Mechanism of Volcanic Eruption
Different layers of the Earth’s mantle within the crust are divided based on unique seismology. These include the lower mantle, which is located between 660 and 2891 km, the transition zone, which is located between 400 and 660 km, and the upper mantle, which is located between 8 and 35 km to 410 km. Between the crust and the mantle, the environment drastically changes.
- Some rocks slowly melt due to the extreme heat deep within the earth, transforming into a thick, flowing substance called lava. Lava rises to the surface and gathers in magma chambers because it is lighter than solid rock. Both the temperature and pressure increase significantly, reaching up to 1000℃. Within the Earth’s crust, this molten, viscous rock gathers into huge chambers.
- Magma searches for fissures and weaknesses in the mantle because it is lighter than the surrounding rock and rises toward the surface. Some magma eventually finds its way through surface cracks and vents. Thus, there is a volcanic explosion, and the lava that is released is the resulting magma.
- When it eventually reaches the surface of a volcano, it blasts from the peak. The molten rock is called magma when it is below the surface and explodes as ash when it rises. With each eruption, ash, lava, and rocks are deposited across the volcanic vent. The viscosity of the magma mostly determines the type of eruption. When the lava flows quickly, it spreads far and forms wide shield volcanoes. It takes on the characteristic shape of a cone volcano when it gets too thick. Lava domes are created when exceptionally thick lava builds up inside a volcano and explodes.
Volcano Eruption
A Volcanic Eruption is the release of hot gases, molten rock, and hot rock fragments through a volcano. A volcano is a vent in the crust of a planet or satellite. Volcanic eruptions can result in catastrophic property and human loss. Volcanic eruptions might even be almost harmless, like most volcanoes in Hawaii. They can also be extremely devastating, as when Pompeii was destroyed by Vesuvius’ explosion in 79 CE. In this article, we will look into the definition, causes, types, and effects of volcanic eruptions. We will also explore the recent volcano eruptions.
Table of Content
- What is Volcanic Eruption?
- Mechanism of Volcanic Eruption
- Volcanic Eruption Example
- Volcanic Eruption Types
- Causes of Volcanic Eruption
- Volcanic Eruption Effects
- Volcanic Eruption in Iceland
- Volcanic Eruption Japan
- Volcanic Eruption in India
- Volcano Eruption 2023
- Conclusion