What is a subduction zone answer?
Where two tectonic plates converge, if one or both of the plates is oceanic lithosphere, a subduction zone will form. An oceanic plate will sink back into the mantle.
What is a subduction simple definition?
Definition of subduction : the action or process in plate tectonics of the edge of one crustal plate descending below the edge of another.
Where is a subduction zone?
Subduction zones are where the cold oceanic lithosphere sinks back into the mantle and is recycled. They are found at convergent plate boundaries, where the oceanic lithosphere of one plate converges with the less dense lithosphere of another plate.
What is a subduction zone and how does it form?
When an oceanic plate collides with a continental plate, the oceanic plate (being heavier) bends and slides beneath the continental plate. When this plate is forced to bend downwards, the process is called subduction. The process of subduction results in the formation of a zone called a subduction zone.
What is a subduction zone quizlet?
Subduction Zone. The region where an oceanic plate sinks down into the asthenosphere at a convergent boundary, between continental and oceanic plates.
What is subduction quizlet?
subduction. The process by which oceanic crust sinks beneath a deep-ocean trench and back into the mantle at a convergent plate boundary.
What happens in the subduction zone?
Subduction zones are plate tectonic boundaries where two plates converge, and one plate is thrust beneath the other. This process results in geohazards, such as earthquakes and volcanoes.
What happens at a subduction zone boundary?
A subduction zone is where two plates collide and become sandwiched on top of each other. The collision can be so violent that the material from the two plates is broken down and merged together to form mountains, as is the case for two continental plates. There are two types of plates: continental and oceanic.
What type of plate boundary has a subduction zone?
Convergent Plate Boundaries
Convergent Plate Boundaries—Subduction Zones.
What landforms are created at subduction zones?
Various formations such as mountain ranges, islands, and trenches are caused by subduction and the volcanoes and earthquakes it triggers. In addition to causing earthquakes, subduction can also trigger tsunamis.
What type of volcanoes are created in a subduction zone?
Stratovolcanoes tend to form at subduction zones, or convergent plate margins, where an oceanic plate slides beneath a continental plate and contributes to the rise of magma to the surface.
Why are subduction zones important?
The geologic activity at subduction zones is enormously beneficial to all mankind. Dry land exists only because of subduction. Continents are born from the destruction of oceanic crust. The magma produced at subduction zones hardens into granite, the bedrock of all the continents.