C2.1 - Lesson 3: The formation of the Alps

• Aardrijkskunde
• Middelbare school
• vwo
• Leerjaar 2

From the mountains to the sea

C2.1: The formation of the Alps

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Earthquakes in Morocco

Use map 181C in the atlas (GB55):

1. Which two plates caused the earthquake?
2. What plate movement do they make?
3. How many earthquakes above a magnitude                                                            of 6 have been measured in Morocco since 1980?
4. What is the earthquake risk in Marrakech?
5. What is the name of the mountain range where the earthquake occurred?

The location of the earthquake is between Marrakech and Agadir

What is the plan for today?

• Finish paragraph 1
• Repeat the most important parts

Goals of last lesson

1. You are able to explain the differences between endogenic and exogenic forces.
   
2. You can think of 2 examples for both endogenic and exogenic forces (G66).
   
3. You can explain why shells and fossils can be found in the Alps.
   
4. You can explain in 4 steps how the Alps are formed. 

Endogenic & exogenic forces

Endogenic forces

Forces from within the Earth, that changes the Earth's crust.

Exogenic forces

Forces from outside the Earth, that changes the Earth's crust.

Today's goals

1. You can mention 3 differences between a young and an old mountain range.
   
2. You know the 4 different reliefforms, with their height (G77).
   
3. You can explain the process of the 3 types of weathering (G81).
   
4. You can explain the erosive effect of weathered material in the mountains (G84).
   

Check homework!

2, 4 and 5

2

2 a Exogenic forces change the Earth’s surface from the outside, endogenic forces change it from the inside.

 b earthquake: ... force

  weather: ... force

  weathering: ... force

  volcanic eruption: ... force

  erosion: ... force

Weathering (G81 + finish C2)

Open your notebook and work out the 3 kinds of weathering.

- What is weathering (in general)?

- What is the difference between erosion and weathering?

- What are the 3 kinds of weathering?

       * Work them out separately

       * What are the characteristics?

Weathering

You can explain the process of the 3 types of weathering (G81).

"The disintegration of rock as a result of weather and vegetation."

You know the 4 different reliefforms, with their height (G77).

Relief

0 - 200m - Lowland

200 - 500m - Hills

500 - 1500m - Low mountain range

1500 and above - High mountain range

5

100 million years ago: thick layers of dead animals and plants form in tropical sea.

80 million years ago: The African plate starts to move and pushes sedimentary rock out of the tropical sea to the north.

30 million years ago: The African plate collides with the Eurasian plate: formation of the Alps.

Plate movements

take note!

Three different movements:

Transform

Divergent

Convergent

Plate movements

Open G80

You can mention 3 differences between a young and an old mountain range.

Answer

Young mountain ranges are high with (1) steep slopes, (2) sharp peaks and (3) deep valleys.

Old mountain ranges have (1) gentle slopes and are (2) round at the top. (3) They are also much lower.

Young mountain ranges are still growing.

Young or old?

Young or old?

Let's go!

• Read the text at page 24/25 of your coursebook.
  
• Make exercises  6 to 9 of paragraph 1 at page 23 in your workbook.
• Read GeoGuide numbers 81 & 84.

Rules while working:

• You are allowed to work together
  
• Raise your finger if you've a question.
  
• Always read the exercise well before you ask your question.

Today's goals

1. You can mention 4 differences between a young and an old mountain range.
   
2. You know the 4 different reliefforms, with their height (G77).
   
3. You can explain the process of the 3 types of weathering (G81).
   
4. You can explain the erosive effect of weathered material in the mountains (G84).
   

Homework for next lesson

6 till 9 of paragraph 1.