NMR potentials for studying physical processes in fossil coals
High-resolution, pulsed, and wide-line NMR studies
of fossil coals are reviewed. Coal substance conversion due to
outbursts is discussed. Results on water and methane interactions with coal substance, which provide insight into the dynamic characteristics of boundary water, the location of
methane in coal structure, and water and methane’s hazard
implications for coal beds (gas- or geodynamic phenomena)
are presented; these are shown to have potential for predicting
and preventing life threatening situations.