Study on current situation of coal resources and coal seam and coal quality characteristics in Jiaozuo City,Henan Province
Jiaozuo mining area is located in the northwest of Henan Province,the southern foot of Taihang Mountain,spanning Jiyuan,Jiaozuo,and Xinxiang three cities,mining area includes Jiaozuo and Jiyuan two coalfields.Due to the year by year mining of the mine,the amount of coal resources has decreased significantly,coupled with the reduction of exploration investment in the later period,resul-ting in the current research on the status of coal resources in the mining area is relatively weak,and the existing research is not enough to support the production and mining of the whole research area.Based on this,by collecting all kinds of previous geological exploration data,mine mining data and mine site investigation in Jiaozuo mining area,using geology,ore deposit science and structural geology,etc,the characteristics of coal and rock,coal forming environment and coal forming law in the study area were studied.The research shows that the carboniferous and Permian coal-bearing strata in the study area can be divided into 9 coal groups,of which the Jiaozuo Coalfield contains 23 coal layers with a total thickness of 16.04 m,of which 3 main mineable coal seams with a thickness of 7.57 m.There are 22 coal layers in Jiyuan Coalfield,the total thickness of which is 6.30 m,of which 6 mineable(locally mineable)coal seams with a thick-ness of 4.61 m.The hypogenetic metamorphism is the basis of coal metamorphism in Jiaozuo Coalfield,and the regional magmatic ther-mal metamorphism is the main factor that increases the degree of coal metamorphism in Jiaozuo Coalfield,under the superposition of thermal metamorphism,the hypogenetic metamorphic appearance of coal has been changed.
current situation of resourcescoal and rock characteristicsJiaozuo mining areaJiyuan mining area
万方数据
维普
