Differentiation of th earth

Question 1

What happens to materials in the earth?

Answer 1

Heavy materials, such as iron, sink towards the centre, causing lighter materials to rise to the earth’s surface

Question 2

Where do density anomalies form?

Answer 2

Form at the evolving core-mantle boundary (LLSVPs)

Question 3

What are LLSVPs?

Answer 3

Large Low Shear Velocity Provinces which are large regions within the earth’s lowermost mantle where seismic waves propagate at slower velocoties compared to the surrounding mantle which implies compositional differences

Question 4

Where do lighter materials go?

Answer 4

Escape to form oceans and atmosphere via intense volcanic activity