Last Updated：2025/11/25
Sentence
現地の地質学者は、斜長石を形成するのに必要な量よりもナトリウムとカリウムがアルミニウムに対して多い、過アルカリ性の凝灰岩であることを鉱物組成から確認した。
Quizzes for review
Field geologists identified a peralkaline tuff whose mineral assemblage indicated unusually high sodium and potassium relative to aluminium.
See correct answer
Field geologists identified a peralkaline tuff whose mineral assemblage indicated unusually high sodium and potassium relative to aluminium.
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Related words
peralkaline
Adjective
Japanese Meaning
（地質学）長石が生成されるために必要なアルミニウムの量に対し、ナトリウムとカリウムの比率が高い火成岩を指す用語
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