Karteikarten
Costal Erosion
Karten in diesem Stapel (22)
- 1What is fetch?Fetch is the distance of open water a wave travels across.
- 2What is swash?The wave travelling up the beach.
- 3What is backwash?The water that travels back to the sea.
- 4Explain longshore drift.Sand and pebbles are trasported along because the waves sweep them into the beach at an angle and out straight. (This is caused by the wind)
- 5What are some features of a constructive wave? (3main points)Strong swash
Weak backwash
About 1meter high - 6What are some features of a destructive wave? (3 main points)Weak swash
Strong backwash
About 5-6meters high - 7What is mechanical weathering also known as?Physical weathering/freese thaw weathering.
Is caused when there are no chemical reactions - 8Explain chemical weathering.Here a chemical reaction has taken place eg. acidic rainwater
- 9Explain biological weathering.Weathing involving flora and fauna. For example roots of plants and trees or rabbit burrows.
- 10Name the 4 main types of mass movement weathering.Rockfall
Lanslide
Mudflow
Rotational slip - 11What is hydraulic action?Trapped air causes explosions in the rock.
- 12What is abrasion?The sand papering effect over rocky surfaces
- 13What is attrision?Rocks are rubbed together and made smaller.
- 14What is Corrasian?Rock is picked up and thrown at the cliffs.
- 15What is corrosion?Cheamicals and minerals in the rock are dissolved
- 16Name the four ways of coastal transportation.Suspension
Traction
Solution
Saltation - 17What is suspension?Fine sediment is carrried as a suspension in the water making it look muddy or murky.
- 18What is solution?Dissolved material is carried along in solution so you can't see it.
- 19What is traction?Larger pebbles and cobbles are rolled along the sea bed.
- 20What is saltation?Small pebbles are moved when one pebble hits another causing it to bounce.
- 21What is a bay?A curving indentation in the coastline.
- 22What is a headland?An area of highland consisting of resistant rock, jutting into the sea.
Informationen
- Beschreibung
- includes fetch, swash, backwash, erosion, transportation, longshore drift.
- Erstellt von
- India Marsh
- Aufrufe
- 136
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