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Vocab 1-4 Science
10 cards·by Smartkitty
abyssal plain
a smooth, nearly flat region of the deep ocean floor
continental shelf
a gently sloping, shallow area of the ocean floor that extends outward from the edge of the
continent
continental slope
a steep incline of the ocean floor leading down from the edge of the continental shelf
guyot
a flat-topped underwater seamount
seamount
mountains whose peaks do not break the surface of the ocean water above them
sonar
a device that determines the distance of an object under water by recording echoes of sound
waves
deep-ocean trench
a deep valley along the ocean floor beneath which oceanic crust slowly sinks towards the
mantle
mid-ocean ridge
an undersea mountain chain where new ocean floor is produced
rift valley
a deep valley that forms where two plates move apart
subsurface topography
the general form and shape of the surface of the crust underneath the ocean