Primary Coasts Young coasts Terrestrial influences dominate Types –Land erosional coasts –Built...
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Transcript of Primary Coasts Young coasts Terrestrial influences dominate Types –Land erosional coasts –Built...
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