Coasts Flashcards
Corrosion is an 1._________ process caused when 2.________ in water 3._________ the minerals in the rock.
- Erosional
- Salt
- Erode
Abrasion is an 1._________ process, whereby rocks carried by the 2._________ are thrown at the cliffs.
- Erosional
2. Water
Hydraulic Action is an 1._________ process, where the sheer force of the 2._________ breaks open 3._________ in the rock.
- Erosional
- Wavws
- Cracks
Attrition is where 1._________ in the sea water hit off each other causing a 2._________, smooth rock.
- Rock
2. Pebble
Stage 1 of a Wave cut platform is?
Water erodes the face of the cliff by Abrasion and Hydraulic Action.
Stage 2 of a Wave cut platform is?
Overtime a notch is formed which undercuts the cliff, leaving it unstable.
Stage 3 of a Wave cut platform is?
Eventually the cliff collapses causing the cliff to retreat. a Wave cut platform is left behind, seen above low tide.
Name 3 different types of SOFT rock that can be eroded to form a bay.
- Clay
- Sandstone
- Pumice
Name 3 different types of HARD rock that can be eroded to form a bay.
- Chalk
- Limestone
- Flint
How are Bays and Headlands formed? explain in a short summery.
Coast has different sections of hard and soft rock, the soft rock is eroded by Hydraulic Action and the hard rock is not the eroded rock is n a bay.
Summarise the stages that form an arch, stack and stump.
- Large crack opened up by Hydraulic Action.
- Due to Abrasion and Hydraulic Action the crack turns into a cave
- the erosional processes enlarges the cave
- The cave breaks through the headland forming a natural arch
- The arch is eroded and collapses leaving stack
- The stack erodes forming a stump.
What is long shore drift? where is it found?
Long Shore Drift is a deposition process. it is the movement of debris along the shoreline in a zigzag pattern. It is found along the coast
Give a detailed answer to what long-shore drift is.
The swash approaches at an angle to the beach pushing the debris, with the backwash pulling the tide back by gravity the material is pulled back into the sea where the process is repeated,.
A 1._________ is composed of sand and shingle. Spits form when there is a break in the coastline e.g 2._________. The sand shingle is 3.________ along the coastline by long-shore drift. Although there is a break in the coastline the material continues to move in the same direction. The material is 4._________ and over many years a spit forms.
- Spit
- Deposited
- The mouth of a river
- Constructive
A ?_________, or shoal is a land form which is in or partly in a body of water. Usually it is made of sand, silt, and/or small pebbles.
Q. WHAT FORMATION IS THIS?
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