Earth Structure

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  • Created by: OctaviaL
  • Created on: 30-05-16 18:15
What elements are found in the core?
Iron and nickel.
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What temperature is Earth's core?
Over 5,000 C.
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Are the outer and inner core molten or solid?
Inner core is solid, outer core is molten.
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What does the mantle consist of?
Molten and semi-molten lighter elements such as silicon and oxygen.
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What are five elements commonly found in the crust?
Silicon, oxygen, potassium, aluminium and sodium.
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What is the lithosphere?
The crust and the rigid upper section of the mantle.
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How thick is the lithosphere?
Approx. 80-90km.
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What is the lithosphere split into?
Seven large plates and several smaller plates.
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How thick is continental and oceanic crust?
Continental: 30-70km. Oceanic: 6-10km.
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How old is continental and oceanic crust?
Continental: >1,500m years. Oceanic:
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What is the density of continental and oceanic crust?
Continental: 2.6 (lighter). Oceanic: 3.0 (heavier).
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What is the composition of continental and oceanic crust?
Continental: mainly granite; silicon, oxygen, aluminium. Oceanic: mainly basalt; silicon, oxygen, magnesium.
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Other cards in this set

Card 2

Front

What temperature is Earth's core?

Back

Over 5,000 C.

Card 3

Front

Are the outer and inner core molten or solid?

Back

Preview of the front of card 3

Card 4

Front

What does the mantle consist of?

Back

Preview of the front of card 4

Card 5

Front

What are five elements commonly found in the crust?

Back

Preview of the front of card 5
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