What is a slab pull simple definition?
Slab Pull: The force exerted by the weight of the subducted slab on the plate it is attached to. Ridge Push: The pressure exerted by the excess height of the mid-ocean ridge.
What does the slab pull do?
Slab pull is the stronger force acting on plate tectonic motion, contributing 90-95% of the energy driving the movement of the subducted plate. The gravity acting on the greater density and inertia of an oceanic plate pulls it and subducts it beneath a less dense continental plate along a convergent boundary.
What is slab pull in geography?
Slab pull is the pulling force exerted by a cold, dense oceanic plate plunging into the mantle due to its own weight. The theory is that because the oceanic plate is denser than the hotter mantle beneath it, this contrast in density causes the plate to sink into the mantle.
What is the slab pull force?
slab pull: the force due to the weight of the cold, dense sinking tectonic plate. ridge push: the force due to the buoyancy of the hot mantle rising to the surface beneath the ridge. viscous drag: the force opposing motion of the plate and slab past the viscous mantle underneath or on the side.
What is an example of slab pull?
The subducting slabs around the Pacific Ring of Fire cool down the Earth and its core-mantle boundary. Around the African Plate upwelling mantle plumes from the core-mantle boundary produce rifting including the African and Ethiopian rift valleys.
Where do slab pull occur?
Slab pull occurs at a convergent boundary and subduction zone. The force of the dense oceanic plate subducting under the continental plate and gravitationally being pulled into the mantle results in the rest of the plate being pulled along with it.
What is slab pull GCSE?
Ridge push –magma rises as the plates move apart. The magma cools to form new plate material. As it cools It becomes denser and slides down away from the ridge. This causes other plates to move away from each other. Slab pull – The denser plate sinks back into the mantle under the influence of gravity.
Where is slab pull located?
12:1114:08Ridge Push:Slab Pull – YouTubeYouTube
What is difference between ridge push and slab pull?
'Ridge Push' and 'Slab Pull' are thought to be the major forces driving the motion of oceanic plates. Ridge push is caused by the potential energy gradient from the high topography of the ridges. Slab pull is caused by the negative buoyancy of the subducting plate.
What is slab pull quizlet?
Slab pull. The process that results when a dense oceanic plate sinks beneath a more buoyant plate along a subduction zone, pulling the rest of the plate that trails behind it. convection.
What’s the difference between ridge push and slab pull?
'Ridge Push' and 'Slab Pull' are thought to be the major forces driving the motion of oceanic plates. Ridge push is caused by the potential energy gradient from the high topography of the ridges. Slab pull is caused by the negative buoyancy of the subducting plate.
Who discovered slab pull?
Slab pull is that part of the motion of a tectonic plate caused by its subduction. In 1975 Forsyth and Uyeda used the inverse theory method to show that, of the many forces likely to be driving plate motion, slab pull was the strongest.
What best describe slab pull theory?
Slab pull is that part of the motion of a tectonic plate caused by its subduction. In 1975 Forsyth and Uyeda used the inverse theory method to show that, of the many forces likely to be driving plate motion, slab pull was the strongest.
Is ridge push stronger than slab pull?
According to Stefanick and Jurdy, the ridge push force acting on the South American plate is approximately 5 times the slab pull forces acting at its subducting margins because of the small size of the subducting slabs at the Scotia and Caribbean margins.
What is ridge push and slab pull quizlet?
The process that results when magma rises at a mid-ocean ridge and pushes oceanic plates in two different directions away from the ridge. Slab pull. The process that results when a dense oceanic plate sinks beneath a more buoyant plate along a subduction zone, pulling the rest of the plate that trails behind it.
Which of the following are characteristics of a slab pull?
The following are characteristics of slab pull: Subducting plates move faster than non-subducting plates. Gravity is a major force in slab pull. Subducting oceanic lithosphere is denser than asthenosphere.
What is an example of a slab push structure?
What is "slab-push"? Give one example of a slab-push structure. ANSWER: It is a plate tectonics's movement. Earth's tectonic plates are rigid slab's of rock.
What is the difference between a ridge push and a slab pull?
'Ridge Push' and 'Slab Pull' are thought to be the major forces driving the motion of oceanic plates. Ridge push is caused by the potential energy gradient from the high topography of the ridges. Slab pull is caused by the negative buoyancy of the subducting plate.
What is ridge push slab pull?
'Ridge Push' and 'Slab Pull' are thought to be the major forces driving the motion of oceanic plates. Ridge push is caused by the potential energy gradient from the high topography of the ridges. Slab pull is caused by the negative buoyancy of the subducting plate.
What is ridge push and gravity pull?
Ridge push (also known as gravitational sliding) or sliding plate force is a proposed driving force for plate motion in plate tectonics that occurs at mid-ocean ridges as the result of the rigid lithosphere sliding down the hot, raised asthenosphere below mid-ocean ridges.
What is the difference of ridge push and slab pull?
'Ridge Push' and 'Slab Pull' are thought to be the major forces driving the motion of oceanic plates. Ridge push is caused by the potential energy gradient from the high topography of the ridges. Slab pull is caused by the negative buoyancy of the subducting plate.
How does slab pull effect plate movement?
"slab pull" As lithospheric plates move away from midocean ridges they cool and become denser. They eventually become more dense than the underlying hot mantle. 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.
What type of plate boundary is slab pull?
Slab pull is the force exerted by a dense oceanic plate sinking into the mantle at a convergent plate boundary.
What is ridge push explanation?
Ridge push (also known as gravitational sliding) or sliding plate force is a proposed driving force for plate motion in plate tectonics that occurs at mid-ocean ridges as the result of the rigid lithosphere sliding down the hot, raised asthenosphere below mid-ocean ridges.
What is difference between slab pull and ridge push?
'Ridge Push' and 'Slab Pull' are thought to be the major forces driving the motion of oceanic plates. Ridge push is caused by the potential energy gradient from the high topography of the ridges. Slab pull is caused by the negative buoyancy of the subducting plate.
What is the difference of ridge push and Slab Pull?
'Ridge Push' and 'Slab Pull' are thought to be the major forces driving the motion of oceanic plates. Ridge push is caused by the potential energy gradient from the high topography of the ridges. Slab pull is caused by the negative buoyancy of the subducting plate.
What type of plate boundary is Slab Pull?
Slab pull is the force exerted by a dense oceanic plate sinking into the mantle at a convergent plate boundary.