The lower part of the mantle layer is about 2200 kilometers thick, or about 1365 miles thick. The upper mantle is about 667 kilometers thick or 415 miles thick.
It is 2,900 kilometers
Earths mantle is less dense and very hot. The mantle is 2885km thick.
Working outwards from the centre: The Earth is believed to be formed of an inner core, outer core, inner mantle, outer mantle, and the crust. The mantle is two thousand miles thick and makes up more than three-quarters of the Earth's volume.
The lower mantle is older and cooler than the upper mantle. Thank you for reading this I'm comment if you like one direction(: hehe
upper mantle and the lower mantle
99,877 km
The Earth's mantle is about 2,890 km (or 1,800 mi) thick.
2900 km
As measured by its thickness from upper boundary to lower boundary in a downward direction, the mantle is the thickest layer of the Earth.
It is 2,900 kilometers
The mesosphere
The middle mantle is just above the lower mantle.
The Lower Mantle
Earths mantle is less dense and very hot. The mantle is 2885km thick.
The lower mantle is beneath the crust.
410km
The upper mantle and the lower mantle.