noun
granodiorite
A coarse-grained intrusive igneous rock similar to granite but with more plagioclase feldspar. Technical term used in geology.
この地域の基盤岩は主に花崗閃緑岩からなる。
The bedrock in this area consists mainly of granodiorite.
花崗岩 is granite, which has a higher proportion of alkali feldspar relative to plagioclase compared to granodiorite.
Compound of 花崗 (granite) + 閃緑岩 (diorite), reflecting its intermediate composition between granite and diorite.