What is the difference between constructive and destructive plate boundary?

They are called constructive plates because when they move apart, magma rises up in the gap- this forms volcanoes and eventually new crust. One example is the Mid-Atlantic Ridge, where the gap can be found in Thingvellir, Iceland. Destructive plate boundaries are when oceanic and continental plates move together.

What is the difference between a convergent and destructive plate boundary?

A destructive plate boundary is sometimes called a convergent or tensional plate margin. This occurs when oceanic and continental plates move together. The oceanic plate is forced under the lighter continental plate. Friction causes melting of the oceanic plate and may trigger earthquakes.

What is constructive plate boundary?

At constructive plate boundaries, also known as divergent boundaries, tectonic plates move away from one another to produce volcanoes. Hot magma rises from the mantle at mid-ocean ridges, pushing the plates apart.

What is a destructive boundary?

At a destructive plate boundary (also called convergent boundaries) two plates move towards another. One plate is then pushed underneath the other. (It is the heavier plate that is forced beneath the lighter plate). The point at which one plate is forced beneath the other is called the subduction zone.

What type of plate boundary is destructive?

Convergent plate boundaries

Convergent plate boundaries
A convergent plate boundary also known as a destructive plate boundary , usually involves an oceanic plate and a continental plate. The plates move towards one another and this movement can cause earthquakes and volcanoes.

What do destructive plate boundaries cause?

A destructive plate boundary happens where an oceanic and continental plate move towards each other. The heavier, more dense oceanic plate is forced under the continental plate. As it sinks below the continental plate the oceanic plate melts due to friction in the subduction zone. The crust becomes molten called magma.

Where are destructive plate boundaries found?

Destructive plate margins occur where an oceanic and continental plate move towards each other. Examples below include the Pacific Plate and Eurasian Plate and the Nazca Plate and the South American Plate.

Do constructive plate boundaries cause earthquakes?

At a constructive plate boundary – also known as a divergent plate boundary – the plates are moving apart from one another. When this happens, the magma from the mantle rises up to make (or construct) a new crust. The movement of the plates over the mantle can cause earthquakes.

Why are destructive margins called destructive margins?

These margins are called “destructive margins” since crust gets destroyed as the plates collide. If two continental plates collide then the crust ruptures and crumples up forming a mountain range such as the Himalayas (which are forming as the Indian plate slowly crashes into the Eurasian plate.)

How volcanoes are formed in a destructive and constructive plate boundaries?

This happens because the oceanic plate is denser (heavier) than the continental plate. When the plate sinks into the mantle it melts to form magma. The pressure of the magma builds up beneath the Earth’s surface. The magma escapes through weaknesses in the rock and rises up through a composite volcano.

What landforms are created at destructive plate boundaries?

Landforms associated with destructive plate boundaries

Is a rift constructive or destructive?

Where a constructive margin occurs on land it creates a rift valley. As the crust tears apart, sections of land drop and create deep rift valleys.

Are ocean trenches constructive or destructive?

Ocean Trenches are deep water areas that run along a coastline which has a destructive plate margin. They are created by subduction, and mark the point where the Oceanic crust is being pushed under the Oceanic crust.