Analysis Of Coal Resource Potential In Jixi Fengle-Chaoyang Area, Heilongjiang Province

Based on the previous regional geological survey and the ore-prospecting work in neighboring areas,this research is to carry out the research and analysis of the potential of coal resources within the study area.The main purpose is to search for coal and other beneficial mineral resources,and to find prospective replacement resources for the key coal crisis mines in the east of heilongjiang province.To understand the coal bearing property of the lower cretaceous muleng formation in the study area,and to evaluate whether it has further work value,so as to provide a basis for the next step.Through investigation and analysis,the basic characteristics and sequence relations of different strata in the region are understood,and the main coal-bearing strata with working value in the region are determined to be the muling formation of the lower cretaceous.The upper strata of muleng formation dongshan formation and houshigou formation of overlying strata are controlled by drilling.A small amount of engineering has controlled the underlying strata chengzihe formation and basement strata.It is generally understood that the area is a monoclinal structure with locally developed syncline and undulations.The strata in the area have a general trend of ew-ne and N,and the shallow part is steep and the deep part is slow.The distribution characteristics of magmatic intrusive rocks are roughly understood.The research work in the region has achieved the expected purpose,and the analysis data provides a reliable basis for the next step.The coal-bearing strata in the area are the upper member of muleng formation of the lower cretaceous,containing 4-5 layers of recoverable and locally recoverable coal seams,with a thickness of 0.15-1.50 meters and a total thickness of 2.71 meters.Coal moisture(Mad)0.11 1.11%,9.92 43.25% ash(Ad),volatile(Vdaf)35.90 41.19% of total sulfur 0.30 0.72%(St,d),chlorine(Cld)0.004 0.018%,p 0.004 0.052%(Pd),arsenic(As,Ad)0-including 3 g/g,heat(Qnet,d)18.59 29.39 MJ/kg,caking index,73-90.Coal is gasified coal and 1/3 coking coal.Associated minerals are coal bed methane,germanium(Ge)and gallium(Ga),but not of industrial grade.Estimated predicted coal resources(334)? In total,60.09 million tons,including 30.22 million tons of gas coal and 29.86 million tons of 1/3 coking coal.This research analysis preliminarily confirmed that the whole research area has further work value,and the whole area can be used as the target area for the next work.It is suggested to further carry out the general survey,focus on strengthening the control of shallow and coal outcrop,increase the drilling workload in the east and north of the study area,improve the research degree of the development stability of coal seam,and hopefully provide an excellent coking coal resource base for the continuous development of jixi mining area.The further exploration and research work in this area will provide strong technical support for the coal mine in this area to expand storage and increase energy and upgrade.