In coal basins and deposits with intense magmatism, along with distinct, but local contact changes near intrusions, areal and vertical zonality is outlined in the distribution of coals of different quality. …
How to cite:
Gavrilova O.I., Gurevich A.B., Toporets S.A. Thermal metamorphism of coal-bearing strata // Journal of Mining Institute. 1975. Vol. 68. Iss. 2. p. 19-29.
