Coastal Processes and Landforms
Coastal Processes and Landforms Coastal Processes and Landforms
Rock fragments which have becomedetached by hydraulic action andcorrasion are worn down into smallerand smaller pieces.Currents and tidal movements cause thefragments to be swirled around and togrind against each other and the cliffface.This type of erosion produces pebblebeaches and leads to potholes in rockycoasts.
Salts and acids in sea water canreact with rocks, slowly dissovlingthem.The photo shows this process ona cliff of limestone which hasbeen chemically attacked bycarbonic acid and otherchemicals in sea water.
- Page 25: Thermo-erosion: Erosion caused by m
- Page 28 and 29: Fast Ice: And extensive, unbroken s
- Page 30 and 31: Consequences of ice shore interacti
- Page 32 and 33: C. Coastal Weathering Processes
- Page 34: • Abrasion: weathering byrock fra
- Page 37 and 38: • Coastal Landslide: Alternate we
- Page 39 and 40: • Chemical weathering:Salt weathe
- Page 46 and 47: Sea level rise in the lower mainlan
- Page 48 and 49: 1. Depositional Features2. Rock Coa
- Page 50 and 51: 1. Depositional Featuresb) Beach be
- Page 52 and 53: 1. Depositional Featuresc) Beach cu
- Page 54 and 55: 1. Depositional Featuresd) (Sand) b
- Page 56 and 57: 1. Depositional Featuresd) (Sand) b
- Page 58 and 59: 1. Depositional Featurese) Sand spi
- Page 60 and 61: 1. Depositional Featurese) Barrier
- Page 62 and 63: 1. Depositional Featurese) Spits an
- Page 64 and 65: 1. Depositional Featurese) Tombolo,
- Page 66 and 67: 1. Depositional Featuresf) Estuarie
- Page 68 and 69: 2. Rock Coast Features
- Page 70 and 71: 2. Rock Coast Features
- Page 72 and 73: The force of the waves hitting a cl
- Page 76: Formation of a Sea arch and stack
- Page 79 and 80: • Eventually the cliff becomesuns
- Page 81 and 82: Erosive waves may blast theirway ve
- Page 83 and 84: 3. Coral Coastal FeaturesCoral land
- Page 86 and 87: 3. Coral Coastal Features• Atoll
- Page 88 and 89: 2. Rock Coast Features• Coral ato
- Page 90 and 91: 2. Rock Coast Features• Coral ato
- Page 92 and 93: Tuvalu, only 4 m above sea level an
- Page 94 and 95: 3. Coral Coastal Features• Barrie
- Page 96: Shallow lagoons formed close to the
Rock fragments which have becomedetached by hydraulic action <strong>and</strong>corrasion are worn down into smaller<strong>and</strong> smaller pieces.Currents <strong>and</strong> tidal movements cause thefragments to be swirled around <strong>and</strong> togrind against each other <strong>and</strong> the cliffface.This type of erosion produces pebblebeaches <strong>and</strong> leads to potholes in rockycoasts.
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