Volcanoes
A volcano is a specific type of mountain that forms at an opening in the Earth’s crust that matter from the Earth’s core are expelled from. This can be in the form of a gas, solid, or a liquid but it is typically expelled from the core at a very high heat (American geographical, Volcanoes and earthquakes). The matter that is expelled from a volcano when it erupts is called lava. This is how volcanoes are built up, by the cooling of these materials after they are expelled. “Volcanoes erupt because it is the Earth’s way of cooling and relieving the pressure of the buildup of magma under the Earth’s crust” (Oregon state university, Volcano world). Magma is what lava is called before it is expelled from the opening of the volcano. Magma rise to the surface of a volcano because it is not as dense as the interior surface of the volcano and it bubbles up. As the magma rises to closer and closer to the surface gas is dissolved in it which creates more pressure this is ultimately what causes the volcano to erupt (Oregon state university, Volcano world). When a volcano erupts it be a slow process where the lava flows slowly from the opening of the volcano or, depending on the amount of pressure built up into the magma before it erupts it can shoot up in the air and reach great heights (American geographical, Volcanoes and earthquakes). One of the most famous and deadliest volcanic eruptions was the eruption of Mount Vesuvius in Pompeii.
Click button below to learn more about Pompeii!
A volcano is a specific type of mountain that forms at an opening in the Earth’s crust that matter from the Earth’s core are expelled from. This can be in the form of a gas, solid, or a liquid but it is typically expelled from the core at a very high heat (American geographical, Volcanoes and earthquakes). The matter that is expelled from a volcano when it erupts is called lava. This is how volcanoes are built up, by the cooling of these materials after they are expelled. “Volcanoes erupt because it is the Earth’s way of cooling and relieving the pressure of the buildup of magma under the Earth’s crust” (Oregon state university, Volcano world). Magma is what lava is called before it is expelled from the opening of the volcano. Magma rise to the surface of a volcano because it is not as dense as the interior surface of the volcano and it bubbles up. As the magma rises to closer and closer to the surface gas is dissolved in it which creates more pressure this is ultimately what causes the volcano to erupt (Oregon state university, Volcano world). When a volcano erupts it be a slow process where the lava flows slowly from the opening of the volcano or, depending on the amount of pressure built up into the magma before it erupts it can shoot up in the air and reach great heights (American geographical, Volcanoes and earthquakes). One of the most famous and deadliest volcanic eruptions was the eruption of Mount Vesuvius in Pompeii.
Click button below to learn more about Pompeii!