摘要
According to the statistics data, coal will become with no doubt the most important energy source in the 21-st century. The HornaNitra Valley represents one of the main fuels 每 energy centre of Slovakia. Deposits of caustobioliths 每 brown coal and lignite presentsignificant raw material potential. The mining companies, along with run-in extraction methods of coal reserves, are giving their timeto a research of untraditional coal processing technologies. An in-situ monitoring of coal seams geo-technological propertiescontributes in a significant way to obtain some complex knowledge on interactions of certain determining factors which influencethe coal gases formation underground.