EntityQ7835547· pop 22· linked from 171 articlestrapSign in to saveformation of dark-colored, fine-grained, non-granitic intrusive or extrusive igneous rockConnectionsbasaltEntityThe PalisadesEntityIcelandCountryCaliforniaEntityNew YorkEntityyearEntityNew JerseyEntityMassachusettsEntityOregonEntityWashingtonEntityConnecticutEntityInternational Standard Book NumberEntityNewfoundland and LabradorEntityconcreteEntitygraniteEntityNew HavenEntitylavaEntitymagmaEntityigneous rockEntityTriassicEntityCategoriesColumnar basaltsFlood basaltsIgneous intrusionsIgneous petrologyMafic intrusions