of the photographer, photo looking east
PhotoID361
Photograph: Cees Passchier, Ghaleb Jarrar