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华北北部燕山南麓晚古生代煤田包括三河煤产地、蓟玉煤田、新军屯煤产地、开平煤产地等。这些煤田的含煤地层均为第四系覆盖,地表无基岩出露。我们对蓟玉煤田下仓勘探区、北潭勘探区、新军屯煤产地东欢坨勘探区做了大量的钻孔岩心岩矿鉴定工作,并对开平煤产地的岳胥勘探区部分钻孔岩心、三河煤矿零散岩样也做了岩矿鉴定。由此发现,该区上石炭统赵各庄组及下二叠
Late Paleozoic coalfields in the southern foot of Yanshan in northern North China include Sanhe Coalfield, Jiyu Coalfield, Xinjunntun Coalfield and Kaiping Coalfield. The coal-bearing strata in these coal fields are all Quaternary covered with no bedrock exposed on the surface. We conducted a large number of borehole rock and core rock identification work in the Xiacang prospecting area of Jiyu coalfield, the exploration area of Beitan and the exploration area of Donghuan Tuo in Xinjunntun coal production area, and partially drilled holes in the Yuexi exploration area of Kaiping coal production area Rock, Sanhe coal mine scattered rock samples also made a rock identification. From this, it is found that the Upper Carboniferous Zhaogezhuang Formation and the Lower Permian in this area