The upper mantle is made of rock that is rich in oxygen O, iron Fe, magnesium Mg, and aluminum Al. It extends to approximately 1800 ? below the surface.

Question

asked Apr 4, 2023 142k views

1 Answer

Jeromy Anglim · Answer 1 · 2023-04-08T15:17:21+0000

Answer: Mantle.

Step-by-step explanation:

The mantle under the crust is about 1,800 miles deep (2,890 km). It is composed mostly of silicate rocks rich in magnesium and iron.