Sentence Examples


  • They consist chiefly of sandstone and conglomerate, but include workable seams of coal.
  • The distribution of the workable areas of mineral in the deposit; 3.
  • It must be remembered that the line between a workable deposit and one that cannot be profitably worked is often very narrow and that the majority of mineral deposits are not workable.
  • If the workable areas are poor, and appear only at long intervals along the outcrop, the chances of discovering richer areas by a shaft are very small.
  • As soon as it appears reasonably certain that the property is workable the mine will be opened by one or more shafts, drifts or tunnels, and the underground passages for active mining operations will be started.

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