What statement explains the relationship between convection current and plate movements?
In addition, convection currents occurs because the very hot material at the deepest part of the mantle rises, then cools, sinking again and heating, rising and repeating the cycle over and over again. Thus, all the motion caused by these actions causes plate tectonics to move.
When convection currents flow in the mantle What else do they move?
Convection currents within the mantle provide one potential driving force for plate movement. The plastic movement of the mantle material moves like the flow of mountain glaciers, carrying the lithospheric plates along as the convection movement in the mantle moves the asthenosphere.
What are the resisting forces to plate motion?
After subducted, cool, dense lithosphere sinks into the mantle under its own weight. This helps to pull the rest of the plate down with it. resisting forces The main effect of the underlying mantle is to produce a shearing or frictional force resisting the motion of lithospheric plates.
What are the two driving forces of plate motion?
The motion of tectonic plates is driven by convection in the mantle. In simple terms, convection is the idea that dense, cold things sink, and buoyant, warm things rise. In the earth the cold sinking things are slabs (subducting plates) and the warm things are plumes, or just rising material from deeper in the mantle.
How do driving forces affect plate movements?
Recent research has shown that the major driving force for most plate movement is slab pull, because the plates with more of their edges being subducted are the faster-moving ones. However, ridge push is also presented in recent research to be a force that drives the movement of plates.
What is the heat source of convection currents?
Magma in the Earth’s mantle moves in convection currents. The hot core heats the material above it, causing it to rise toward the crust, where it cools. The heat comes from the intense pressure on the rock, combined with the energy released from natural radioactive decay of elements.
What was the result of convectional currents?
a. Convectional currents impacts the earth’s crust , that cause tectonic plates to move. Large convection currents transfer heat causing divergent plate boundaries.