Coastal Classification**

Long-term Dynamics

Short-term Dynamics

Passive Coasts: Little tectonic activity

Active Coasts: Lots of tectonic activity

Mountains

Earthquakes

Volcanoes

Sloping continental shelf

Flat lands

Secondary (ocean based)

Primary (land based)

Drowned river valleys

Deltas

Glaciers

Mangroves

Barrier islands

Oyster reefs