Hummannittiess
About this set
Created by:
ilovesinging on November 10, 2010
Subjects:
Description:
Hey there, so you've come to check out my coastal geography flashcards....
hope you have fun learning how coasts are formed!
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28 terms
Terms | Definitions |
|---|---|
 Erosion | The wearing away of the earth's surface by agents such as wind and water |
| Swash | The sand and other materials that run up the beach |
| Backwash | The movement of water back down the beach to the sea |
| Constructive Waves | Small waves that carry and deposit sand on the beach |
| Destructive Waves | Large waves that carry more material in the backwash to the deep water |
| Longshore drift | The material that is washed up along the beach |
| Cliffs and Rocky Platforms | Formed by waves eroding the rock face between high and low tide |
| Notch | Caused by the erosion the constant high and low tide, which forms at the base of a cliff |
| Headlands | Harder rocks, that take longer to erode |
| Bay | Formed by soft rocks that wear away quickly |
| The bending of waves | Refraction |
| Caves | Formed where weak rocks are eroded on each side of a headland |
| Arch | Formed by the cave eroding enough to join another |
| Stack | Formed by further erosion of the rock supporting the rock, which causes it to collapse |
| Blowhole | Formed by the pressure that builds up in the back of the cave, causing part of the roof to collapse |
| Inlet | Formed when the entire roof of a cave collapses |
| Coastline are built by these | Deposition and longshore drift |
| Beaches are formed by this | Material that is brought by the waves in the swash |
| This part of the beach in submerged during high tides and exposed during low tides | Intertidal (section) |
| Berm | A sand ridge |
| Sand Dunes | Formed by the wind when dry sand is blown to the back of the beach |
| Initial dune is also known as this | Foredune |
| Behind the foredunes | Back dunes |
| The purpose of vegetation on dunes | Stabilises dunes |
| Waves are affected by these factors | Windspeed, strength and fetch |
| Most of coast erosion is caused by one major factor | People |
| Tombolo | Formed when a spit joins two land areas |
| Spit | The sand build up, caused by longshore drift which produces an extension of the coastline |
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