Wait a second!
More handpicked essays just for you.
More handpicked essays just for you.
Types of volcanoes
Don’t take our word for it - see why 10 million students trust us with their essay needs.
Recommended: Types of volcanoes
A volcano is a mountain or hill, which has a vent where lava, broken pieces of rock, hot vapor, and gases are being erupted from beneath the Earth’s crust. It is unknown where the first volcano was located; however, the first one recorded was Mount Vesuvius in Naples, Italy.
The ash and rock from that particular eruption engulfed Pompeii, making it hard to breath. Eventually, the ash was turned to mud from the rainfall, which soon buried it. It was said that some people were able to successfully use cloth as a filter for the unclean air around them.
The process of forming volcanoes is quite simple. Over time, many parts of a volcano such as a sill and summit form on top of one another. All the while, magma from the underground reservoir builds up and eventually makes it's way through the throat of the volcano up to the surface, which is called an eruption. Once magma reaches the surface it is considered lava ("How do volcanoes form?"). Magma can come in different forms. These can range from basalt that is very fluid to andesite that has more resistance, or viscosity ("Volcanoes - Me...
On the afternoon of 24th August 79 AD, a volcano called Mt. Vesuvius erupted, which resulted in destroyed lives of citizens, it was estimated that there were 10 to 12 thousand people who occupied the city .The cities of Pompeii, Herculaneum and a few others were severely affected by the eruption. The cities are well known for its beautiful landscapes and its temperate climate.Pompeii is based in the south, close to Naples in the region of Campania in Italy.The eruption started a series of events such as pumice,rocks and ashes falling down and caused hot volcanic gases to rise high in the sky, people from around 100 miles away could see the event unfolding.The remains of Pompeii and other cities was frozen in time due to the pyroclastic surges
As Kohala Volcano emerged from the sea and joined with Mahukona, a much larger Big Island began forming. With continued movement of the Pacific Plate, the center of volcanism migrated on to Mauna Kea and Hualalai, the middle-aged volcanoes, and finally on to Mauna Loa and Kilauea, which are the youngest volcanoes on the island. Over the geologically short time of several hundred thousand years, these volcanoes erupted thousands of thin flows which spread over, and built upon, older flows; each volcano growing until it finally emerged from the sea. As time went on, lava flows from one volcano began to overlap flows from other, nearby volcanoes and eventually the peaks coalesced into a single island, the Big Island. In geologically recent times, a new volcano, Loihi, began forming about 18 miles off the southeast coast of the Big Island.
Basalt forms due to the partial melting of the layer of the mantle called the asthenosphere. The asthenosphere is the plastic zone of the mantle beneath the rigid lithosphere. Mantle plumes coming from the mesosphere can cause the asthenosphere to melt with heat or even if pressure decreases, which is called decompression melting (Richard 2011). The magma that forms from this melting is mafic magma that solidifies once it reaches the earth’s surface and cools quickly. The above process mainly occurs mainly during intraplate igneous activity which is the main explanation for volcanic activity that occurs a long distance away from a plate boundary. If the tectonic plate above the mantle plume is moving it can create a string of volcanic activity such as in Hawaii. See Fig 2.
Volcanoes. The naturally forming landforms that can look remarkably beautiful. Gentle slopes, or high rising heights with snow caps and greenery that seems to attract many tourists and sightseers around the world. These magnificent landforms can also cause major destruction and can produce forces that can explode, burn, and create a great deal of damage. Two of these extravagant wonders of the world is the Mount Saint Helens composite volcano in Washington, US, and the Mauna Loa shield volcano in Hawaii, US. These landforms have a eruption history of many colors. One has a great power in eruption, but another has a eruption that is quiet and gentle. In comparing these two volcanoes there are many likes, and dislikes, to consider. So the following
Stories about volcanoes are captivating. Myths come in different versions, but all of them are capable of capturing yours, and everybody’s imagination.
Pompeii was destroyed in 79 A. D. When the eruption of Mount Vesuvius started, 1.5 million tons of ash rock shot out Mount Vesuvius every second. After the eruption was over, Pompeii was buried in volcanic ash. Pompeii was just recovering from an earthquake in 62 A. D. The people in Pompeii were not ready for both events. Sixteen thousand people died when Mount Vesuvius’ eruption was over. (“Ancient Rome for Kids: The City of Pompeii;” Bagley).
Super volcanoes are formed when magma rises from the mantle to create a scorching reservoir in the Earth's
Magma is a hot liquid made of melted minerals. Minerals can form crystals when they are cool. Igneous rock can form underground, where the magma cools. slowly. Or, igneous rock can form above ground, where the magma cools.
Volcanoes are one of natures most interesting and dangerous phenomenons. The way volcanoes operate can be understood, on a basic level, by just some simple physics and chemistry, this paper will investigate and explain some of the basic physics that govern the behavior of volcanoes.
Convection currents deep in the mantle of the earth, begin to well up towards the surface. As the pressure increases, it sets the crustal plates in motion. There are different kinds of mountains - Volcanic, Folded, Fault-block, and Dome mountains. Volcanic mountains are formed when magma comes up through cracks in the Earth’s crust and explodes out of lava and ash. The Hawaiian volcanoes, Mt. Hood, Mt. Etna, Vesuvius, and Mt. Saint Helens is an example of volcanic mountains.
while trying to help the residents of Pompeii. Today the type of eruption that Mount Vesuvius
Igneous rocks are formed from the ejection of earth’s volcanoes. Deep down inside earth’s mantle there lies hot magma. Magma is molten rock that is kept below the surface. This mixture is usually made up of four parts: a hot liquid substance which is called the melt; minerals that have been crystallized by the melt; solid rocks that have made themselves tangled in the melt because of loose materials, and finally gases that have become liquid. Magma is created by an increase in temperatures, pressure change, and a alter in composition. When this magma is ejected from earth’s crust it earns a new name called lava. The lava hardens and becomes an Igneous rock.
Volcanoes are formed when magma is expelled from the Earth’s surface, resulting in volcanic eruptions consisting of ash and lava. Over time, the lava cools and forms into rock on the Earth’s surface. Whenever an eruption occurs, the newly-formed rock from the lava layers continuously until the volcano takes its shape. Volcanic eruptions have taken place for thousands of years, and even today, according to the U.S Geological Survey (2010), there are approximately 1500 active volcanoes located throughout the world.
Mount Vesuvius is a volcano located in southern Italy, near the bay of Naples and the city of Naples. It is the only active volcano on the European mainland. Vesuvius rises to a height of 1277 m (4190 ft). Vesuvio (Vesuvius) is probably the most famous volcano on earth, and is one of the most dangerous.