Last Updated
：2025/11/24
claystone
Noun
countable
uncountable
Japanese Meaning
細かい粘土粒子から形成される堆積岩（粘土岩） / 河川堆積物などに現れる結節状の塊（結節岩の一種）
（ plural ）
Quizzes for review
(geology) Sedimentary rock composed of fine clay particles. / One of the concretionary nodules in alluvial deposits.
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claystone
Geologists discovered a thin layer of claystone beneath the river delta.
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Geologists discovered a thin layer of claystone beneath the river delta.
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