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FACTORS AFFECTING COASTAL PROCESSES AND LANDFORMS 1.1.4 - Coggle Diagram
FACTORS AFFECTING COASTAL PROCESSES AND LANDFORMS
1.1.4
BEACH PROFILES
SHINGLE
steep gradient
easy flow - decreased backwash - decreased removal of sediment
SANDY
flatter and wider
small particles
more sand removed with backwash
more erosion
WAVE REFRACTION
wave approaches the coastline at an angle
part of wave closest to beach slows down
wave changes direction
waves move faster in deep water
WAVE REFLECTION
wave energy bounces back off rocks
can interfere with next wave - reduce energy
ROCK TYPE
different rocks - different rate of erosion
hard rock = steep cliffs - low erosion headlands
soft rock = slumps - high erosion - bays
BEDDING PLANES
horizontal + verticle = steep cliffs - cliff landforms made
seaward sloping = slides + sloping - high erosion
landward dipping = stable + steep - resistant to erosion - blowholes + geos
ROCK ORIENTATION
discornant
headlands and bays
cave, arch,stack, stump
concordant