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2.5 Mountain ranges wear down, mountain ranges are formed
2.5 Mountain ranges wear down, mountain ranges are formed
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Slide 1:
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Aardrijkskunde
Middelbare school
havo, vwo
Leerjaar 2
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2.5 Mountain ranges wear down, mountain ranges are formed
Slide 1 - Diapositive
Young and old mountain ranges
Slide 2 - Diapositive
Old Mountains
Young Mountains
Slide 3 - Question de remorquage
A young mountain has........
A
Low peaks, sloping walls and shallow valleys
B
Deep valleys, high peaks and steep walls
Slide 4 - Quiz
Young mountain
A
Alps
B
Ardennes
C
Pyrenees
Slide 5 - Quiz
Young mountain
Old mountain
Slide 6 - Question de remorquage
Mountain ranges
Young
- High
- Steep
- Pointed mountain peaks
- Deep valleys
Slide 7 - Diapositive
Mountain ranges
Old
- Lower
- Gentle slopes
- Rounded tops
- Wider valleys
Slide 8 - Diapositive
Young mountain
Old mountain
Slide 9 - Diapositive
Orogenesis
Mountains can arise and grow due to forces from within the earth,
- endogenous forces -
.
Orogeny = Mountain formation
Slide 10 - Diapositive
Due to
erosion
Mountains wear away and valleys arise !
(Exogenic forces)
Slide 11 - Diapositive
Seabed or mountain?
Look at source 17
Slide 12 - Diapositive
Fossils
Mountains
Slide 13 - Diapositive
Sea bottom or mountain?
Different types of rocks in the Himalayas -> also fossils from the seabed
How are fossils from the seabed found so high in the mountains?
The ocean floor has become part of the Himalayas
Slide 14 - Diapositive
Sea bottom or mountain?
- Fossils of animals on the seabed
- Magma, igneous rock, granite
Plates move up, so everything
goes up
Slide 15 - Diapositive
The alps as an example
Read
Slide 16 - Diapositive
Igneous rocks
Slide 17 - Diapositive
Igneous rocks
Slide 18 - Diapositive
Stollingsgesteente
Dieptegesteente
Sedimentgesteenten
Slide 19 - Diapositive
Igneous rock: From magma to granite --> erosion
Slide 20 - Diapositive
high peaks
A mountain higher than 1500 meters
Most mountains in the Alps are high mountains
The Netherlands has no high mountains
Slide 21 - Diapositive
Middle peaks 500 -1500 meter
Slide 22 - Diapositive
Types of mountains
high mountains (1500m - higher)
middle mountains (500m-1500m)
hill country (200m-500m)
(low mountains (0m - 200m))
Slide 23 - Diapositive
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