Is divergent boundary constructive or destructive?
In plate tectonics, a divergent boundary or divergent plate boundary (also known as a constructive boundary or an extensional boundary) is a linear feature that exists between two tectonic plates that are moving away from each other.
How are divergent boundaries constructive?
A divergent boundary, or constructive boundary, is where two sections of the eggshell – two tectonic plates – are moving away from each other. When this happens, they leave a gap in-between, and this gap can be filled by the magma from below. This creates a series of volcanoes all the way along the boundary.
What are constructive and destructive boundaries?
A constructive plate boundary occurs when two plates move away from each other. Find out more about constructive plate margins. A destructive plate boundary occurs when an oceanic plate is forced under (or subducts) a continental plate.
Why is a divergent boundary considered constructive?
Explanation: Constructive plate boundaries are when there are two plates moving apart from each other. They are called constructive plates because when they move apart, magma rises up in the gap- this forms volcanoes and eventually new crust.
Are convergent plate boundaries destructive?
A convergent boundary (also known as a destructive boundary) is an area on Earth where two or more lithospheric plates collide. One plate eventually slides beneath the other, a process known as subduction.
Which plate boundary is destructive?
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.
Why is divergent called constructive?
At divergent boundaries, sometimes called constructive boundaries, lithospheric plates move away from each other. There are two types of divergent boundaries, categorized by where they occur: continental rift zones and mid-ocean ridges. Continental rift zones occur in weak spots in the continental lithospheric plate.
What are divergent boundaries?
A divergent boundary occurs when two tectonic plates move away from each other. Along these boundaries, earthquakes are common and magma (molten rock) rises from the Earth's mantle to the surface, solidifying to create new oceanic crust.
Is convergent constructive or destructive Why?
Convergent boundaries are often called destructive boundaries because of the collision of two plates leading to subduction. The denser oceanic lithosphere subducts to the continental lithosphere causing a shift to the zone. This is where earthquakes originate.
Which plate boundary is constructive?
Constructive (tensional) plate margins occur where plates move apart. Examples below include the South American Plate and African Plate and the Eurasian Plate and North American Plate. Constructive boundaries are mainly located under the sea, e.g. the Mid Atlantic Ridge.
What is a divergent boundary?
A divergent boundary occurs when two tectonic plates move away from each other. Along these boundaries, earthquakes are common and magma (molten rock) rises from the Earth's mantle to the surface, solidifying to create new oceanic crust.
Where is a constructive plate boundary?
Constructive (tensional) plate margins occur where plates move apart. Examples below include the South American Plate and African Plate and the Eurasian Plate and North American Plate. Constructive boundaries are mainly located under the sea, e.g. the Mid Atlantic Ridge.
Why convergent boundary is destructive?
Convergent boundaries are often called destructive boundaries because of the collision of two plates leading to subduction. The denser oceanic lithosphere subducts to the continental lithosphere causing a shift to the zone. This is where earthquakes originate.
Which characteristics describe divergent boundaries?
Divergent plate boundaries are characterized by shallow earthquakes, volcanic eruptions, a high topographic ridge, and very young lithosphere.
What occurs at a divergent boundary?
Divergent boundaries. Divergent boundaries occur along spreading centers where plates are moving apart and new crust is created by magma pushing up from the mantle.