The lithosphere is the solid, outer layer of the Earth, and it is around 100 kilometers thick. It consists of the brittle upper portion of the crust and mantle. It is divided into huge sections called tectonic plates, on... More »

The geosphere refers to the solid parts of our planet. It is the portion of the Earth’s internal system that includes rocks, minerals, landforms and the general processes that shape our planet’s surface. Geodesy, which i... More »

The mantle is the largest of the geological layers that make up the Earth. It is found beneath the crust and is about 1,800 miles thick. Surrounding the core, the mantle makes up about 84 percent of the volume of the Ear... More »

The Earth's crust, which is Earth's outermost layer, is a thin layer. Comprised of two kinds of crusts, continental and oceanic crusts, it is merely 0.473 percent of Earth's mass. The ocean crust's thickness is around 7 ... More »

The crust and upper mantle of the Earth form the lithosphere. The lithosphere is about 62 miles thick. The part of the lithosphere that supports the continents is thicker than the part of the lithosphere that supports th... More »

The crust, the outermost layer or surface layer, is the thinnest layer of Earth. In addition to being thin, the crust layer has the most variance when it comes to thickness. This diverse layer mostly ranges from 5km to 3... More »

The asthenosphere is a layer of the Earth's interior that includes part of the lower crust and part of the mantle. The upper boundary of the asthenosphere is roughly 50 miles below the ground's surface. Its lower boundar... More »