What does the plate tectonics have to do with volcanoes?

Answer 1

Oceanic plates can be pushed under continental plates where heat and pressure can melt them and make magma push up and out as a volcano. Or two plates can move apart and magma will come up the fill the gap.
Volcanos are formed when magma is released from the Earth's mantle and erupts upward between the Earth's plates. There are many volcanos found along the boundaries of Earth's plates.

Answer 2

When plates move around on the Earth's surface, they bump into each other and grind past each other. When plates are grinding past each other they create friction and they catch each other. The plates are being forced to move so they stretch and pull the rocks on the surface. When the rocks reach their elastic limit, they break. (The elastic limit is the limit to which rocks can bend or stretch before they break) When the rocks break, they release all of the massive pressure that was building up and form vibrations. Now the vibrations can be big or small, and those vibrations cause big or small earthquakes. Now there are two kinds of plates, Continental and Oceanic. When plates bump into each other the more dense plate, usually the oceanic plate, will slide under the continental plate. The initial collision causes the surface rocks on the continental plate to bunch up and crush up forming cracked mountains. As the oceanic plate is sliding under the continental plate, water from the ocean gets pulled down with the plate into the mantle. The water then becomes water vapor. Magma in the Earth's mantle rises up to the surface of the continental plate and creates a chamber inside of the cracked mountains. The magma in the chamber will mix with the water vapor and create magma rich with silica and water vapor. The magma then erupts out of the mountain because of the gasses in the chamber forcing the magma upward, forming a volcano.

Answer 3

Volcanoes are formed by any of three different geologic processes:

The first one, which has little to nothing to do with plate tectonics, is the presence of a "hot spot". A "hot spot" is a specific area below the earth's crust in which there is an abnormally high pressure of magma (underground molten rock). This causes the magma to basically burn/melt through the overlaying crust until it reaches the surface, which forms a volcano. Volcanoes of this type exist in Hawaii and Yellowstone Park.

The second and third processes, however, have just about everything to do with plate tectonics. The second process is due to the effects associated with destructive plate boundaries. When one plate is forcibly subducted under another, it melts and forms a large volume of low-density magma which exerts a large underground pressure under the overlaying plate. This, like in the previous process, causes the underground magma to burn/melt the overlaying plate until it reaches the surface and forms a volcano. Volcanoes of this type include just about all of the volcanoes in the western South American coast.

The third process by which a volcano is formed is by a divergent (or constructive) plate boundary. In this case, two adjacent tectonic plates move away from each other, forming a "gap" between both plates. Since all the tectonic plates float on a large mass of magma, also known as the asthenosphere, which covers the Earth below the crust, when two tectonic plates separate, magma flows upwards through the gap between them and forms new crust. If the pressure with which the magma which flows upwards is very large, it will also form volcanoes right over the limit between the divergent plates. Volcanoes of this type include all those in Iceland. Note that the entire island of Iceland was actually formed from the magma rising from the gap between two underwater tectonic plates.

Answer 4

yes, actually there is. When tectonic plates move the can create opening and hill. When these hills form magma from the earth's core runs up threw it creating volcanoes.

Answer 5

Volcanoes are related to plate tectonics in the sense that mountains and volcanoes are created when the tectonic plates hit each other as the oceanic crust sinks into the mantle.