Earth science ocean terms

13 terms by rchle6

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abyssal

Very level area of the deep ocean floor.

bathymetry

The measurment of ocean depths and the charting of the shape or topography of the ocean floor.

continental rise

The gently sloping surface at the base of the coninental slope.

continental shelf

The gently slopin submerged portion of the continental margin.

continental slope

The steep gradient that leads tot he deep ocean floor.

deep ocean trench

Deepest part of the ocean. Deppression in the seafloor produced by bending of oceanic crust.

gas hydrate

unusually compact chemical structures made of water and natural gas

guyot

a submerged flat topped sea mount

midocean ridge

a continuous elevated zon on the floor of all the major ocean basins. Happens at divergent boundaries.

seamount

an isolated volcanic peak that rises at least 1,000 meters above the deep ocean floor.

submarine canyon

a sea ward extension of a valley that was cut on the continental shelf.

turbidite

current deposit characterized by graded bedding.

sonar

a measuring instrument that sends out an acoustic pulse in water and measures distances in terms of the time for the echo of the pulse to return

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