A metamorphic Rock can be formed by simply being under the earth’s surface‚ being exposed to extremely high temperatures and a huge amount of pressure from the layers of rock above. These rocks can be formed by tectonic processes‚ some which include‚ continental collisions (this is a process that causes friction‚ distortion and horizontal pressure). These rocks can also be formed when rock becomes heated rapidly by the intrusion of a hot molten rock‚ (called magma) and it comes from the earth’s interior
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THE ROCK CYCLE ● ● ● ● There are three main types of rocks: igneous‚ sedimentary‚ and metamorphic. Each of these types of rocks are formed in different ways and each type of rock can be changed into the other types of rock. This process is called the Rock Cycle. The rock cycle is the process that makes and recycles rocks. IGNEOUS ROCKS ● ● ● ● ● ● Igneous rocks are formed from magma. Magma cools and solidifies into rock. When igneous rocks are exposed on the surface‚ time and weather break the
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intrusive rocks harden slowly beneath the surface of the earth‚ and often form large mineral crystals within the rock. Granite is a good example of an intrusive rock.Porphyritic intrusive rocks have large crystals embedded in a matrix of smaller crystals. Pegmatite is the only porphyritic rock on the Science Olympiad list.Extrusive rocks harden quickly during a volcanic eruption and are usually smooth-grained. Basalt is the most common form of extrusive rock. |IgneousName |Classification|Description
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The rock cycle is very important to us because it explains the way the different types of rocks are formed on earth. The rocks currently visible on the Earth’s surface have moved through transition stages that transformed them from one form into another. The importance of the rock cycle lies in how it forms and recycles the various layers that make up the Earth. To do this‚ the cycle moves through three different stages that produce three different types of rock. Igneous rock makes up the foundation
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Purpose of Prison Robert Lingo CRJ 303 Bridget Lott March 2nd‚ 2012 The Purpose of Prison Not everyone is model citizens within a society. Individuals cheat people out of money‚ murder‚ rob‚ and rape others within society. When people commit crime against others and not stay within the law they must be punished. This research paper will discuss the purposes for prisons‚ and analyze conditions of prison. There are programs in prison and out of prison to try to reduce an individual from returning to
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The History of Punk Rock What comes to your mind when you hear the word “punk?” Do you think of a violent‚ attention-seeking young person‚ or do you think of a rebellious teenager who is trying to go against the mainstream society? “Punk is about being 16 and saying no.” According to Encarta Dictionary: English‚ punk is a youth movement of the late 1970s‚ characterized by loud aggressive rock music‚ confrontational attitudes‚ body piercing‚ and unconventional hairstyles‚ makeup‚ and clothing
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Metamorphic rocks are originated within the earths crust. Metamorphic rocks are created when both pressure and heat meet at the right time. During metamorphosis the rocks do not melt the heat and pressure just change the make-up of the rock. There are two types of metamorphosis low grade and high grade. Low grade metamorphosis occurs at 400 degrees C and 400MPa‚ while high grade is anything above 400 degrees c and 400MPa. Once the temperature reaches a little over 600 degrees Celsius and over 600MPa
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century‚ the United States Prison population has grown past beyond what it can afford. Adult correctional systems supervised an estimated 6‚851‚000 persons at yearend 2014‚ about 52‚200 fewer offenders than at yearend 2013(2015 Kaeble‚ Glaze‚ Tsoutis‚ Minton) Christian Henrichson‚ Ruth Delaney researchers’ discovered that the cost to taxpayer for maintaining prisons in about 40 states was $39 billion. One of the great costs was Hospital and other health care for the prison population which was $335
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The rock cycle involves of a chain of continual progressions through which earth materials change from one form to another over time. Some processes in the rock cycle happen over millions of years and others occur much more quickly. There is no real starting or completion to the rock cycle; however‚ it may be appropriate to begin investigating the rock cycle with magma (Bergman 2005). Magma‚ or molten rock‚ forms only at certain locations within the earth‚ mostly along plate boundaries. Magma crystallizes
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Metamorphic Rocks Axia College of the University of Phoenix Metamorphic rock is the transformation of an existing rock type in a process called metamorphism‚ which means change in form. Metamorphic rocks make up a large part of the Earth ’s crust and are classified by texture and by chemical and mineral assemblage (Murck‚ Skinner‚ & Mackenzie‚ 2008). Metamorphic rocks started out as some other type of rock‚ but have been substantially changed from their original igneous‚ sedimentary‚
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