it's 410km to 660km thick
2900 km thick
lithosphere
The upper mantle
The asthenosphere is typically around 100-200 kilometers thick beneath the Earth's crust. It is a semi-fluid layer of the upper mantle that allows for the movement of tectonic plates.
The thick shell that surrounds the Earth's core and lies beneath the crust is called the mantle. It extends to a depth of about 2,900 kilometers (1,800 miles) and is composed of solid rock that can flow slowly over geological time. The mantle is divided into the upper mantle and the lower mantle, with the upper part being more plastic and allowing for tectonic plate movement. This layer plays a crucial role in the dynamics of plate tectonics and the Earth's geology.
it's 410km to 660km thick
about 20 inches
about 20 inches
In oceanic areas the upper mantle is usually 5-200km thick and on continental areas it is 75-300km deep.
2900 km thick
The thickness of the Earth's mantle is about 2900 km and it's upper boundary is about 100km deep. There is a really cool cutaway drawing available by using the Wikipedia link.
The lithosphere, which includes the crust and upper part of the mantle, is typically around 100 kilometers thick beneath the oceans and up to 200 kilometers thick beneath the continents.
The outer core of the mantle can be liquid.
upper mantle
The main difference between the upper and lower mantle is their depth within the Earth. The upper mantle is located closer to the Earth's surface, extending from the crust to a depth of about 410-660 km, while the lower mantle lies beneath the upper mantle, extending from around 660-2,891 km deep. Additionally, the upper mantle is more rigid and composed of mainly solid rock, while the lower mantle experiences higher pressures and temperatures, leading to more plastic behavior.
This layer is about 163 miles thick below the earth.
The lower mantle is approximately 2,900 kilometers thick and extends from a depth of around 660 kilometers to 2,900 kilometers beneath the Earth's surface. It is composed mainly of solid rock that exhibits solid-state flow over geological timescales.