What are the steps in a volcano erupting?
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ideally it is define but in reality and does not follow.
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See the link below for damage related to this Volcano:\n\nhttp://www.volcano.si.edu/world/volcano.cfm?vnum=0202-12=&volpage=erupt&VErupt=Y&VSources=Y&VRep=Y&VWeekly=Y
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Volcano is the result of Lava and gases gushing out of the surface of the earth at great heat and pressure.  The molten lava is running over the land and destroy the plants and trees and after cooling becomes rock there. Fresh lava  comes out and run in the available slope.  The result is a mountain is growing with fire and lava.  Thus the mountains are the result of volcano and lava.  When the pressure within the volcano is reduced the volcano takes rest.It will erupt at any time  and send lava and gases, fire in all the directions.  The centre of the earth is believed to contain very hot lava and gases which is likely to come out at any time in any part; and most likely in the soft surfaces .
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There are three types of lava and lava flows: pillow, pahoehoe, and aa. Pillow lavas are volumetrically the most abundant type because they are erupted at ocean ridges and because they make up the submarine portion of seamounts and large intraplate volcanoes, like the Hawaii-Emperor seamount chain. Pahoehoe is the second most abundant type of lava flow.\n\nEruptions under water or ice make pillow lava. Pillow lavas have elongate, interconnected flow lobes that are elliptical or circular in cross-section. \n\n"Pahoehoe" and "aa" are Hawaiian words that describe lava. Pahoehoe lava is characterized by a smooth, billowy, or ropy surface. Pahoehoe flows tend to be relatively thin, from a few inches to a few feet thick. In map-view the flows tend to be narrow and elongate. \n\n    Aa is characterized by a rough, jagged, spinose, and generally clinkery surface. Aa lava flows tend to be relatively thick compared to pahoehoe flows. During the early episodes of the current eruption of Kilauea volcano, aa flows up to 36 feet (11 m) thick surged through the Royal Gardens subdivision at rates as great as 108 ft/min (33 m/min). Pictures in Hawaiian Tour Guide illustrate many of the points noted above.\n\nAll volcanic eruptions produce lava. The lava can take one of two forms: lava flows or pyroclastics. We already described lava flows. Pyroclastics are pieces of lava explosively thrown out of a volcano by the expansion of gas bubbles. Pyroclasts can take many forms depending on the violence of the eruption, type of eruption, and composition of magma/lava. Two types of pyroclasts that I'm sure you are familiar with are ash and cinders. Ash is produced by very violent eruptions that fragment the lava into pieces smaller than 2 mm (0.08 inch). An excellent example of an ash producing eruption is the May 18, 1980, eruption of Mount St. Helens. Cinders are pieces of fragmented lava in the size range of 2-64 mm (0.08-2.56 inches). A good example of an eruption that produced a cinder cone is Paricutin in central Mexico.\n\nLava and pyroclasts have a variety of uses including building or ornamental stone and road material. Volcanic rocks also make an excellent substrate for agriculture.
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In a phrase, volcanic rock.\n\nEach volcano erupts constructively and destructively, and some of those constructive eruptions build the sides of the volcano.  The type of magma determines the color and shape.
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Here you go:\n\nhttp://volcano.und.edu/vwdocs/msh/
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Water.\n\nWater is one of the key parts of the formation of magma in subduction zones. The water that is in the subducting plate lowers the melting point of the rock by a few hundred degrees C. The water in the subduction plate will boil and migrate upwards into the overlying wedge of mantle rock where it will reduce the melting point of the overlying mantle. This magma will migrate upwards and form a volcano. \n\nAnother part of this process is that within rock there are many different minerals, all with different melting points, so the ones that melt at the lowest temperatures tend to form magma first, so the resulting magma comes from a partial melt of the source rock.\n\nHere's another diagram (I'd draw you my own but I can't post anything but text here):\nhttp://earth.leeds.ac.uk/dynamicearth/subduction/cordillera_islandarc.htm
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A destructive plate boundry causes one plate to be subducked below another, (sucked under basically) this causes it to melt and then rise to the surface where it forms the Mount Pelee volcano\n\nHope that helps
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ladybear08,use playdough or paper mache\nWell, anyways, go to ''google'' search and type:\n''How to make a Volcano erupt?'' and there is your answer to your ?.Use it and your problem is solved.
