A joint is defined as a fracture in a rock between the sides of which there is no observable relative movement. They are present is most consolidated rocks of igneous‚ metamorphic and sedimentary origin. Joints may form as a result of either diastrophism or contraction. Description: (i) A series of parallel joints is called a ’joint set’. (ii) Two or more joint sets intersecting each other produce a ’joint system’. (iii) Two sets of joints nearly at right angles to one another‚ produced by the
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Rocks are classified in order to communicate information about them. All classifications of limestones are arbitrary and they frequently overlap or do not fit ones particular needs. Since binocular microscopes or hand lenses are the tools that are commonly available to the explorationist‚ a practical classification should be based on descriptions using them. When these instruments are used‚ it is usually possible to identify the individual grains forming the rock. Thus most classifications require
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Summary Rock of Ages is a vertically integrated granite quarry and manufacturer and seller of several products. The company owns and operates 13 active quarry properties and ten manufacturing and sawing facilities in North America‚ principally in Vermont‚ Georgia‚ and the Province of Quebec (Rock of Ages Corporation‚ 2010). Lately‚ the company has not met its expected revenue and is falling behind in a few areas of the business. The management issues associated with manufacturing are: Industrial
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Rocks and minerals are all around us. Earth’s crust and part of its mantle are made of rock. Rocks are made of minerals and have different properties. The properties of rocks include color‚ texture‚ luster‚ and hardness. We use rocks and minerals in many different ways. The steel in our buildings is made with iron‚ which is a mineral. The clay and glass used in our pottery and dishes are made of a mixture of rocks and minerals. We even need minerals to stay healthy‚ and we get them from a variety
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A Brief History of Antibiotics‚ Antibiotic Resistance‚ and Antibiotic Alternatives Antibiotic Resistance and Alternatives Antibiotics have been commonly‚ though mistakenly‚ thought of as the ultimate cure‚ for almost all illness‚ for over half a century now. However‚ the intended use of antibiotics is for the treatment of bacterial infections and diseases. Viruses or fungi-related illnesses will not be affected by antibiotics. This misunderstanding of the use of antibiotics has led to overuse
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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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What is Alternative Fuels Alternative Fuels come from resources other than petroleum. Alternative fuel uses sources like corn‚ vegetable oils‚ animal fats‚ natural gas‚ propane and hydrogen. Various Alternative Fuels are produced domestically‚ thus reducing our dependence on imported oils and some are derived from renewable sources. Alternative fuel produces less pollution than normal gasoline or diesel (U.S. Department of Energy‚ n.d. ). Alternative fuel is produce for a variety of vehicles
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in the rearrangement of molecules‚ but doesn’t affect their internal structures. When you make rock candy‚ you are creating a physical change. When sugar and water mix together‚ they are not forming a new substance‚ sugar dissolves‚ but it doesn’t disappear. So when you crystallize it‚ it still has the same chemical structure‚ the only thing that changed is the physical appearance. When we create the rock candy it will take about a week or more for it to fully form. While we do this project we hope
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Madonna on the Rocks Madonna on the Rocks by Leonardo da Vinci or also known as Virgin on the Rocks caused quite a commotion between Da Vinci and the commissioners due to his unorthodox methods. Madonna on Rocks was one of the only paintings left unfinished by Da Vinci. Da Vinci was commissioned to paint a alter piece for the Confraternity of the Immaculate Conception‚ in the Church of San Francesco Grande in Milan on April 25‚ 1483. It was debated that the conflict was due to monetary payment or
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league (Spires‚ 2008). Despite having a rich history around the world it wasn’t until 1968 that America formed a professional league that was of any prominence. The North American Soccer League (NASL) combined two
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