Last Updated
：2025/11/23
accretionary wedge
Noun
Japanese Meaning
地質学において、沈み込む海洋地殻プレートと大陸プレートの間で、海洋地殻プレートの上部からこすり落とされた堆積物が積み重なって形成される隆起体。
（ plural ）
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(geology) The accumulation of surface sediment formed between a subducting oceanic crustal plate and a continental tectonic plate, as it is scraped from off the top of the oceanic crustal plate.
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accretionary wedge
Geologists examined the accretionary wedge to determine how sediments are scraped off the subducting oceanic plate and accreted onto the continental margin.
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Geologists examined the accretionary wedge to determine how sediments are scraped off the subducting oceanic plate and accreted onto the continental margin.
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