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Deep within the Earth it is so hot that some rocks slowly melt and become a thick flowing substance called magma. Because it is lighter than the solid rock around it, magma rises and collects in magma chambers. Eventually some of the magma pushes through vents and fissures in the Earth's surface. A volcanic eruption occurs! Magma that has erupted is called lava. \n\nalso\n\nWhen rock inside the Earth becomes hot enough it melts.\nThis molten rock, or magma, is less dense than the surrounding\nsolid rock.  Just as an object that is less dense than\nwater will float on water, the relatively low density of\nthe magma causes it to rise to the surface of the Earth.\n \nIf the magma contains water and dissolved gasses, when\nthe magma reaches the surface the water and dissolved\ngasses will suddenly expand into steam and gas, causing\na violent eruption.  This is like shaking a coke\ncan and then popping the tab.
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Basically one of three ways. These are extrusion, intrusion, and accretion. \n\nExtrusion is the process of volcanism. Volcanoes erupt molten rock that may have originated as subducted oceanic crust or deeper rock. This magma adds huge volumes of rock to the crust as it erupts and cools into solid rock. \n\nIntrusion is a similar process, but no eruption takes place. Large bodies of molten rock float upward over long time periods through the crust. When these cool and harden they are called plutons or batholiths (depending on size-batholiths are larger). These form large parts of the crust.\n\nAccretion is the other method. In some instances plate tectonics can force oceanic plates up and over continental plates. These often form what are called ophiolites where we can examine oceanic crust on dry land. Large parts of continents or islands are often forced against continental plates. This can force sediments and oceanic crust upward creating what are called 'accretionary terrane'. Much of California is an accretionary terrane, built of islands in a fore arc subduction zone that were forced up against a paleocoastline that once was near the eastern border of present day California. \n\nHere two other explanations similar to my own that illustrate these processes:\nhttp://www.physicalgeography.net/fundamentals/10j.html\nhttp://earth.leeds.ac.uk/assyntgeology/extra_info/ehistory.htm
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It depends on the volcano.\n\nIf magma - molten rock - is erupted it forms new formations when it cools. On the big island of Hawaii, the volcanic eruptions have added a lot of new land to the island.\n\nIf it is a pyroclastic flow - fast, hot gasses and volcanic debris -  like the one that destroyed Pompeii or Mt. St. Helens, there may not be any new land created and the existing land will be radically altered.\n\nIn general, when a land based volcano erupts, the lava and stone and ash build up around the eruption site into a cone shape.\n\nUndersea volcanos spweing lava also build up, but not in a cone shape. Once the hot rock hits water it starts to cool into large pillow-shaped forms.
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Like most of the interior of the earth, the movements and dynamics of magma are poorly understood. However, it is known that an eruption usually follows movement of magma upwards into the solid layer (the earth's crust) beneath a volcano and occupying a magma chamber. Eventually, magma in the chamber is forced upwards and flows out across the planet surface as lava, or the rising magma can heat water in the surrounding landform and cause explosive discharges of steam; either this or escaping gases from the magma can produce forceful ejections of rocks, cinders, volcanic glass, and/or volcanic ash also known as tephra. While always displaying powerful forces, eruptions can vary from effusive to extremely explosive.\n\nMost volcanoes on the land are formed at destructive plate margins: where oceanic crust is forced below the continental crust because oceanic crust is denser than continental crust. As the oceanic crust 'subducts', it is forced into a higher-temperature region called the asthenosphere, and melts. Friction between these moving plates may also be a cause of melting. The reduced density of the melting rock forces the newly formed magma to rise. As the magma rises through weak areas in the continental crust it may eventually erupt as one or more volcanoes. For example, Mount St. Helens is found inland from the margin between the oceanic Juan de Fuca Plate and the continental North American Plate. The oceanic crust is normally a highly-'mafic' (iron and magnesium rich) rock, but as it rises through granitic (more silicic) continental plates, it may cause 'partial melting' of both mantle rocks and the plate rocks, producing magmas of varying silicity. Volcanic arcs forming near subduction zones, on the edges of continental plates, usually form high-silicity (high-viscosity) stratovolcanoes. Examples include the South American Andes and the Cascade range.\n \nA volcano generally presents itself to the imagination as a mountain sending forth from its summit great clouds of smoke with vast sheets of flame. The truth is that a volcano seldom emits either smoke or flame, although various combinations of hydrogen, carbon, oxygen, and sulfur do sometimes ignite. What is mistaken for smoke consists of vast volumes of fine dust (called volcanic ash), mingled with steam and other vapors, chiefly sulfurous. Most of what appears to be flames is the glare from the erupting materials, glowing because of their high temperature; this glare reflects off the clouds of dust and steam, resembling fire.\n\nPerhaps the most conspicuous part of a volcano is the crater, a basin of a roughly circular shape, formed by a vent (or vents) from which magma erupts as gases, lava, and ejecta. A crater can be of large dimensions, and sometimes of vast depth. Very large features of this sort are termed calderas. Some volcanoes consist of a crater alone, with scarcely any mountain at all; but in the majority of cases the crater is situated on top of a mountain (the volcano), which can tower to an enormous height. Volcanoes that terminate in a principal crater are usually of a conical form.\n\nVolcanic cones are usually smaller features composed of loose ash and cinder, with occasional masses of stone which have been tossed violently into the air by the eruptive forces (and are thus called ejecta). Within the crater of a volcano there may be numerous cones from which vapours are continually issuing, with occasional volleys of ashes and stones. In some volcanoes these cones form lower down the mountain, along rift zones or fractures. When the cone is eroded these rifts or lava filled fractures remain as radial near vertical dikes of volcanic rock. For example the radiating dikes at Shiprock in NW New Mexico.
