0
At constructive boundaries, magma from the earth's interior rises to the surface and forms mostly fissure volcanoes, but a few other tyopes as well, and forms new crust which pushes away older crust
At destructive boundaries, in a process called subduction, an oceanic plate slides into the earth's mantle, where it melts. The molten roick then rises to the surface and fornms a chain of volcanoes, mostly stratovolcanoes, but a few of other types as well
At constructive plate margins, tectonic plates move apart, creating space for magma to rise from the mantle. As the magma reaches the surface, it erupts and forms volcanic activity. Over time, repeated eruptions build up layers of volcanic material, leading to the formation of a volcano.
Add your answer:
Earn +20 pts
Why do volcanoes occur at constructive plate margins and subduction zones?
Volcanoes occur at constructive plate margins because as tectonic plates move apart, magma rises to the surface, creating new crust. In subduction zones, volcanoes form when one tectonic plate is forced beneath another, melting the crust and generating magma that erupts as volcanoes.
Did plate tectonics on Mars form the volcanoes on Mars?
No. Mars does not have plate tectonics. The volcanoes on Mars are the result of hot spots.
Where does cinder cone volcanoes form?
cinder cone volcanoes usually form around lithospheric plate boundaries.
Do plate movements help drive the rock cycle to form volcanoes?
Yes. Most volcanoes on Earth are associated with plate boundaries.
How does oceanic crust form at constructive plate margins?
Oceanic crust forms at constructive plate margins through seafloor spreading. Magma rises up from the mantle to fill the gap created as two tectonic plates move apart. This magma solidifies to create new oceanic crust. Over time, this process can lead to the formation of mid-ocean ridges.
Why do volcanoes occur at constructive plate margins and subduction zones?
Volcanoes occur at constructive plate margins because as tectonic plates move apart, magma rises to the surface, creating new crust. In subduction zones, volcanoes form when one tectonic plate is forced beneath another, melting the crust and generating magma that erupts as volcanoes.
Why can volcanoes be constructive and a destructive?
Volcanoes can be constructive when they form islands and mid-ocean ridges
What is the constructive uses of earthquake?
There are very few constructive uses for an earthquake. One use is that an earthquake allows plate margins to form, however the destruction clearly outweighs any advantages.
What is a continental arc system?
These arc systems form at collision plate margins where an oceanic plate is being subducted under a continental plate. As the oceanic plate melts, the magma rises and finds cracks in the continental plate above and creates volcanoes. These volcanoes occur all the way along this plate margin. For example the cascade volcanic arc on the north west coast of USA.
What type of boundary plates produce volcanoes?
convergence plate boundary, where tectonic plates move towards each other and collide, leading to subduction zones which are highly constructive regions of volcanoes. Volcanoes also form at divergent plate boundaries. A good example being the numerous Icelandic volcanoes which have formed over he Mid Atlantic Ridge.
Which type of plate margins commonly form valcanoes?
tectonic plates
What are two Ways volcanoes Form near converging plate boundaries?
Volcanoes may form where two oceanic plates collide or where an oceanic plate collides with a continental plate.
What plate process causes volcanoes to form at their boundaries?
the plate of your mom
Did plate tectonics on Mars form the volcanoes on Mars?
No. Mars does not have plate tectonics. The volcanoes on Mars are the result of hot spots.
What two plates are causing volcanoes to form?
what plate are causing your to to form
Where does cinder cone volcanoes form?
cinder cone volcanoes usually form around lithospheric plate boundaries.
Where in the world lava enters water?
Principally on constructive plate margins, from mantle magma welling up through the fracture to form a mid-ocean ridge such as the Mid-Atlantic / Reykjanes Ridges junction whose above-surface expression is Iceland.Also of course lava flows from coastal volcanoes - those these are often associated with mid-ocean ridges and intra-plate "hot-spots". (The latter concept is, I think, still a matter of debate.)
