| 41. | The initial mining methods led to many fractures in the rocks, which allowed oxygen to enter the rock.
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| 42. | The efficiency and efficacy of many processing techniques are influenced by upstream activities such as mining method and blending.
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| 43. | The mine has a revolutionary mining method in which high-powered soundwaves are used to dig through clay containing diamonds.
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| 44. | In traditional mining methods, the average lifespan of a mine worker from the local community was traditionally 46 years.
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| 45. | But the company insists its mining methods are safe, and that damage in the area was caused by previous companies.
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| 46. | Humans can make inferences about data that may be beyond the scope in which an automated data mining method provides.
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| 47. | Coal strip mining methods and the surface disposal of waste rock results in the contamination of surface and ground waters.
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| 48. | The technique can be applied to coal resources that are otherwise unprofitable or technically complicated to extract by traditional mining methods.
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| 49. | The Romans used hydraulic mining methods on a large scale to prospect for the aqueducts to supply water to the minehead.
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| 50. | Coal producers dispute that, insisting that mountaintop removal is actually more sensitive to the communities below than older mining methods are.
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