Sedimentary Fades and Coal-accumulating Characteristics of Dabeihai Mining Area

摘要：

To explore the North Sea mine coal - bearing sedimentary environment and coal characteristics of Yuanbaoshan Basin , thus predict the geological factors affecting coal mining production.Apply sedimentary theory; through the study of sedimentary sections of drilling cores and sand body development characteristics recognize the study area formed by lake facies, fan - delta facies, fluvial, alluvial fan and peat swamp.The early environment is lakes and fan delta; The southeast of mining area late changes into progradation and retrogradation of alluvial fan; the mining area is alternating of peat swamp and rivers environment and forming coal deposits spinning back; in the last the sedimentary is fluvial environment with local coal seam.In the non coal deposition of coal spinning back, sand body features and phase space relation indicate that the ancient water flow for north west.Hereby it forecasts the possible extension direction of erosion of coal seam is north north west.Through the research of lithology of overburden layers of coal seams, it can help the plan for support.

关键词： sedimentary facies sedimentary environment coal-accumulating characteristic scouring zone sedimentary cycle coal seam roof and floor roadways supporting characteristics of sand-body

作者: Zhao Bo Wang Yulin Wang Chujie Yao Yi

作者单位: Mining College,Liaoning Technical University,Fuxin,Liaoning,123000

会议类型: 国际会议

会议名称: the 4th International Symposium on Mine Safety (2012) 第四届国际矿山安全学术研讨会(2012)

会议地点: 阜新

会议语种:英文

页码: 182-185

在线出版日期: 2012-08-04（万方平台首次上网日期，不代表论文的发表时间）