Mining | Encyclopedia

    Mining Modern mining is an industry that involves the exploration for and removal of minerals from the earth, economically and with minimum damage to the environment. Mining is important because minerals are major sources of energy [1] as well as materials such as fertilizers and steel.

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    Mining Technology in the Nineteenth Century | ONE

    Mining technology consists of the tools, methods, and knowledge used to locate, extract, and process mineral and metal deposits in the earth. The methods used to locate ore bodies range from on-the-ground reconnaissance by prospectors to remote sensing techniques such as satellite imagery.

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    Mining | Britannica

    Mining, process of extracting useful minerals from the surface of the Earth, including the seas. A mineral, with a few exceptions, is an inorganic substance occurring in nature that has a definite chemical composition and distinctive physical properties or molecular structure.

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    Mine - Simple English Wikipedia, the free encyclopedia

    The Simple English Wiktionary has a definition for: mine. In English, the term mine can stand for different concepts: Mining, a process where materials are taken from the ground Coal mining, taking coal from the ground; Mining (military), the act of placing explosive weapons that will explode when they are hit .

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    What is mining?

    Mining is the extraction (removal) of minerals and metals from earth. Manganese, tantalum, cassiterite, copper, tin, nickel, bauxite (aluminum ore), iron ore, gold, .

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    Manganese processing - Encyclopedia Britannica

    Manganese processing, preparation of the ore for use in various products. Manganese (Mn) is a hard, silvery white metal with a melting point of 1,244 °C (2,271 °F). Ordinarily too brittle to be of structural value itself, it is an essential agent in steelmaking, in which it removes impurities such

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    flotation process | Infoplease

    flotation process, in mineral treatment and mining, process for concentrating the metal-bearing mineral in an ore . Crude ore is ground to a fine powder and mixed with water, frothing reagents, and collecting reagents. When air is blown through the mixture, mineral particles cling to the bubbles, which rise to form a froth on the surface.

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    Imprecise Data and the Data Mining Process: Computer ...

    Imprecise Data and the Data Mining Process: 10.4018/978-1-60566-010-3.ch155: Missing or inconsistent data has been a pervasive problem in data analysis since the origin of data collection. The management of missing data in

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    Mining and Quarrying Impacts | Encyclopedia

    Mining and Quarrying ImpactsIntroductionMining and quarrying extract a wide range of useful materials from the ground such as coal, metals, and stone. These substances are used widely in building and manufacturing industry, while precious stones have long been used for adornment and decoration. Mining and quarrying involve investigating potential sites of extraction, then getting the required ...

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    Imprecise Data and the Data Mining Process: Computer ...

    Imprecise Data and the Data Mining Process: 10.4018/978-1-60566-010-3.ch155: Missing or inconsistent data has been a pervasive problem in data analysis since the origin of data collection. The management of missing data in

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    Petroleum | National Geographic Society

    Surface mines are estimated to only take up 0.2% of Canada's boreal forest. About 80% of Canada's oil sands can be accessed through drilling, and 20% by surface mining. Refining Petroleum Refining petroleum is the process of converting crude oil or bitumen into more useful products, such as .

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    Coal mining | Britannica

    Coal is the most abundant fossil fuel on Earth. Its predominant use has always been for producing heat energy. It was the basic energy source that fueled the Industrial Revolution of the 18th and 19th centuries, and the industrial growth of that era in turn supported the large-scale exploitation of coal deposits.

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    Encyclopedia of Data Warehousing and Mining

    that, unlike classical data mining, the focus of process mining is on concurrent processes and not on static or mainly sequential structures. Process mining techniques attempt to extract non-trivial and useful information from event logs. One element of process mining is control-flow discovery, i.e., automatically constructing

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    Kaolin | New Georgia Encyclopedia

    Dec 12, 2003 · According to the U.S. Geological Survey, more than 8 million metric tons of kaolin are mined from Georgia each year, with an estimated value of more than $1 billion. Georgia is by far the leading clay-producing state in America and is recognized as a world leader in the mining, production, processing, and application of kaolin products.

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    Strip mining - Encyclopedia Britannica

    Strip mining, removal of soil and rock (overburden) above a layer or seam (particularly coal), followed by the removal of the exposed mineral. The common strip-mining techniques are classified as area mining or contour mining on the basis of the deposit geometry and type. The cycle of operations for ...

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    Bitcoin - Wikipedia

    Bitcoin (₿) is a cryptocurrency.It is a decentralized digital currency without a central bank or single administrator that can be sent from user to user on the peer-to-peer bitcoin network without the need for intermediaries.. Transactions are verified by network nodes through cryptography and recorded in a public distributed ledger called a blockchain. ...

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    Tripoli Mining - Encyclopedia of Arkansas

    Tripoli is a microcrystalline form of quartz (SiO2) that is derived by the alteration of chert, chalcedony, or novaculite, or leaching of highly siliceous limestones. The removal of carbonate is essential to the formation of Arkansas tripoli. Tripoli is present in three general areas of Arkansas: northwestern Arkansas near Rogers (Benton County), in the Ouachita Mountains near Hot Springs ...

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    What are the main methods of mining? | American ...

    There are four main mining methods: underground, open surface (pit), placer, and in-situ mining. Underground mines are more expensive and are often used to reach deeper deposits. Surface mines are typically used for more shallow and less valuable deposits. Placer mining is used to sift out valuable metals from sediments in river channels, beach sands, or other environments. In-situ mining ...

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    Coal Mining | The Canadian Encyclopedia

    Mar 23, 2015 · A carbonaceous fossil fuel, coal has a long history as the key energy source in the transition to industrialization, beginning in 17th-century Europe. In Canada, the history of commercial coal mining dates back nearly three centuries. Coal provided a critical energy source for early industrialization, generating steam power and coke (i.e., a manufactured, high-carbon derivative of .

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    Process-Oriented Mining Method For Marine ... - Encyclopedia

    Process-oriented mining workflow for MAVs. Process-oriented marine abnormal variation extraction According to the process semantics, we design a process-oriented clustering method, and choose California coastal region as analysis area, where is also a research hotspot of global change.

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