Study on geological characteristics of a coalfield in western Henan
Under the current situation,to achieve the guarantee of coal resources,it is necessary to base on domestic supply,increase the potential evaluation of coal mine resources and geological exploration,tap its own potential,and use its own advantages to find new fol-low-up mine sources.Based on the geological conditions of a coal region,studying the characteristics of the coalfield sedimentary envi-ronment,logging response characteristics,coal seam distribution characteristics,coal seam physical properties,coal rock characteristics and coal types.The study showed that the recoverable coal seam of a coal region was the Ⅱ1 coal seam that occurs in the lower part of the Shanxi Formation.The thickness of the coal seam was from 0.15 m to 10.57 m,with an average of 4.11 m.It belonged to the major-ity of the minable medium thick coal seams and has a simple structure.The Ⅱ1 coal seam was composed of medium ash,medium sulfur,high calorific value lean coal,and anthracite coal.The stability of the Ⅱ1 coal seam in the area was relatively stable.The research has certain guiding significance for the development of coal industry in this region.
sedimentary environment characteristicslogging response characteristicscoal seam distribution characteristicscoal seam physical propertiescoal rock characteristicscoal types
万方数据
维普
