Coasts Shore. Classifying Coasts Primary Coast Secondary Coast.
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Transcript of Coasts Shore. Classifying Coasts Primary Coast Secondary Coast.
Coasts
Shore
Classifying Coasts
• Primary Coast
• Secondary Coast
Primary Coast
• Land Erosion Coasts– Fjords
• Coasts Built by Land Processes– Deltas
• River dominated• Tide dominated• Wave dominated
– Drumlins and Moraines
• Volcanic Coasts• Coasts Shaped by Earth Movements
Secondary Coasts
• Dissolution
• High Energy Coasts
• Low Energy Coasts
Features of Secondary Coasts
• Sea Cliffs
• Sea Caves
• Wave Cut Platform
• Shore straightening
• Accumulation of beaches– Long-shore Drift– Long-shore current
Beach
• Composition and Slope of Beaches– Swash– backwash
• Beach Shape– Berm– Berm crest– Backshore– Foreshore– Beach scrap– Longshore trough– Longshore bars
• Minor Beach Features
• Rip Currents
• Coastal cells
Large Scale Features of Secondary Coasts
• Sand Spits
• Bay mouth Bar
• Barrier Islands
• Lagoon
• Sea islands
• Tombolo
Coasts Formed By Biological Activity
• Coral Reefs– Fringing Reefs– Barrier Reefs– Atolls
• Mangroves Coasts
• Estuaries
Classification Of Estuaries
• Drowned river mouths
• Fjords
• Bar-Built
• Tectonic
Characteristics of Estuaries
• Salt wedge estuaries
• Well-mixed estuaries
• Partially mixed estuaries
• Fjords estuaries
• Reverse estuaries
• The Value of Estuaries
• Lagoons and wetlands
• Wetland
• Slough
• Salt marsh
• swamp
Characteristics of US Coasts
• The Pacific Coast
• The Atlantic Coast
• The Gulf Coast
Human Interference in Coastal Processes
• Breakwater
• Groins
• Sea wall
• Importing sand