Last Updated:2025/11/27
The porphyraceous basalt displayed large feldspar phenocrysts set in a fine-grained matrix.
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The porphyraceous basalt displayed large feldspar phenocrysts set in a fine-grained matrix.
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その斑状の玄武岩は、細粒の基質中に大きな長石斑晶を含んでいた。