Mon Prof Augmenté
Colliding Plates Raise Mountains
Age 15 · Geography
Two thick slabs of continental crust push into each other. The rock between them folds upward and thickens, building high mountain chains over millions of years.
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Age 15: open this week
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In the picture
- A thick continental plate: one of the two landmasses pushing inward.
- The opposing continental plate: the second landmass pushing from the other side.
- Layered rock bands: strata bending upward where the plates meet.
- A sharp central peak: the highest part of the folded mountain chain.
- An hourglass: the millions of years needed for the mountains to rise.
Examples
- The Himalayas rising as India pushes into Asia.
- The Alps forming as Africa and Europe collide.
Key takeaways
- Continental plates move slowly, but their collision can fold rock into high mountains.
- Mountain chains grow over millions of years as the crust crumples and thickens.
Quiz: Colliding Plates Raise Mountains (Age 15)
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What happens to the rock between two continental plates that push into each other?
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According to the card, what can happen when continental plates collide?
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How long does the card say mountain chains take to grow as the crust crumples and thickens?
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