continental margin

noun Physical Geography.
the offshore zone, consisting of the continental shelf, slope, and rise, that separates the dry-land portion of a continent from the deep ocean floor.
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Main Entry:  continental margin
Part of Speech:  n
Definition:  the offshore zone, consisting of the continental rise, shelf, and slope that separates the land of a continent from the deep ocean floor; the ocean floor from the continental slope to the abyssal plain
Usage:  geology
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Example sentences
Evidence available suggests a link between hydrate instability and occurrence of landslides on the continental margin.
Along the continental margin, volcanoes grew, coincident with the initiation of subduction.
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