Structure of the earth Flashcards
Learn process involved in natural hazards
1
Q
How many layers is the earths inner structure made of?
A
6
2
Q
What are the 6 layers to the earths inner structure?
A
Inner/outer core, inner/outer mantle, Asthenosphere, lithosphere and the crust
3
Q
How thick is the crust?
A
Thin/rigid, 30km deep.
4
Q
What is the mantle like?
A
Hot, dense layer of semi solid rock, 3000km thick.
5
Q
Which two layers make up the upper mantle?
A
Lithosphere and Asthenosphere
6
Q
Difference between asthenosphere and lithosphere?
A
Asthenosphere is semi molten and lithosphere is rigid (floats on top)
7
Q
What state is the outer core?
A
liquid
8
Q
What state is inner core?
A
Solid
9
Q
How thick is the core?
A
1250km
