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coal bed methane

http://resource.geosciml.org/classifier/cgi/commodity-code/coal-bed-methane

alt label
coal seam gas more like this
coal seam methane more like this
definition Coal bed methane (CBM) or coal seam gas (CSG) is a form of natural gas extracted from coal beds. Coal bed methane contains very little heavier hydrocarbons such as propane or butane, and no natural-gas condensate. It often contains up to a few percent carbon dioxide. more like this
notation
01.01.05.02.01 more like this
CBM more like this
source http://en.wikipedia.org/wiki/Coal_bed_methane more like this
type
Resource original
Concept original
broader
http://resource.geosciml.org/classifier/cgi/commodity-code/gaseous-hydrocarbons original
narrower coal-bed-methane original
in scheme commodity-code original
is primary topic of coal-bed-methane