§2.4 Coastal formations part 2

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• Middelbare school
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• Leerjaar 2

§2.4 Coastal formations part 2

Program

• Opening, homework and check
  
• Discuss assignment
  
• The sea builds up
  
• Homework
• The end
  

Homework

1, 2, 3 and 4

Any questions or difficulties?

Previous lesson...

Waves and abrasion coast/cliffed coast

The sea builds up

sedimentary coast: coast where the waves leave more material behind than they take away

• Flat or sloping shores along the coast. 
• Waves deposit sand, which forms beaches.
  

Beach ridge

Beach ridge:  Sand bank located above sea level 

that was created by breakers.

1 The sand bank is deposited by the sea and comes dry
at low tide.
2 The sand dries up and is carried away by
the wind.
3 Further on, the sand is deposited by the wind
and forms coastal dunes

Coastal dunes

What kind of coast
do you see here?

1. Abrasion coast
2. Sedimentary coast

In the process, sand is deposited. A beach forms.

The coast is being built up.

With weak return flow, more sand is deposited on the sea floor than the returning water takes with it

On flat, sloping coasts, waves slide up the shoreline.

What kind of coast is this?

1. Abrasion coast
2. Sand coast
3. Sedimentary coast
4. Cliffed coast

What kind of coast?

1. Dunes coast
2. Wadden coast
3. Fjord coast
4. Cliffed coast

Middle reaches

Upper reaches

Low reaches

Glacier

V-shaped valley

U-shaped valley

Coast

Let's make your work

From §2.4, make assignments 5, 7, 8 and 9