GEOLOGY

Detailed explanation-1: -The very slow motion of lithospheric plates “floating” on the asthenosphere is the cause of plate tectonics, a process associated with continental drift, earthquakes, the formation of mountains, and volcanoes. In fact, the lava that erupts from volcanic fissures is actually the asthenosphere itself, melted into magma.

Detailed explanation-2: -The Mantle This layer of rock even flows like asphalt under a heavy weight. This flow is due to great temperature differences from the bottom to the top of the mantle. The movement of the mantle is the reason that the plates of the Earth move!

Detailed explanation-3: -Scientists believe that below the lithosphere is a relatively narrow, mobile zone in the mantle called the asthenosphere (from asthenes, Greek for weak). This zone is composed of hot, semi-solid material, which can soften and flow after being subjected to high temperature and pressure over geologic time.

Detailed explanation-4: -The asthenosphere is the layer beneath the lithosphere. The asthenosphere is a plastic, solid layer of the mantle made of rock that flows very slowly and allows tec-tonic plates to move on top of it.

Detailed explanation-5: -Heat from the core drives a slow churning motion of the mantle’s solid silicate rocks, like slow-boiling fudge on a stove burner. This conveyor-belt motion causes the crust’s tectonic plates at the surface to jostle against each other, a process that has continued for at least half of Earth’s 4.5 billion-year history.