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WATER: water in touch with hot rock (or magma) changes into steam... the kind of eruption is named a phreatomagmatic eruption.\n\nSILICA: at greater percent of silica in magma, stronger eruption the volvano makes....
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start from here:http://en.wikipedia.org/wiki/Volcano\nthan click here:\nhttp://rds.yahoo.com/_ylt=A0geupc15FRFTXQBUXpXNyoA;_ylu=X3oDMTE2ZGhvZmh2BGNvbG8DZQRsA1dTMQRwb3MDMQRzZWMDc3IEdnRpZANERlg1XzMw/SIG=19tfhms70/EXP=1163277749/**http%3a//rdre1.yahoo.com/click%3fu=http%3a//www.volcanolive.com/%26y=04D6D45EA8332C5A9E%26i=680%26c=21908%26q=02%255ESSHPM%255BL7sviz%253Fips%257C%7eqpzl6%26e=utf-8%26r=0%26d=wow%7eDFX5-en-us%26n=0IHKK1KQNHA4BU6E%26s=12%26t=%26m=4554E436%26o=01C888B21CE6710E36%26x=052DFE91D28B9E0A83349375261B2BB2A1\nhttp://rds.yahoo.com/_ylt=A0geupc15FRFTXQBXHpXNyoA;_ylu=X3oDMTE2aXBvZDkwBGNvbG8DZQRsA1dTMQRwb3MDMwRzZWMDc3IEdnRpZANERlg1XzMw/SIG=12fj2lehe/EXP=1163277749/**http%3a//www.geo.mtu.edu/volcanoes/west.indies/soufriere/govt\nhttp://rds.yahoo.com/_ylt=A0geupc15FRFTXQBaXpXNyoA;_ylu=X3oDMTE2bTQybGs2BGNvbG8DZQRsA1dTMQRwb3MDNQRzZWMDc3IEdnRpZANERlg1XzMw/SIG=13154364e/EXP=1163277749/**http%3a//interactive2.usgs.gov/learningweb/explorer/topic_hazards_volcanoes.asp\nhttp://rds.yahoo.com/_ylt=A0geupc15FRFTXQBV3pXNyoA;_ylu=X3oDMTE2MWFla2V2BGNvbG8DZQRsA1dTMQRwb3MDMgRzZWMDc3IEdnRpZANERlg1XzMw/SIG=1aaavi8gn/EXP=1163277749/**http%3a//rdre1.yahoo.com/click%3fu=http%3a//www.volcanolive.com/contents.html%26y=04BF5322B24FA45313%26i=680%26c=15685%26q=02%255ESSHPM%255BL7sviz%253Fips%257C%7eqpzl6%26e=utf-8%26r=1%26d=wow%7eDFX5-en-us%26n=0IHKK1KQNHA4BU6E%26s=12%26t=%26m=4554E436%26o=018610364A2BA0082E%26x=05679277237FEB7DFC07236F0AED3006C9
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1.the molten mixture of rock-forming subtances, gases,and water deep in earths mantleis called magma .\n2.the ring of fire is a belt of volcanoes around the rim of the pacific ocean.\n3.the more Silica that the magma contains, the thicker the magma is.\n4.An eruption happens when an explosive erruption hurls ash,cinder,bombs,and gases out of a volcano. \n5.in a process called smeltin, an ore is melted to separate the use full metal from other elements from the ore.\n6.the property of density is the mass of the minral sample per unit volume.
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1 (People see the volcano with some smoke over it)\n2 (they do not believe their eyes, "Wow, let's come a bit closer and watch the fire"  - they say)\n3 (The top of volcano collapses down)\n4 (A large opening is proclused)\n5 (Magma forced upward earth's surface)\n6 (Poor people, they were too curious)