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One word that describes the mining process for gold ore that is found at very deep levels

As a verb, it refers to selective mining of the best ore in a deposit. High-grader - One who steals rich ore, especially gold, from a mine. Hoist - The machine used for raising and lowering the cage or other conveyance in a shaft. Holding company - A corporation engaged principally in holding a controlling interest in one or more other companies

  • mining and quarrying - synonyms and related words
    mining and quarrying - synonyms and related words

    the parts of a mine where coal or another substance has been dug out of the ground. Free thesaurus definition of mining and quarrying from the Macmillan English Dictionary - a free English dictionary online with thesaurus and with pronunciation from Macmillan Education

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  • The Mining Process - Newmont Corporation - About Us
    The Mining Process - Newmont Corporation - About Us

    With odds of only one in 3,000 discoveries leading to mine development, and only 10 percent of the world’s gold deposits containing enough gold to mine, exploration can be wearisome and expensive. While gold is found throughout the world at concentrations of between two and four parts per billion, we need to discover areas that contain 2,000

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  • Gold Extraction & Recovery Processes
    Gold Extraction & Recovery Processes

    Feb 29, 2016 Feb 29, 2016 Then, rate of gold recovery is not limited by the metallic content of the product. The metallic content of agglomerates is influenced by the gold content, gold recovery, and carbon/ore ratio. For example, it has been determined that ores with 1 g/t of gold will form agglomerates with 1,050 – 1,550 g/t of gold

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  • Gold Mining Terms Glossary – Gold Bug Park
    Gold Mining Terms Glossary – Gold Bug Park

    Download our PDF of Gold Mining Terms. adit – a horizontal or nearly horizontal underground passage coming to the surface at one end of a mine.; alluvial – of or pertaining to alluvium; alluvial soil.; alluvium – a deposit of sand, mud, etc., formed by flowing water.; assay – to analyze (an ore, alloy, etc.) in order to determine the proportion of gold, silver, or other metal in it

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  • 6 Stages of the Mining Process | BOSS Magazine
    6 Stages of the Mining Process | BOSS Magazine

    Jun 22, 2018 The mining process is responsible for much of the energy we use and products we consume. Mining has been a vital part of American economy and the stages of the mining process have had little fluctuation. However, the process of mining for ore is intricate and requires meticulous work procedures to be efficient and effective. This is why we have

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  • 25.2 Extracting ores | Mining of mineral resources | Siyavula
    25.2 Extracting ores | Mining of mineral resources | Siyavula

    Gold mining in South Africa. South Africa is a world leader in the gold mining industry. We have been doing gold mining for more than a century and our mines are the deepest in the world. Until 2010 we were the leading producer of gold in the world. Gold is a lustrous, precious metal which has a very high conductivity. QUESTIONS:

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  • Glossary of Mining Terms – Legends of America
    Glossary of Mining Terms – Legends of America

    Coyote – The process of digging in river-borne gravels by tunneling until bedrock is hit.The tunnel is dug in hopes of finding a rich bedrock deposit deep in the gravel bar. Crevice – A narrow opening, resulting from a crack; a fissure. Cribbing – A timber or plank lining of a shaft; the confining of a wall-rock. Cross Cut – A level driven across the course of a vein

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  • mining - Underground mining | Britannica
    mining - Underground mining | Britannica

    mining - mining - Underground mining: When any ore body lies a considerable distance below the surface, the amount of waste that has to be removed in order to uncover the ore through surface mining becomes prohibitive, and underground techniques must be considered. Counting against underground mining are the costs, which, for each ton of material mined, are much higher underground than on the

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  • Mining Flashcards | Quizlet
    Mining Flashcards | Quizlet

    The Kennecott copper mine is an example of this type of mining. Copper, gold, granite, and gravel are commonly mined this way. surface mining. which is used when the ore is found fairly close to Earth's surface. (Note that fairly close to Earth's surface can still mean thousands of feet deep, since Earth's crust is several miles deep

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  • Minerals Flashcards | Quizlet
    Minerals Flashcards | Quizlet

    The map of an ore deposit helps miners decide how to mine the ore. True. 1.Starts near the surface and extends deep underground. 2. Occurs in veins. 3. Is exposed on the surface. 1. Open pit mining ... The process in which an ore is melted to separate the useful metal from the other elements is: Smelting

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  • 20.1 Metal Deposits – Physical Geology
    20.1 Metal Deposits – Physical Geology

    Mining and Mineral Processing. Metal deposits are mined in a variety of different ways depending on their depth, shape, size, and grade. Relatively large deposits that are quite close to the surface and somewhat regular in shape are mined using open-pit mine methods (Figure 20.1). Creating a giant hole in the ground is generally cheaper than making an underground mine, but it is also less

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    1.1 PHASES OF A MINING PROJECT - ELAW Open-pit mining Open-pit mining is a type of strip mining in which the ore deposit extends very deep in the ground, necessitating the removal of layer upon layer of overburden and ore. In many cases, logging of trees and clear-cutting or burning of vegetation above the ore deposit may precede removal of the overburden. The

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  • Heavy Metal Pollution from Gold Mines: Environmental
    Heavy Metal Pollution from Gold Mines: Environmental

    Oct 26, 2016 Oct 26, 2016 In gold mine tailings, a higher concentration of 583 mg/kg was found by Matshusa et al. in South Africa. Bitala et al. also reported concentrations as high as 11,200 mg/kg in Tanzania. Nickel exists in gold bearing ore as pyrrhotite (Fe (1−X) S), which can contain up to 5% Ni and pentlandite (FeNi)S 8. Other mineral sources are chalcopyrite

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