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EXTERNAL GEOLOGICAL PROCESSES - Coggle Diagram
EXTERNAL GEOLOGICAL PROCESSES
SEA
landforms caued by erosin
natural bridges, from weaker zones that erode more quickly than the surroundind rock
wave-cut platforms, horizontal áreas of rock form near the foot of cliffs where the cliff face retreats
headlands and bays, form ruggged coastlines in where the coast is made up of hard and soft rock
cliffs, vertical masses of rock that separate land and sea, most common landforms of coastal erosion
seastacks, remains of former headlands that are no longer connected to the mainland.
2 methods for transport of eroded material
waves, drag material in towards the beach and then back out again in a continuous movement that makes the particles rounder and smaller
longshore drift, when the direction of the wind and the waves causes the sea water to transport material by pulling it along the coastline
two water movements causing EROSION
waves, caused by the action of the wind on the Surface of the water.Wave is made up by crest and trough.
tides, are oscillations in the sea level. Gravitational force of the Moon and the Sun on the water causes the tides
landforms caused by deposition
deltas-deposits that form at the mouth of rivers, they often have very fertile soil
tómbolos-deposits that connect a seastack to the mainland
spits-sandbars that are attached to the mainland at one end, points in the direction of the current that has formed it
marshes-both salt water and the freshwater flow into these shallow wetlands
lagoons-coastal bodies of water that are partially or even completely separated from the sea by a sandbar
beaches-deposits of sand or gravel along the coastline, they´re the most common coastal depositional landform
sandbars-san deposit tat form elongated islands, close to the coast in shallow Waters, because of the action of longshore drift