coalmine
Underground fuel source
A coalmine is an underground excavation or system of tunnels where coal is extracted from the earth.
Surface operations that strip away overlying rock are usually called strip mines rather than coalmines.
His grandfather worked in the coalmines of West Virginia.
A canary in a coalmine is an early warning sign—from the practice of bringing canaries underground to detect toxic gases.
Coal extraction site
- pitheadMine shaft entrance
- corporationLegally separate business entity
- nationalizationGovernment acquisition of industry
- privatizationState sells public assets
export · steel · ironworks · railcar · barge · stockpile · tipple · processing
Joined fabric edge
- anthraciteHighest-grade coal variety
- bituminousContaining natural tar
- ligniteLow-rank sedimentary fuel
- stratumHorizontal layer of material
bedrock · deposit · formation · fossilized · peat · outcrop · overburden · slate
Underground fuel extractor
- pitmanUnderground mine worker
- shiftMovement or work period
- headlampForward-facing vehicle light
- helmetProtective head covering
pickaxe · drill · overalls · canary · union · strike · workforce · foreman
Narrow vertical passage
drift · adit · gallery · stope · face · coalface · headframe · pithead
Simplest alkane fuel
- explosionViolent burst of energy
- collapseSudden structural failure
- cave-inUnderground passage collapse
- silicosisLung disease from dust
pneumoconiosis · rockfall · subsidence · ventilation · dust · flooding · entrapment · rescue
Energy source material
- combustionExothermic reaction with oxygen
- powerEnergy transfer rate
- steamHeated water's gaseous form
- electricityEnergy from charged particles
generation · thermal · furnace · boiler · heating · industrial · locomotive · stoker
colliery
Coal extraction site
- pitheadMine shaft entrance
- corporationLegally separate business entity
- nationalizationGovernment acquisition of industry
privatization · export · steel · ironworks · railcar · barge · stockpile · tipple · processing · washery
seam
Joined fabric edge
- anthraciteHighest-grade coal variety
- bituminousContaining natural tar
- ligniteLow-rank sedimentary fuel
stratum · bedrock · deposit · formation · fossilized · peat · outcrop · overburden · slate · shale
collier
Underground fuel extractor
helmet · pickaxe · drill · overalls · canary · union · strike · workforce · foreman · crew
shaft
Narrow vertical passage
pit · drift · adit · gallery · stope · face · coalface · headframe · pithead · winding
methane
Simplest alkane fuel
- explosionViolent burst of energy
- collapseSudden structural failure
- cave-inUnderground passage collapse
silicosis · pneumoconiosis · rockfall · subsidence · ventilation · dust · flooding · entrapment · rescue · safety
fuel
Energy source material
- combustionExothermic reaction with oxygen
- powerEnergy transfer rate
- steamHeated water's gaseous form
electricity · generation · thermal · furnace · boiler · heating · industrial · locomotive · stoker · bunker
coalmineopen-pit mine
Surface-level excavation for ore
quarry · strip mine · surface mine · offshore platform · oil well
coalminesolar farm
Grid-scale photovoltaic installation
wind farm · hydroelectric dam · nuclear plant · geothermal plant · solar panel array
coalminenature reserve
Protected habitat area
wildlife sanctuary · national park · solar farm · wind farm · conservation area