What Is The Driving Force Of Plate Tectonics

Heat and convection b.

As the plate sinks into the mantle it acts to pull the rest of the plate behind it. Temperature and continental drift. Gravity and mantle convection are two driving forces for the movement of plates. The subducting plate usually basalt is denser than the material it is subducting into purely due to its difference in temperature.

Convection in the mantle heat driven ridge push gravitational force at the spreading ridges slab pull gravitational force in subduction zones related animations. Temperature and continental drift weegy. For a deeper discussion of plate driving mechanisms see plate driving mechanisms and the role of the mantle. The origins of plate tectonic theory.

Heat and convection b. If a plate with oceanic lithosphere meets another plate the dense oceanic lithosphere dives beneath the other plate and sinks into the mantle. The process of plate tectonics may be driven by convection in earth s mantle the pull of heavy old pieces of crust into the mantle or some combination of both. The forces that drive plate tectonics include.

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Continental drift and convection d. The upper plastic like part of earth that the plates ride on is called the. This process is called subduction. The main driving force of plate tectonics is gravity.

Driving forces related to mantle dynamics for much of the last quarter century the leading theory of the driving force behind tectonic plate motions envisaged large scale convection currents in the upper mantle which are transmitted through the asthenosphere. Continental drift and convection d. In short the driving forces advocated at the moment can be divided into three categories based on the relationship to the movement. What are the driving forces behind plate tectonics.

People often use the terms crust and tectonic plates interchangeably. Heat and convection are the driving forces behind plate tectonics. Heat and continental drift c. Because of their integral relationship to the present motion of plates the magnitude and direction of tectonic stress is very difficult to predict unless we can measure recent tectonic movement or seismic activity.

Heat and continental drift c. Mantle dynamics related gravity related mostly secondary forces and earth rotation related. This force occurs as a subducting plate sinks into the hot mantle beneath it. The sinking oceanic lithosphere drags the rest of the tectonic plate and this is the main cause of plate motion.