Abstract:

The coal is an organic rock that is very sensitive to geologic conditions, such as temperature and pressure. Coalification process is actually an open system in which coal exchanges energy and materials with the surrounding environment. During the long process of geologic evolution, all types of tectonicthermal activities have occurred and inevitably led to diversification of coal in terms of physics, chemistry, textures and structures. Affected by various geologic agents, the organic matter and the inorganic matter in the coal were moved, differentiated and rebuilt, which influenced the coal seam distribution, coal rank and coal quality, and in some degree recorded a lot of geologic information about the geodynamic process of sedimentary basin. This paper introduces the research advances of coupling effect between coalification and tectonicthermal events at home and abroad, discusses the main scientific problems, and proposes some key research projects for this area.

Key words: Key words: coalfication; tectonicthermal events; coupling effect; geodynamics of sedimentary basin