Demonstrated reserve base

(coal)
  A collective term for the sum of coal in both measured and indicated resource categories of reliability, representing 100 percent of the in-place coal in those categories as of a certain date that meet specific minability criteria. Includes beds of bituminous coal and anthracite 28 or more inches thick and beds of subbituminuous coal 60 or more inches thick that can occur at depths of up to 1,000 feet. Includes beds of lignite 60 or more inches thick that can be surface mined. Includes also thinner and/or deeper beds that presently are being mined or for which there is evidence that they could be mined commercially at a given time. Represents that portion of the identified coal resource from which reserves are calculated.
  U.S. Dept. of Energy, Energy Information Administration's Energy Glossary

Energy terms . 2014.

Look at other dictionaries:

  • Inferred reserve base — (coal)   the resources in the inferred reliability category that meet the same criteria of bed thickness and depth from surface as the demonstrated reserve base.   U.S. Dept. of Energy, Energy Information Administration s Energy Glossary …   Energy terms

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