Volcano

megalodon

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Jun 3, 2020
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A Volcano is a rupture on the surface of the Earth (or some other planet), which serves as a vent to allow hot lava, volcanic ash and gases to escape from the subsurface magma chamber. The volcanoes occur on Earth due to plate tectonics. As the crust is broken into 17 major, rigid tectonic plates that float on a hotter layer in the mantle, the magma finds opportunity to escape to the surface where the tectonic plates are diverging or converging. Apart from them, volcanism occurs near mantle plumes which are direct vents for magma like hot water springs.

Introduction
The geologic architects of the earth mainly made from volcanoes. more than 80 percent of our earth’s surface created from volcanoes. Some 1500 volcanoes are active around the world. 161 of those-which are 10 percent-within the United States boundary. volcanoes on every continent, even Antarctica.

How do volcanoes form?
Majority of volcanoes form along plate boundaries. volcanoes are forms when plates move apart (divergent boundary) or subduct (subduction zone) to each other.

What are the different stages of volcanoes?
There are three main categories of volcanoes scientists have categorized:
  • Active volcano: Which is active or soon erupt in the future.
  • Dormant volcano: which erupt in past but it is no longer erupting
  • Extinct volcano: which not erupting and never erupt again.
What is a volcanic eruption?
Volcanic eruption happens when magma discharge from a volcano.

There are different types of volcanic eruptive events, including:
  • Pyroclastic explosions, fast-moving hot gas, and volcanic matter.
  • Hot ash releases.
  • Lava flows.
  • Gas emissions.
  • Glowing avalanches, when gas and ashes release.
The most dangerous are pyroclastic flows, avalanches of hot rocks, ash, and toxic gas that race down slopes at speeds as high as 450 miles an hour.

How do volcanoes erupt?
The geologic architects of the earth mainly made from volcanoes. more than 80 percent of our earth’s surface created from volcanoes.

Some 1500 volcanoes are active around the world. 161 of those-which are 10 percent-within the United States boundary. volcanoes on every continent, even Antarctica.



Rocks melt when a plate pulling apart or when one plate pushing down to another and form thick flowing material called magma. Magma is lighter than its surrounding solid rocks, so magma rises in the Magma chamber. Sometimes magma pushes through the vent to the surface of the earth. when magma erupts it’s called lava.
 

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