Study progress on volcanic event deposits of Permo-Carboniferous in North China

There were information transferred from the Glacial Epoch to the Interglacial Epoch recorded in the Late Paleozoic sedimentation in North China and a study on the volcanic event sedimentation always was a hot spot.With the four aspects (of the volcanic event sedimentation type and features,volcanic event sedimentation recognition method,volcanic event sedimentation comparison and volcano source distribution,pyroclastic transportation mechanism) mainly,the paper summarized the study achievements on Late Paleozoic volcanic event sedimentation in North China in the passed over 30 years and in detail stated the study progress on each aspect.There were five possible feature study orientations of the Late Paleozoic volcanic event sedimentation in North China comprehensively obtained,including ① a multi type volcanic event sedimentation distribution under different space-time dimension,② multi means combined volcanic event sedimentation recognition method,③ comparison framework establishment of the volcanic event sedimentation in a large dimension region and the volcano source distribution and property,④ the pyroclastic transportation mechanism under the joint control of the multi factors and ⑤ the chronology study on the volcano time sedimentary.Therefore the paper pointed out the possible applied study method of each future orientated study.The paper could provide a certain base to the theoretical study on the deep ancient climate and base sedimentation theory of the Late Paleozoic in North China.