have come and gone. As mountain ranges eroded‚ sediments many kilometres thick were laid down over vast areas. These sedimentary rocks were then subjected to folding‚ faulting and uplifting. Over time‚ the forces of weathering and erosion wore these down again. Erosion acts more quickly on softer rocks‚ forming valleys and bays. Harder rocks remain as mountains‚ hills and coastal
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Diffusion Chemical Conversion Anodizing Process Ion Implantation Mechanical Treatments Methods of Characterization 18/01/2015 MCG 5138K- Surface Engineering Adding a Surface Layer Galvanizing Process Thermal Spray Process Physical Vapor Deposition Chemical Vapor Deposition Diff. Applications 2 1 18/01/2015 Outline What is Surface Engineering? Objective of Surface Engineering Classification & Selection of Surface Engineering Processes (1) Overlay vs. Surface Modification processes (2) Changing Surface
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The Koyna Dam is one among the 23‚000 large dams in the world. The Koyna project is a multi- purpose project‚ but primarily designed as a hydro- electric project that supplies hydro-electric power to Maharashtra‚ India with an installed capacity of 1920 MW. 2.1. Study Area The area selected for the present study is the Koyna Reservoir‚ situated on the west coast of Maharashtra‚ India‚ lies between the latitude of 17◦00’-17◦59’N and longitude of 73◦02’–73◦35’E. The location of the study area along
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Acid Rain and its Chemistry Acid rain is a type of pollution that is becoming a major threat to our planet and is need of attention. Acid rain has significantly increased ever since the industrial revolution‚ and now around the world‚ countries like Russia‚ China‚ and those in Europe are facing increasing levels of acidity in their rain. Not only is it becoming more acidic but it is also spreading by the pumping of sulfuric gasses deeper into the atmosphere from of the use of taller smokestacks
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of the Earth. They are formed either by the movement of tectonic plates or the action of water or ice. The Earth’s surface is the result of both constructive processes. Destructive Processes -Weathering -Erosion Constructive Processes -Plate Tectonic processes (volcanic eruptions) -Deposition Major Landforms •Mountains and Mountain Chains A mountain is a large landform that stretches above the surrounding land in a limited area‚ usually in the form of a peak. A mountain is generally steeper than
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combustion make it a primary air pollutant that is affecting the natural temperature of our atmosphere‚ bringing adverse effects with it. Nitrogen oxides are another example of primary air pollutants‚ involved in the creation of photochemical smog‚ acid deposition‚ and ozone depletion. Nitrogen oxides include nitrogen dioxide‚ nitric and nitrous acid. NO2 is of most concern; it is a highly reactive gas emitted from vehicles and power plants that also affects the respiratory system of sensitive people‚ such
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Biophysical Interactions The upland area of the Australian Alps is underlain by marine sediments. Then through denudation the area was worn down and dissected by different forms of weathering and erosion. Once the land was uplifted and exposed to the effects of weathering‚ the varying degrees of resistance to erosion offered by different rock types became important. Softer sedimentary rocks eroded far more quickly‚ leaving the more resistant rocks in the highest areas. Rivers and streams cut down through
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along the shore‚ which eventually builds up over time to form a beach. This occurs when the swash is stronger than the backwash‚ depositing more sediment than it transports elsewhere. Although beaches are a landform of deposition‚ they can also be considered to be a landform of erosion. When waves are huge and high‚ the backwash is more powerful than the swash‚ removing more loose material than it deposits. These types of waves are known as destructive waves. The smallest particles are deposited nearest
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Sedimentary Rock Classification Depositional Environments Sedimentary Structures Sedimentary Rock + 5% of rocks in the outer 10 miles of crust. + 75% of rocks exposed at the surface. + Preserve evidence of surficial processes... February 14‚ 2002 Geology 211‚ Physical Geology Geology 211‚ Physical Geology ©Copyright‚ 2002‚ Ron Parker ©Copyright‚ 2002‚ Ron Parker ! Occurring today ! That occurred in the past Geology 211‚ Physical Geology‚ ©‚ 2002‚ Ron Parker Types of Sedimentary Rock
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INDIA PHYSICAL FEATURES Geographical Set Up: India takes its standard time from the meridian of 82 30 E‚ which is 5 ½ hours ahead of Greenwich Mean time ( 0 longitude).Pakistan time is 5 hours ahead of GMT and Bangladesh time is 6 hours ahead of GMT. Significance of Location: Barring the plateau of Baluchistan (which form part of Pakistan)‚ the two great ranges of Sulaiman and Kirthar cut it off from the west. Along the north‚ the great mountain wall formed by the Hindukush‚ Karakoram and
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