picrite (Q41879)
From geokb
Picritic rocks (fine grained ultramafic or basaltic rocks with <53% SiO2, (Na2O+K2O)18%) defined chemically as having 1-2% (Na^2O+K^2O)
Language | Label | Description | Also known as |
---|---|---|---|
English | picrite |
Picritic rocks (fine grained ultramafic or basaltic rocks with <53% SiO2, (Na2O+K2O)18%) defined chemically as having 1-2% (Na^2O+K^2O) |