a mixture of gases (mostly methane) that forms in coal mines and becomes explosive when mixed with air. It is a source of serious hazard in coal mining operations.
A combustible gas, usually methane, occurring naturally in coal mines and form
The Miner's description for the naturally occurring 'marsh gas' (methane) which results from the decay of vegetable matter. In certain critical volumes, mixed with air, firedamp is highly explosive.
A combustible gas formed in mines by the decomposition of coal, it explodes upon ignition when mixed with atmospheric air.
a mixture of gases (mostly methane) that form in coal mines and become explosive when mixed with air
This is the name miners give to methane gas. The gas appears naturally in coal seams and can be the cause of dreadful accidents.
Firedamp is a flammable gas found in coal mines. It is actually the name given to a number of flammable gases, including methane. It is particularly commonly found in areas where the coal is bituminous.