鉱こう物ぶつ相そう

noun

mineral facies

Technical term in geology referring to a set of mineral assemblages characteristic of specific metamorphic conditions.

• この地ち域いきの変へん成せい岩がんは、緑りょく色しょく片へん岩がん相そうの鉱こう物ぶつ相そうを示しめしている。

  The metamorphic rocks in this area exhibit the mineral facies of the greenschist facies.