Hazards and Structure of the Earth Flashcards
Give 2 characteristics of oceanic crust.
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- More dense than continental crust
- Heavier than continental crust
- Younger than continental crust
- Thinner than continental crust.
Give 2 characteristics of oceanic crust.
Some volcanoes occur in the middle of plates. What are these known as?
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Volcanic hotspots
Some volcanoes occur in the middle of plates. What are these known as?
Identify the two types of tectonic crust.
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Oceanic and continental crust
Identify the two types of tectonic crust.
What are the characteristics of the outer core?
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The layer surrounding the inner core. A liquid layer of iron and nickel.
What are the characteristics of the outer core?
What is the name of the upper portion of the mantle?
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The asthenosphere
What is the name of the upper portion of the mantle?
