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Composition and facies variations in mid-cretaceous gates formation coals, Northeastern British Columbia : implications for interpretation of paleo-wetland environments and assessment of coalbed methane characteristics Lamberson, Michelle N.


A field and laboratory based study of medium volatile bituminous coals of the mid-Albian Gates Formation in northeastern British Columbia, Canada, was undertaken to determine the nature, controls and implications of coal compositional variation. Differences in lithotype composition reflect microscopic compositional variation. From bright to dull coals, there is a progressive decrease in vitrinite and increase in inertinite. Liptinite is negligible (

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