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Ocean Floor Features
What you need to know
 You need to know where
and what the Deep
Ocean basin,
continental margin,
shelf, slope, and rise,
shoreline, abyssal plain,
seamount, guyot,
trench, and a midAtlantic ridge are.
The Continental Slope, Shelf, Rise,
and Margin
 Continental Shelf -Relatively flat part
of a continental margin that is covered
by shallow ocean water.
 Continental Slope -Part of the
continental margin at the edge of a
continental shelf where the ocean
plunges steeply at 4 to 5 kilometers.
 Continental Rise - Part of a
continental margin that separates a
continental slope and the ocean floor.
 Continental Margin-Area where
underwater edge of a continent meets
the ocean floor.
Shoreline, Deep Ocean Basin, and
Abyssal Plain.
 Shoreline-Boundary where the land and the sea meet
 Deep Ocean Basin-Oceanic Crust/Abyssal Plain
 Abyssal Plain-Large flat area on the ocean floor.
Active Vs. Passive Continental
Margins
 Active Margins-Commonly the sites of earthquakes, volcanoes,
mountain building, and the formation of new igneous rock.
 Passive Margins- Flat land extending both directions from the
beach, long river systems, and the accumulation of thick piles
of sedimentary debris on the relatively wide continental
shelves.