coal seam
Mineable fuel layer
A coal seam is a layer of coal occurring naturally within rock formations underground.
Seams vary from inches to many feet thick and may extend for miles.
Mining operations extract coal by following these seams, whether through surface mining or underground tunnels: The miners worked a seam three feet thick.
Highest-grade coal variety
- bituminousContaining natural tar
- ligniteLow-rank sedimentary fuel
- peatWaterlogged decomposed vegetation
- metallurgicalOf metal science
Full-seam mining approach
- extractionAct of removing
- excavationAct of unearthing
- shaftNarrow vertical passage
- tunnelEnclosed underground route
gallery · adit · drift · face · borehole · conveyor · ventilation · methane
Horizontal layer of material
- veinVessel toward heart
- depositPlace for safekeeping
- bedrockSolid stone underground
- sedimentaryFormed from deposited material
stratification · layering · sedimentation · outcrop · subsurface · formation · basin · coalfield
Simplest alkane fuel
- explosionViolent burst of energy
- dustFine settled particles
- black lungCoal dust respiratory disease
- silicosisLung disease from dust
collapse · flooding · spontaneous combustion · outburst · suffocation · entrapment · rescue · canary
Process of creating electricity
- thermalPertaining to warmth
- electricityEnergy from charged particles
- steamHeated water's gaseous form
- turbineBlade-driven energy converter
combustion · carbon · heat · kilowatt · megawatt · grid · efficiency · boiler
anthracite
Highest-grade coal variety
- bituminousContaining natural tar
- ligniteLow-rank sedimentary fuel
- peatWaterlogged decomposed vegetation
metallurgical · rank · grade · moisture
longwall
Full-seam mining approach
- extractionAct of removing
- excavationAct of unearthing
- shaftNarrow vertical passage
tunnel · gallery · adit · drift · face · borehole · conveyor · ventilation · methane · collapse
stratum
Horizontal layer of material
sedimentary · stratification · layering · sedimentation · outcrop · subsurface · formation · basin · coalfield · measures
methane
Simplest alkane fuel
- explosionViolent burst of energy
- dustFine settled particles
- black lungCoal dust respiratory disease
silicosis · collapse · flooding · spontaneous combustion · outburst · suffocation · entrapment · rescue · canary · detector
power generation
Process of creating electricity
- thermalPertaining to warmth
- electricityEnergy from charged particles
- steamHeated water's gaseous form
turbine · combustion · carbon · heat · kilowatt · megawatt · grid · efficiency · boiler · furnace
- organic depositspeat, guano, humus, oil shale, lignite
- rock stratasandstone, limestone, shale, mudstone, siltstone
- mininggold, mines, gold mines, mine, oil
- coalanthracite, bituminous, lignite, slack, culm
- Coal Miningminers, underground mines, colliery, strip mining, underground
- coal industrystrip mining, anthracite, underground mining, coke, lignite
coal seamcountry rock
Rural-electric musical fusion
overburden · gangue · topsoil
coal seamsolar farm
Grid-scale photovoltaic installation
wind farm · clean energy · solar array · solar panel · hydroelectric dam
coal, seam, coals, seamless, seams, seamlessly, coaling, seamer, coal seams