Lithosphere: Learn about the lithosphere

Learn about the lithosphere , the outermost solid layer of the Earth, and its two types: oceanic and continental. Find out how it is composed of crust and mantle, and how it moves due to plate tectonics. Lithosphere, rigid, rocky outer layer of Earth , consisting of the crust and the solid outermost layer of the upper mantle. It extends to a depth of about 60 miles (100 km). The lithosphere is broken up into about a dozen separate, rigid blocks, or plates. Learn what lithosphere is, how it is composed of crust and upper mantle, and what are the two types of lithosphere : oceanic and continental. Find out how lithosphere interacts with atmosphere, hydrosphere, and biosphere through pedosphere.