Very level area of the deep ocean floor.
The measurment of ocean depths and the charting of the shape or topography of the ocean floor.
The gently sloping surface at the base of the coninental slope.
The gently slopin submerged portion of the continental margin.
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.
unusually compact chemical structures made of water and natural gas
a submerged flat topped sea mount
a continuous elevated zon on the floor of all the major ocean basins. Happens at divergent boundaries.
an isolated volcanic peak that rises at least 1,000 meters above the deep ocean floor.
a sea ward extension of a valley that was cut on the continental shelf.
current deposit characterized by graded bedding.
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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