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噴出岩

2 件の記事

IUGS classification of aphanitic extrusive igneous rocks to their relative alkali (Na2O + K2O) and silica (SiO2) weight contents. Blue area is roughly where alkaline rocks plot; yellow area where subalkaline rocks plot. Original source: *Le Maitre, R.W. (ed.); 1989: A classification of igneous rocks and glossary of terms, Blackwell Science, Oxford.

火山岩（噴出岩）の形成プロセスと多様な岩石タイプ

火山岩噴出岩マグマ斑晶
2026年8月10日続きを読む →
IUGS classification of aphanitic extrusive igneous rocks to their relative alkali (Na2O + K2O) and silica (SiO2) weight contents. Blue area is roughly where alkaline rocks plot; yellow area where subalkaline rocks plot. Original source: *Le Maitre, R.W. (ed.); 1989: A classification of igneous rocks and glossary of terms, Blackwell Science, Oxford.

火山岩（噴出岩）の形成プロセスと多様な組織・種類

噴出岩火山岩マグマ斑晶
2026年8月9日続きを読む →