The layers can also be categorized into the rigid outer lithosphere (which includes the crust and top portion of the mantle and makes up Earth's tectonic plates) and the athenosphere, the portion ...

It basically states that Earth’s outer shell, or lithosphere, is divided into large, rigid plates that float and move on the ...

Deep beneath California's Sierra Nevada mountains, geologists have found evidence of Earth's rigid outer layer sinking into ...

The processes that form continental crust from the denser basaltic rocks of the upper mantle may make the lower lithosphere ...