Volcanoes occur in many different places. Most places volcanoes occur on the edge of the tectonic plates. Volcanoes are formed by the earth’s plates moving closer and closer pushing each other up. Volcanoes are one of the most frightening and dangerous events on earth. A volcano I an opening in earth's crust, by molten rock and gas.Most of the Earth's volcanoes are located around the Pacific Ring of Fire because that the location of most of the Earth's subduction zones.When lava erupts it is made up of a slush of crystals, liquid, and bubbles. The liquid freezes to form volcanic glass. Chemically lava is made of the elements silicon, oxygen, aluminum, iron, magnesium, calcium, sodium, potassium, phosphorus, and titanium. There are 4 different types of volcanoes.There are Extinct, Dormant, Active and Mud volcanoes. The most popular volcano an Active Volcano. An Extinct Volcano is when the magma under the surface colls. Most Extinct Volcanoes have not erupted for thousands of years. Dormant Volcanoes are ones that are quiet for a long and suddenly erupt again without anyone knowing or realizing it was going to happen. When a volcano has not erupted for …show more content…
Volcanoes are mainly formed by plate tectonics. Volcanoes are closely associated with plate tectonic activity. Volcanoes mainly vent from the vents crust. Most magma is formed by partial melting of the mantle. Volcanoes are made up of different layers of the earth. Many things can occur after a bad eruption. There are 3 main things that can happen. They are Hot Springs, Calderas and Mud spots.Hot Springs occur when magma beneath the surface heats up the water in the cracks overlying rocks. Calderas happen when a massive blast of lava empties a volcano's magma chamber and causes the volcano to collapse on itself. Mud spots happen when water is heated underground can release steam that forces its way to the
Super Volcanoes There is no exact definition for a super volcano, but the expression is often used to refer to volcanoes that have produced extraordinarily large eruptions in the past. When one of these large eruptions occurs, a huge amount of material is blasted out of the super volcano, leaving a massive crater or caldera. A caldera can be as much as forty or fifty miles wide. At Yellowstone, the caldera is so big that it includes a fair amount of the entire park
massive mountain as it takes up nearly half of the flourishing landscape of the island of Hawai’i. This island is actually made up of five volcanoes, Kohala, Mauna Kea, Hualalai, Mauna Loa, and Kilauea, all in such close proximity that they fused together to form one whole island. Mauna Loa is located in the south central area of Hawai’i, in the Hawai’i Volcanoes National Park and its coordinates are 19°5' N, 155°6' W. It is 13,680 ft above sea level, but if one measures from its true base on the ocean
pick up and blow the dust around the planet, coloring it red. What would you see if you went for a nature walk on Mars? Among the surface features are giant volcanoes and vast canyons. The largest volcano in the entire solar system is on Mars, Olympus Mons. It is classified as a shield volcano, similar to the volcanoes in Hawaii. Olympus Mons, three times higher than Mount Everest, is twenty- five kilometers high, surrounded by a 550 kilometer moat filled with lava. The Valles
Today I will like to share with you some of the geographical, historical and cultural values of Hawaii. (Transition: Let’s start with the physical geography.) Body I. Hawaii is the only state made up of islands and islets formed from volcanoes. A. It is the southernmost state in the United States 1. Located south of the Tropic of Cancer. 2. The only state located in the tropics, and the without territory on the mainland of any continent. B. Hawaii has eight major islands
What are volcanoes? A volcano is a mountain that opens downward to a pool of molten rock below the surface of the earth. When pressure builds up, eruptions occur. In another definition it is a mountain That has a passage to the underground molten seas of rocks , when the pressure increases on this molten seas it causes eruption gases and molten rocks shoot up through a hole in the top of the mountain and fill the air with lava fragments . This eruptions cause a leatral blasts ,lava flows , hot
