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研究了华北中部太原组含煤地层中火山事件层的岩石学识别标志和分布规律．研究结果表明：含煤地层中广泛发育火山事件层．火山事件层的岩石类型以玻屑（沉）凝灰岩、玻屑晶屑（沉）凝灰岩和凝灰质中细粒砂岩为主．火山事件沉积的成因类型以空降－水携复合型和空降型为主．研究区由西向东，火山事件层的赋存层位有上迁的趋势；从东、西两个方向向峰峰地区均远离火山源．西部区和东部区分别对应一个火山源，东部区火山源位于河北康堡、围场一带，西部区火山源位于内蒙古达尔罕明安旗一带．
The petrologic identification and distribution of volcanic events in coal-bearing strata of Taiyuan Formation in central North China were studied. The results show that volcanic events are widely developed in coal-bearing strata. The rock types of the volcanic event are dominated by vitreous (Shen) tuff, vitreous (Shen) tuff and tuff medium fine sandstone. The genetic types of volcanic events are mainly airborne-water-carried complexes and airborne types. In the study area, from west to east, the layers of volcanic event strata tend to move upward; from the east and west directions, they are far away from the volcano source. The western and eastern regions respectively correspond to a volcano source. The eastern volcano source is located in Kangbao, Hebei Province. The volcano source in the western region is located in the vicinity of the Mingan Banner in Darhan, Inner Mongolia.