Topical Terminology > Undiscovered Resources (Coal)
Undiscovered resources (coal)
For Undiscovered resources (coal) we have a term and definition in Energy.
Undiscovered Resources (Coal) (Energy) 
Unspecified bodies of coal surmised to exist on the basis of broad geologic knowledge and theory. Undiscovered resources include beds of bituminous coal and anthracite 14 inches or more thick and beds of subbituminous coal and lignite 30 inches or more thick that are presumed to occur in unmapped and unexplored areas to depths of 6,000 feet. The speculative and hypothetical resource categories comprise undiscovered resources.
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