Question

After getting so much pressure why the Lower Mantle is still solid?

Answer 1

the high pressure of overlying layers keep this layer in solid state

Answer 2

The reason why after having so much pressure on the lower mantle, its so solid-

Explanation:

The thickness of the lower mantle layer is assumed to be 700 km.

According to another view, its thickness is 1,000 km from Moho disambiguation. 2,900 km.

Temperatures are high in this part. S Seismic waves flowing in this part showed that it is definitely a solid part. The main reason for the gradual increase in density and intensity of seismic waves is the excess of pressure in this part.

At higher depths there is a situation of more pressure, here the amount of iron in silicate minerals increases with depth, which has increased the density of this part.

A 300-km-wide transition layer is found between the upper mantle and lower mantil.