ridge crest

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The highest part of a ridge, typically 2–3 km above the level of the abyssal plains. With slow-spreading ridges (e.g. the Mid-Atlantic Ridge) the crest is split by a median valley, whereas fast-spreading ridges (e.g. the East Pacific Rise) have no median valley and the crest has more subdued topography.

Subjects: Ecology and Conservation — Earth Sciences and Geography.

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