. "OLOPGB"@en . "Olivine-orthopyroxene-gabbro - A type of gabbro. In the Rock Classification Scheme, it is a gabbro with plagioclase 10 - 90%, pyroxene 5 - 85% (<45% orthopyroxene) and olivine 5 - 85% of plagioclase + pyroxene + olivine. British Geological Survey Research Report RR/99/06, section 5.1 and figs. 13, 14."@en . "stable"@en . . . "Olivine-orthopyroxene-gabbro"@en . . . . "Olivine-orthopyroxene-gabbro"@en .