tension
Tension stretches or pulls apart the crust.
Contienental drift, which is when under the surface magma spreads apart and streches the crust apart.
it may be gravity
tension
Stress that acts to pull materials (including rocks of the crust) apart is known as tensile stress.
When a huge piece of crust diverges (pulls apart), the crust becomes fractured and magma spills out on the surface.
When a huge piece of crust diverges (pulls apart), the crust becomes fractured and magma spills out on the surface.
The force that pulls apart the crust is called tensional or extensional tectonic stress, which occurs at divergent plate boundaries where tectonic plates move away from each other. This pulling force can lead to the formation of rift valleys and mid-ocean ridges.
the type of stress that pulls the crust is called TENSION.
When there is a divergent boundary, regardless if the plates are ocean-ocean or continental-continental, tensional stress pulls on the crust. Rocks have weaker tensional strength than compressive strength, so they are easier to pull apart.
the type of stress that pulls the crust is called TENSION.
Tensile stress.