Continental Margin: the portion of the seafloor adjacent to the continents; it may include the continental shelf, continental slope, and continental rise.

1
____ ____ _______
2
Continental Margin

• Continental Margin the portion of the seafloor
  adjacent to the continents it may include the
  continental shelf, continental slope, and
  continental rise.

3
Continental Shelf

• Continental Shelf the gently sloping submerged
  portion of the continental margin, extending from
  the shoreline to the continental slope.

4
Continental Slope

• Continental Slope the steep gradient that leads
  to the deep ocean floor and marks the seawards
  edge of the continental shelf.

5
Continental Rise

• Continental Rise the gently sloping surface at
  the base of the continental slope.

6
Ocean Basin Floor

• Ocean Basin Floor area of the deep-ocean floor
  between the continental margin and the mid-ocean
  ridges

7
Deep-Ocean Trenches

• Deep-Ocean Trench long, narrow creases in the
  ocean floor, form at sites of plate convergence

8
Abyssal Plains

• Abyssal Plains very level area of the deep-ocean
  floor, usually lying at the foot of the
  continental rise.

9
Seamounts

• Seamounts an isolated volcanic peak that rises
  at least 1000 meters above the deep-ocean floor.

10
Mid-Ocean Ridge

• Mid-Ocean Ridge system of underwater mountains,
  exceeds 70,000 km in length and has widths from
  1,000-4,000 km.

11
Seafloor Spreading

• Seafloor Spreading the process by which tectonic
  plates produce new oceanic lithosphere at ocean
  ridges.