Download Continental Margins

Continental Margins
The continental shelves are found adjacent to
most of the earth's coasts, sloping gently away
from the shore to a depth of about 200 meters.
Continental Margins
Two Types
Active
Passive
 Four main features
Continental shelf
Continental slope
Continental rise
Submarine canyons
Continental Margins
Tectonics
Tectonics
Plate Boundaries
Source: www.atmos.washington.edu/.../ project2/group7.htm
Active vs. Passive Margins
Active
•Mountains
•Trenches
•Volcanoes
Passive
•low slopes
•wide shelf
•Volcanoes
Active Margins
 A continental margin that is characterized by
earthquakes, volcanic activity, and orogeny
resulting from movement of tectonic plates.
Passive Margins
 Transition between oceanic and continental
crust that isn’t tectonically active
Source:http://emvc.geol.ucsb.edu/downloads.php
Source:http://emvc.geol.ucsb.edu/downloads.php
Source:http://emvc.geol.ucsb.edu/downloads.php