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Volcano essaysvolcanic eruption
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A volcano is the product when magma, gases, and rock fragments from underground are pushed up from the mantle. When volcanoes erupt, they expel granitic and andesitic materials that have been building up through the crust, creating an explosion of lava and ash. Volcanic landforms are formed from tectonic plates, that move and alter the lands and oceans on Earth. Located around the Pacific Plate is a chain of volcanoes, one of which is called Cotopaxi.
Cotopaxi is an active stratovolcano, meaning that it is constructed of alternating layers of lava and ash. At a height of 5,897 meters high, the volcano towers over Ecuador. In fact, Cotopaxi means “shining peak” in Quechuan. Cotopaxi’s latest eruption lasted from August 2015 through January
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.
About three-quarters of Japan is mountainous. They were formed by tectonic plates colliding. Volcanoes were formed by the land breaking, and the liquid rock built up in it. A lot of the volcanoes are active, yet no one knows when one will erupt. The
Malka Pinto is a Jewish Holocaust survivor who was born in 1910 in London, United Kingdom. At the time of her interview with USC Shoah Foundation in July 1997, Malka was 87 years old. She was raised in a Conservative Judaism family. Her family moved to Netherlands when she was about 11 years old. During the holocaust, Malka and her family were forced into concentration camps both in Netherlands and Germany. Malka lost most of her family members during the holocaust in the concentration camps. Her parents, one sister, her nephew and niece, and most of her extended family members did not survive. Malka was liberated by the French army in Germany. After their liberation,
This fire volcano which is its nickname, is one of the most dangerous volcanoes in Central America. It has erupted more than thirty times since 1585. The volcanic style is explosive with many lava domes. This stratovolcano has two younger volcanoes that are growing fast. The last earthquake recorded nearby was August thirty-first two thousand and fifteen. Colima has been an active volcano since 1994. Finally the last active volcano, Popocatepetl or El Popo as some call it was dormant for fifty years until in 1994 it exploded. Since then it has been erupting and making huge explosions. This volcano's name Popocatepetl is the Aztec word for smoking mountain. It stands five thousand two hundred and forty-six meters tall. It is seventy meters southeast of Mexico city. This volcano is the second highest volcano in North America. Popocatepetl is a stratovolcano. The last time it erupted was May 8, 2013. The last earthquake recorded near Popocatepetl was on September sixteenth two thousand and fifteen. A smaller volcano that's located in northwestern Mexico is called Cerro Prieto. This volcano is a lava dome and is only one hundred and seventy-five kilometers southeast of San Diego,
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 .
The Roman emperor Caracalla approved the construction of the Baths of Caracalla. It was the largest public bath house in Roman times. Around thirteen thousand prisoners of war constructed the baths. It was built so that up to 1,600 people could use cold baths, tepid baths, hot baths, steam baths, the open air bath, and an olympic sized swimming pool that was about 50 meters long. The baths consisted of marble, stone, and cement. Still existing today, the Baths of Caracalla covered around 25 acres.Fact number 1-The walls were covered in marble.
Volcanoes can cause damage by spewing lava, but earthquakes before the eruption can also cause damage. These earthquakes open fissures and let magma out to the surface. When the magma exits these fissures, streams of lava up to hundreds of feet can shoot into the air. The picture below shows the lava erupting from the fissures created by the earthquakes in...
5.) Volcanic Eruptions . (n.d.). Scholastic, Helping Children Around the World to Read and Learn. Retrieved October 8, 2013, from http://www.scholastic.com/teachers/article/volcanic-eruptions
Super volcanoes are formed when magma rises from the mantle to create a scorching reservoir in the Earth's
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.
the surface it erupts as a volcano. Over time the ridge is built up by
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.
The rock cycle start with a melted magma that rises toward the surface of the earth. Magma was formed in the mantle. Hirsch (2015) defines that, “a melted rock and gas bubbles will produced hot lava called magma”. Rock melt due a very hot temperature in the mantle and will buoyantly rises toward the surface of the earth for it is less dense than the surrounding rock. Most magma commonly spills from a volcanic eruption. As the magma moves quickly from the super-hot condition of the earth interior to the much cooler environment at the surface, it cools and
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.