最終更新日：2024/07/31

(geology) The matrix of fine-grained crystalline material in which larger crystals are embedded.

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groundmass

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groundmass

noun

(geology) The matrix of fine-grained crystalline material in which larger crystals are embedded.

The groundmass of the rock is composed of fine-grained minerals.

意味（1）

(geology) The matrix of fine-grained crystalline material in which larger crystals are embedded.