[DOC] [TLE] 6 - Scribd [PAR] Fire-damp  is inflammable and consists chiefly of methane (marsh gas). ..... 
Carbon monoxide is the chief agent causing death after mine explosions. and ... 
are a number of substances which could be ignited and burnt during an 
explosion. [DOC] [TLE] Mine Gases - Darkplaces [PAR] In connection with gob fires, blasting operations, and explosions, carbon 
monoxide is very common, while ... The chief noxious gases that are very 
poisonous are ... Fire-damp  is inflammable and consists chiefly of methane (
marsh gas). Black-damp  extinguishes flame and causes death by suffocation It 
is composed of. [DOC] [TLE] methane | chemical compound | Britannica.com [PAR] May 13, 2016 ... Explosions of such mixtures have been frequent in coal mines and collieries and 
have been the cause of many mine disasters. ... of vegetable matter under water (
where it is sometimes called marsh gas or swamp gas). ... Methane also is the 
chief constituent of natural gas, which contains from 50 to 90... [DOC] [TLE] Marsh gas - Wikipedia [PAR] Marsh gas, swamp gas and bog gas are common names for biogas which forms 
in wetlands, ... Such fires can cause surface subsidence presenting an 
unpredictable physical hazard and as well as environmental ... Firedamp, 
produced naturally in coal mines  Will-o'-the-wisp, mysterious lights that may be 
ignited methane... [DOC] [TLE] Firedamp - Wikipedia [PAR] Firedamp is explosive at concentrations between 4% and 16%, ... It caused much 
loss of life in coal mines before the invention of ... to estimate the concentration of 
the gas in the local atmosphere. [DOC] [TLE] Gas Detection | Health and Safety Middle East - The Middle East's ... [PAR] Jan 1, 2007 ... The chief inflammable gas is methane (CH4), which constitutes 97 to 100 % of ... 
Fire-damp: is inflammable and consists chiefly of methane (marsh gas). ... 
Explosions can be causd either from fire damp or coal dust. ... Hydrogen 
Sulphide is caused by the decomposition of iron pyrites in a mine as a result of... [DOC] [TLE] explosive mine gases and dusts - USGS Publications Warehouse [PAR] tive explosions due to gas and coal dust in different mines belonging ..... air and 
fire damp containing from 10.8 to 13.5 per cent of marsh gas he found to give... [DOC] [TLE] gas and dust gallery no. 1, pittsburg testing station. - USGS ... [PAR] Combustible substances............................................... ... Charcoal with saltpeter 
produces heat and gas.......................... 12. Sulphur ...... B. W. Dunn, chief of the 
bureau for the ... May, 1908, for investigations as to the "causes of mine 
explosions." ... air is best attained with gases such as marsh gas (the fire damp 
found in mines)... [DOC] [TLE] Page 1 to in 12 13 4 5 i 17 is 19 * 2, 22 23 24 25 26 27 28 29 30 31 ... [PAR] Methane is often called marsh gas be- cause it is found ... It is also the chief 
substance in firedamp, a gas that causes serious explosions in mines. The 
chemical... [DOC] [TLE] New Zealand mine explosion: the danger of methane gas - Telegraph [PAR] Nov 24, 2010 ... Gases  particularly methane  have long made mining an ... Firedamp is the 
name given to a build-up of flammable gas made mostly of methane ... NZ mine 
chief: I did not withhold footage ... Over the years there have been dozens of 
methane gas explosions underground which have caused the deaths of... [DOC] [TLE] UNDERGROUND MINE FOREMAN - Utah Labor [PAR] Methane gas occurs naturally in all coal mines, trapped in pores within the coal 
bed. ... It is produced from the incomplete combustion or explosion of substances 
... be caused by explosions either from fire damp or coal dust (thus being an ... 
carbon monoxide, one of the chief tests was done by bringing small animals, 
usually... [DOC] [TLE] By Kirk V. Cammack Contributions of the Graduate School Indiana ... [PAR] MINE GASES AND VENTILATION is hereby ..... Gas explosions. Dust explosions. 
Causes. Other causes. Methods of fighting fires.

Question: This marsh gas is the chief substance in firedamp, a gas that causes mine explosions
Answer: methane