What is a ridge push and Slab Pull?
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 is ridge push for kids?
Ridge push is the result of gravitational forces acting on the young, raised oceanic lithosphere around mid-ocean ridges, causing it to slide down the similarly raised but weaker asthenosphere and push on lithospheric material farther from the ridges.
What is Slab Pull for kids?
The weight of the subducted slab may drag the rest of the tectonic plate toward the trench, a process known as slab pull, much as a tablecloth will pull itself off a table if more than half of the cloth is draped over the table’s edge.
What are the 3 mechanisms of plate movement?
The forces that drive Plate Tectonics include: Convection in the Mantle (heat driven) Ridge push (gravitational force at the spreading ridges) Slab pull (gravitational force in subduction zones)
What is a ridge push simple definition?
Gravitational force that causes a plate to move away from the crest of an ocean ridge, and into a subduction zone. It works together with Slab Pull, but is much less significant.
What is an example of ridge push?
(the Mid-Atlantic Ridge), known as ridge push, in the Atlantic Ocean. This push is caused by gravitational force, and it exists because the ridge occurs at a higher elevation than the rest of the ocean floor.
What is ridge push simple?
What is the difference between ridge pull and slab pull?
What are the 3 main types of plate boundaries?
Divergent boundaries — where new crust is generated as the plates pull away from each other. Convergent boundaries — where crust is destroyed as one plate dives under another. Transform boundaries — where crust is neither produced nor destroyed as the plates slide horizontally past each other.
What is slab pull process?
“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 is Slab Pull process?
What is the process of slab pull?
What is Slab Pull? 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 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.
What are the 4 types of plate movements and describe them?
There are four types of boundaries between tectonic plates that are defined by the movement of the plates: divergent and convergent boundaries, transform fault boundaries, and plate boundary zones. Microplates are smaller fragments of tectonic plates that appear in plate boundary zones.
What are the 4 tectonic movements?
What are the major plate tectonic boundaries?
- Divergent: extensional; the plates move apart. Spreading ridges, basin-range.
- Convergent: compressional; plates move toward each other. Includes: Subduction zones and mountain building.
- Transform: shearing; plates slide past each other. Strike-slip motion.
What is ridge push explanation?
What is the 3 types of plate boundaries?
Movement in narrow zones along plate boundaries causes most earthquakes. Most seismic activity occurs at three types of plate boundaries—divergent, convergent, and transform.
What are the 3 plate boundaries and describe them?
The movement of the plates creates three types of tectonic boundaries: convergent, where plates move into one another; divergent, where plates move apart; and transform, where plates move sideways in relation to each other. They move at a rate of one to two inches (three to five centimeters) per year.
What are 4 types of plate boundaries?
What are the 4 ways tectonic plates move?
The flow of the mantle causes tectonic plates to move in different directions. When the edges of plates meet, four things can happen:
- slip. play. two plates slide. past each other.
- collision. play. two plates crash. and fold up.
- spreading. play. two plates move apart. from each other.
- subduction. play. one plate sinks. below the other.
What are the 4 plate movements?
Plate Boundaries: Convergent, Divergent, Transform.
What are 5 facts about plate tectonics?
Tectonic Plate Facts for Kids
- There are seven major tectonic plates.
- There are 3 types of tectonic plate movement Divergent, Convergent, and Transform.
- Juan de Fuca Plate is the smallest of Earth’s tectonic plates.
- Tectonic plates moving can cause tsunamis, earthquakes, and volcanoes.
What are the 3 types of plate boundaries explain each?
What are 3 main types of plate boundaries?
What are the 3 types of boundaries?
There are three kinds of plate tectonic boundaries: divergent, convergent, and transform plate boundaries. This image shows the three main types of plate boundaries: divergent, convergent, and transform.