| 释义 |
granogabbro granogabbro[¦gra·nō′ga·brō] (petrology) Plutonic rock composed of quartz, basic plagioclase, potash-feldspar, and at least one ferromagnesian mineral; intermediate between a granite and a gabbro, and in a strict sense, a granodiorite with more than 50% boric plagioclase. |