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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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JudyVolcanoes are usually formed as a result of tectonic plate movements causing magma to rise to the surface through weak points in the Earth's crust. This magma can then erupt, creating volcanic activity. Volcanoes can also form at hotspots or subduction zones where the Earth's crust is under pressure.
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.
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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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.
Rock formed in volcanoes?
Igneous rock is a result of cooled lava or magma.
Volcanos are usually formed as a result of?
Volcanoes are usually formed as a result of the movement of tectonic plates in the Earth's crust. When plates collide, one plate can be forced beneath the other, creating intense heat and pressure that leads to the melting of rock and the formation of magma chambers beneath the Earth's surface. Eventually, this magma rises to the surface, leading to volcanic eruptions.
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.
What types of volcanoes are formed at spreading centers?
Volcanoes at spreading centers is referred to as spreading center volcanism. This usually takes place on mid-oceanic ridges where the plates diverge.
