Mining Assignment #4 By Siyuan Wei‚ Yifei Pei‚ Amrita Sur and Clinton Huynh Mineral: Copper Dip: 60 Depth: 650m Location/Terrain: Under River Chosen Mining Method: Sublevel Stoping - Sublevel Stoping is designed for mineral deposits which consists of fairly stable rocks and have a steep dip. - This method is quite commonly used to mine copper at varies sites around Australia. For example‚ Mount Isa‚ Olympic Dam etc… Mining Process - Sublevels are created within the solid
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cooling sets up stresses in the rock that cause it to disintegrate. Occurs mostly in deserts where there is the greatest diurnal temperature range. Also occurs during bush fires. Wetting & Drying (Slaking) Rock is alternately wetted then dried. Minerals which make up clay rocks expand when wetted‚ then contract on drying-out. The stresses from repeated expansion and contraction cause the rock to disintegrate. This process commonly occurs on the intertidal zone of coasts. Exfoliation (Onion weathering/Spheroidal)
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MINERALS 5 CHARACTERISTICS OF A MINERAL: 1)Naturally Occuring; 2) Be a colid; 3) Have an orderly crystalline structure; 4) have a definite chemical composition; 5) generally be inorganic Which are not classified as Minierals & Why: Gold‚ Water‚ Synthetic Diamonds‚ Ice & Wood: Gold-YES – naturally occurring; Synthetic Diamond: NO – Manmade; Water: NO – liquid state‚ only a solid material can be considered a mineral – in it’s naturally occurring ice state it is a solid and therefore a mineral;
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Topic: Silver is an ancient mineral that dates back since prehistoric times. One thing that makes silver so special is that it was one of the first five metals that we started to use. Silver is found in almost every electronic device there is‚ and as time progresses the usage of it increases‚ unfortunately the amount there is left decreases. How is it created or source of the mineral? (5) Silver is not originated from Earth‚ as it happens it came from space. Many elements were formed in the big
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COMPANY OVERVIEW | | | Lepanto Consolidated Mining Company was established in 1936. 2011 marks the company’s 75th year in the business. Lepanto is a Filipino primary gold producer. The Lepanto mines are located in Mankayan‚ Benguet where the Company has about a thousand employees. From 1948 to 1996‚ Lepanto’s Enargite operations produced 1.58 billion pounds of copper‚ 2.9 million ounces of gold and 12.0 million ounces of silver‚ recovered from 34.4 million MT of ore averaging 2.2%
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SCRAPPING THE MINING TAX- IS IT GOOD OR BAD? Executive summary Introduction The Australian governments mining tax‚ the mineral resource rent tax (MRRT) has always been under the radar for its ever changing policies. It is very easy to pint out its significant issues‚ but reforming the tax is quite a major task at hand. All the corporations involved within the mining industry‚ as well the different corporations in the economy‚ pay a current income tax rate of 30% on its revenue that they earn
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rocks to break apart over time. In areas with extreme temperature differences‚ thermal expansion and shrinkage of rocks can occur. This will also affect the stability of rocks. Physical weathering in addition to moisture can even dissolve some of the minerals in the rock. This is known as chemical weathering and can also affect the stability of rocks. In some cases‚ heavy rains can cause mass wasting events. These large amounts of precipitation can large amount of pressure causing rock slides (National
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gas -as cloud cooled little grains of minerals started forming -grains of minerals started bumping into each other (Problem was nobody could explain how these microscopic minerals formed a planet) Then in 2003 astronaut Don Pettit performed an experiment onboard the international space station. He put some salt in a plastic bag and found that almost immediately the grains started gathering together into little clumps held together by static charge. -These mineral grains grew into small pieces of rock
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There is an important theme at the heart of Wool‚ but the average reader might find it hard to find. The reader can find the first theme is easily found‚ that humans usually fight things out of fear. This is shown when Bernard‚ head of IT sentences Lukas to the cleaning when Lukas figures out that Bernard killed a man. Bernard used the pretext that Lukas had said he wanted to go outside. This theme is also shown when Juliette is sent to the cleaning for looking at the previous sheriff‚ Holston’s
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The usage of Impact breaker: This series of products can process the material with side length of 100-500mm. Countries in the development‚ social progress in‚ with the development of economy and raise the level of science and technology‚ natural mineral resources is increasingly being used in human economic development‚ and application scope is continuously expanding. This is the many resources ore basalt‚ one of the most notable example. In recent years‚ with the urbanization process and the construction
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