article “Under the Volcano” is written by Jack McClintock and is the most informative. The persuasion to have people move away from the danger area of Mt. Rainier is very subtle. The article lists volcanoes that have erupted and when they did so. Throughout the article there are pictures of volcanoes and the corresponding text shows what is being done to monitor them. The focus of the piece is the danger to Seattle and Tacoma posed by Mt. Rainier. There is an illustration of the danger zones of
molten lava, and ash. Volcanoes are generally grouped into four categories: cinder cone, composite volcanoes, shield volcanoes, and lava domes. Cinder cone volcanoes are formed when gas-charged lava explodes into the air. The pieces of lava that fall from the air solidify and create a cone-shaped hill with a cup-shaped depression. Composite volcanoes are large, steep, symmetrical cones with a crater at the summit that contains a vent or cluster of vents. Composite volcanoes are responsible for some
describe it as one of the most hellish and population decimating volcanoes. Vesuvius lives…or lived! In its prime, Vesuvius covered and demolished two of Italy’s biggest cultural and artistic cities of its time. In this paper, I will be discussing volcanoes in general. In addition, Mt. Vesuvius, in particular, will be thoroughly looked at, as well as its 79 AD eruption. Volcanoes have long been depicted as nature’s killer. In movies, Volcanoes are seen as mountains of fire and spitting lava; their only
Volcanoes are catastrophic events in time . Although how dangerous volcanoes can be they attract huge groups of tourists every day . There are different types of volcanoes and different volcanic eruptions and are all horrific . Volcanoes can affect everyone and everything in it’s path . Volcanoes can be found all over the world and there are volcanoes forming this very second. Volcanoes bring curiosity to everyone . Volcanic eruptions occur over a series of stages. Volcanoes are found on plate boundaries
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
across, ten kilometers high, and contains twelve large volcanoes. The largest volcanoes in the Tharsis region are four sheild volcanoes named Ascraeus Mons, Pavonis Mons, Arsia Mons, and Olympus Mons. The Tharsis Montes (Ascraeus, Pavonis, Arsia) are located on the crest of the crustal bulge and their summits are about the same elevation as the summit of Olympus Mons, the largest of the Tharsis volcanoes. While not the largest of the Tharsis volcanoes, Arsis Mons has the largest caldera on Mars, having
shifting causes two of Japan's most striking features-- earthquakes and volcanoes. The Japanese islands have about 1500 earthquakes a year. Most of them are minor tremors that cause little damage, but severe earthqaukes occur every few years. Underseaquakes sometimes cause huge, destructive tidal waves, called tsunami, along Japan's Pacific coast. The Japanese islands have more than 150 major volcanoes. Over 60 of these volcanoes are active. Numerous short, swift rivers cross Japan's rugged surface
myself, was last summer when my boyfriend and I drove to Washington. It was the most beautiful, peaceful looking mountain I have ever seen. However, underneath it's great beauty, it hides a deadly secret. Mt. Rainier is one of the most dangerous volcanoes that we have here in the United States. One of the reasons it is so dangerous is because of it's great beauty. People enjoy looking at it, and the area that surrounds it, so they have made their homes here. Mt Rainier is not the only volcano I am
Effects of Volcanoes The plates, which are about 20 miles thick, make up the Earth's crust and are a chief cause of volcanic activity. These plates are always in motion. They move very slowly; however, at times, they bump into each other. These movements put a lot of pressure on the surface rock. Volcanoes obtain their energy from such movement and pressure. Volcanoes form at the boundaries of these plates where two types of movement occur: two plates will collide with each other, or the plates will
There are forty-two volcanoes in Mexico. Mexico’s volcanoes are on the North American Continental tectonic plate. Out of all the volcanoes the three most active are Popocatepetl, El Chichon, and Colima. El Chichon had its last eruption in 1982. No one living near this mountain saw it coming because its last eruption was one hundred and thirty years earlier and was minor. They also ignored the earthquake on the night of March twenty-eighth. But in the morning no one could miss the ash and debris in