Silt, culm, refuse bank, or slurry dam mining

  A mining operation producing coal from these sources of coal.
  U.S. Dept. of Energy, Energy Information Administration's Energy Glossary

Energy terms . 2014.

Look at other dictionaries:

  • Number of mining operations —   The number of mining operations includes preparation plants with greater than 5,000 total direct labor hours. Mining operations that consist of a mine and preparation plant, or a preparation plant only, will be counted as two operations if the… …   Energy terms

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