玄げん武ぶ岩がん質しつマグマ

expression, noun

basaltic magma

Geological term for magma with a composition that solidifies into basalt.

• 玄げん武ぶ岩がん質しつマグマは粘ねん性せいが低ひくく、流ながれやすい。

  Basaltic magma has low viscosity and flows easily.