Last Updated：2025/12/02
Sentence
地質学者たちは噴火の履歴を理解するために、層をなした火山砕屑岩を調査した。
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Geologists studied the layered pyroclastic rocks to understand the volcano's eruptive history.
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Geologists studied the layered pyroclastic rocks to understand the volcano's eruptive history.
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Related words
pyroclastic rocks
Noun
form-of
plural
Japanese Meaning
火砕岩－火山の噴火に伴い放出された破砕物から構成される岩石（「pyroclastic rock」の複数形として用いられる）
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