Earth System Flashcards
1
Q
What is the lithosphere
A
Strong Rocky shell, forms techtonic plates
2
Q
Asthenosphere?
A
Beneath the lithosphere that deforms to accommodate the motions of plates
3
Q
Continental crust versus oceanic crust?
A
Continental crust is less dense so it floats
4
Q
Oceanic crust and continental crust vs mantle
A
Mantle is more dense than the other two
5
Q
Crust is made up of?
A
Oxygen-46
Silicon-28
Aluminum-8
Iron-6
6
Q
Mantle is made up of?
A
Oxygen-44
Silicon-21
Magnesium-22.8
Iron-6.3
7
Q
Outer core made up of?
A
Iron-85
Oxygen, Nickel, Sulfur- 5 each
8
Q
Inner core made up of?
A
Iron-94
Nickel-6
9
Q
Continental crust matter vs oceanic crust matter?
A
Oceanic- mafic
Continental- felsic
10
Q
Hot matter from the mantle rises causing?
A
Plates to diverge
11
Q
What happens where the plates converge?
A
A cooled plate is dragged under
