SOLAR SYSTEM

Detailed explanation-1: -Mechanically, the Earth’s layers are divided into lithosphere, asthenosphere, mesospheric mantle (it is part of the Earth’s mantle present below the lithosphere and the asthenosphere), outer core, and inner core .

Detailed explanation-2: -asthenosphere, zone of Earth’s mantle lying beneath the lithosphere and believed to be much hotter and more fluid than the lithosphere. The asthenosphere extends from about 100 km (60 miles) to about 700 km (450 miles) below Earth’s surface.

Detailed explanation-3: -The mantle lies below the crust and is up to 2900 km thick. It consists of hot, dense, iron and magnesium-rich solid rock. The crust and the upper part of the mantle make up the lithosphere, which is broken into plates, both large and small. To learn more about these plates see the Plate Tectonics page.

Detailed explanation-4: -The asthenosphere is almost solid, but a slight amount of melting (less than 0.1% of the rock) contributes to its mechanical weakness. More extensive decompression melting of the asthenosphere takes place where it wells upwards, and this is the most important source of magma on Earth.

Detailed explanation-5: -As part of the mantle, the asthenosphere is composed primarily of magnesium and iron, with some silicon. Though the upper and lower mantle have the same chemical composition, they have different physical characteristics due to changes in temperature.

Detailed explanation-6: -These five layers are the: Lithosphere, Asthenosphere, Mesosphere, Outer Core, and Inner Core.