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development workings of an underground mine
Study how iron ore is mined with explosives and crushed and concentrated with remote-controlled machines
room-and-pillar mining blasthole stoping shrinkage stoping overhand cut-and-fill mining sublevel caving panel caving alluvial diamond mining
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open-pit diamond mine
mining summary
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In this aerial photo, structures are damaged and destroyed October 15, 2005 in Balakot, Pakistan. It is estimated that 90% of the city of Balakot was leveled by the earthquake. The death toll in the 7.6 magnitude earthquake that struck northern Pakistan on October 8, 2005 is believed to be 38,000 with at least 1,300 more dead in Indian Kashmir. SEE CONTENT NOTES.
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Albert Einstein in Washington, D.C. c. 1921-1923. Physicist
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Periodical Cicada, Adult, Magicicada spp. Requires 17 years to complete development. Nymph splits its skin, and transforms into an adult. Feeds on sap of tree roots. Northern Illinois Brood. This brood is the largest emergence of cicadas anywhere
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Mona Lisa, oil on wood panel by Leonardo da Vinci, c. 1503-06; in the Louvre, Paris, France. 77 x 53 cm.
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VAN, TURKEY - OCTOBER 25: A building and car ruined during the earthquake of Van-Ercis on October 25, 2011 in Van, Turkey. It is 604 killed and 4152 injured in Van-Ercis Earthquake.
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development workings of an underground mine
development workings of an underground mine
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Category: Science & Tech
Key People:
Cecil Rhodes
Mikhail Prokhorov
Patrice Tlhopane Motsepe
Clive Palmer
Georgina Hope Rinehart
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coal mining
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hydraulic mining
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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. (One organic substance, coal, is often discussed as a mineral as well.) Ore is a metalliferous mineral, or an aggregate of metalliferous minerals and gangue (associated rock of no economic value), that can be mined at a profit. Mineral deposit designates a natural occurrence of a useful mineral, while ore deposit denotes a mineral deposit of sufficient extent and ...(100 of 13477 words)

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