Value: Extrusive rocks of mafic to felsic composition, associated volcanogenic rocks and derivative graywacke Label: Extrusive rocks of mafic to felsic composition, associated volcanogenic rocks and derivative graywacke Description: Symbol:
Value: Quartzofeldspathic gneiss, amphibolite and other high-grade metamorphic rocks Label: Quartzofeldspathic gneiss, amphibolite and other high-grade metamorphic rocks Description: Symbol: