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Volcanoes do not form in just any place. There are certain places on earth where they form.

Most volcanoes form at convergent boundaries. These boundaries are between two plates that move toward each other.

These boundaries are in form of trenches, ocean ridges and transform faults.

The area where many volcanoes have form is around the pacific plate. This area is called the Pacific Ring of Fire.

A volcano may also form at a divergent boundarywhere two plates move away from each other. When two plates pull apart, a long, deep crack called a rift is formed. Magma flows through the rift and builds up, resulting in the formation of volcanic islands.

Some volcanoes form far from the edges of a plate. The Hawaiian Islands which are volcanic islands are located in the middle of the pacific plate. Scientists believe that the islands sit on top of a hot spot under the Pacific Plate. A hot spot can melt rocks. Magma deep inside the earth flowed to the crust to form volcanoes. The volcanoes that rose above the ocean formed the Hawaiian Islands.

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14y ago
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16y ago

When the lava reaches the earth's surface it starts to cool and harden into rock. This happens every time the volcano erupts. Eventually the cooled down layers build up thus adding to the size of the volcano. To make it easier to understand, imagine grabbing a handful of sand and pouring it back onto the ground, grab another handful and pour it onto the existing mound, repeat this and then notice how it grows, this is the same principal as the volcano.

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13y ago

Volcanic mountains are formed by ___.

Lava

Gravity

Folding

Sliding

The awnser is Lava

You might want to double check it to see if it is correct if its not the right Qwestion or Awnser.

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12y ago

Volcanoes are usually formed as a result of a convergent boundary, where both plates are continental a divergent boundary, where at least one of the plates is oceanic a transform fault boundary, where both plates are oceanic a convergent boundary, where at least one of the plates is oceanic

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11y ago

Mountains are formed by plate tectonics colliding

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Q: Volcanoes usually formed as a result of?
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Related questions

Why are volcanoes usually near hills?

volcanoes are usually the mountains,the plate boundaries colliding depend on where the volcanoes are formed so they are not purposely always formed by mountains.


Volcanos are usually formed as a result of?

Most volcanoes form at plate boundaries where melting of rock occurs in the upper mantle either as a result of thinning crust reducing pressure or from the introduction of volatiles.


The Hawaiian volcanoes formed as a result of which of the following?

Hot spot ^_^


The hawaiia volcanoes formed as a result of?

They are formed in a very different way. Unlike usually Hawaii is on top of a "hotspot" or a very weak spot in the crust where the mantle breaks out, hardens and forms a volcano.


Rock formed in volcanoes?

Igneous rock is a result of cooled lava or magma.


What causes seamounts?

They are formed usually from extinct volcanoes


Volcanoes commonly form as a result of which two types of collisions?

Volcanoes are usually found where tectonic plates are converging or diverging.


How are fumaroles formed?

Fumaroles are formed only when steam and hot gases are expelled from small vents, usually found on volcanoes.


How was soil formed from rocks?

Soil is usually formed from the rock as a result of weathering of the rocks.


When are island arc volcanoes formed?

The island-arc volcanoes are formed from the subduction of an oceanic tectonic plate under another tectonic plate, and often parallel an oceanic trench.


How was Philippines formed?

it is said that Philippines was formed by volcanoes. it appears that the volcanoes underneath the ocean has the same core of the volcanoes found here in the Philippines


Can volcanoes form because of an earthquake?

Not really. Earthquakes can and do occur when a volcano is forming, but the volcano is not a result of an earthquake. Volcanoes are formed when magma (molten rock) within the earth's crust reaches the surface.