Primary Coasts

• Young coasts

• Terrestrial influences dominate

• Types–Land erosional coasts

–Built out by land processes

–Fault Coasts

Land Erosional Coast: Chesapeake Bay

Courtesy of NASA

Built by Land Processes:Mississippi Delta

Courtesy of NASA/JPL 2002

Built by Land Processes: Moraines and Drumlins

Courtesy of Fred Smith Courtesy Univ. Wisconsin Geology

Volcanic Coasts

Courtesy USGS

Fault Coast: Pt. Reyes

Courtesy of Geography Students in Towson Univ. Env. Applications of GIS Fall, 2002

Fjords

Courtesy E.A. Vikesland

Aurlandsfjord, Norway Puget Sound

Courtesy NPL U. Wash.

Secondary Coasts

• Significantly altered by marine processes

• Characteristics

– Irregular coastline

–Sea cliffs and sea caves

–Beaches

Secondary Coast

North California Coast

Courtesy David Eppstein

Beaches