coal bed
Subterranean fuel layer
A coal bed is a layer or seam of coal within the earth, formed from compressed ancient plant matter.
Coal beds vary in thickness from inches to hundreds of feet and are the target of mining operations.
The company drilled through three separate coal beds before reaching the main deposit.
Joined fabric edge
- depositPlace for safekeeping
- anthraciteHighest-grade coal variety
- bituminousContaining natural tar
- ligniteLow-rank sedimentary fuel
peat · sedimentary · fossil · mineral · ore · basin · reserve · extraction
Single thickness of material
- stratumHorizontal layer of material
- formationCreation or arrangement
- horizonApparent earth-sky meeting
- sequenceOrdered succession of elements
stratification · thickness · profile · member · facies · shale · sandstone · limestone
Energy transfer rate
- electricityEnergy from charged particles
- generationAge-defined peer group
- thermalPertaining to warmth
- plantBotanical organism
turbine · steam · boiler · furnace · kilowatt · megawatt · grid · transmission
Damage by heat
- igniteStart burning something
- flameBurning gas made visible
- heatTransferred thermal energy
- fireCombustion with flames
smolder · char · embers · ash · kindle · incinerate · carbonize · oxidize
Formless, expanding substance
- extractionAct of removing
- wellheadSurface opening of bore
- drainageLiquid removal system
- reservoirLarge water storage basin
permeability · fracking · borehole · fugitive · venting · flaring · greenhouse
seam
Joined fabric edge
- depositPlace for safekeeping
- anthraciteHighest-grade coal variety
- bituminousContaining natural tar
lignite · peat · sedimentary · fossil · mineral · ore · basin · reserve · extraction · overburden
layer
Single thickness of material
- stratumHorizontal layer of material
- formationCreation or arrangement
- horizonApparent earth-sky meeting
sequence · stratification · thickness · profile · member · facies · shale · sandstone · limestone · outcrop
power
Energy transfer rate
- electricityEnergy from charged particles
- generationAge-defined peer group
- thermalPertaining to warmth
plant · turbine · steam · boiler · furnace · kilowatt · megawatt · grid · transmission · gasification
burn
Damage by heat
fire · smolder · char · embers · ash · kindle · incinerate · carbonize · oxidize · spontaneous
gas
Formless, expanding substance
- extractionAct of removing
- wellheadSurface opening of bore
- drainageLiquid removal system
reservoir · permeability · fracking · borehole · fugitive · venting · flaring · greenhouse
coal bedsolar array
Linked photovoltaic modules
wind farm · hydroelectric dam · clean energy · carbon sink · geothermal field
coal, bed, coals, beds, coaly, coalfield, coalfields, bedded, bedding