Mantle:
The layer above the core is the mantle. It begins about 6 miles to 10 km below the oceanic crust and about 19 miles 30 km below the crust. Also, the mantle is to separate the inner mantle and the outer mantle. However, it is about 1,800 miles and 2,900 km thick and makes up nearly 80 percent of the Earth's total volume. Did you know, that Scientists deals with the structure of the mantle in two different ways. One way is based on its chemical construction the material.