• 责任者：Gao Rongbin (Xin’an Mine of Yima Coal Group Co. ; Xin’an 471842 ; China) ; He Zhiqiang
• 刊名：Coal Geology & Exploration
• 出版年：2011
• 卷期：39(4)
• 关键词：煤层 ; coal seam ; Henan Province
• 页码：p.13-15,19
• 图表：5 illus., 6 refs.
• 分类号：1004
• 出版序号：1054
• issnNo：ISSN1001-1986
• isbnNo：CN61-1155/P

Variation of coal seam thickness of Xin’an coalfield in the western Henan Province has effect on coal and gas outburst. In combination with statistical analysis, sedimentary environment analysis and structural analysis, the paper studied the regularities and causes of variation of coal seam thickness. The results show that the thickness of coal seam is mainly controlled by the initial substrate and the ancient river erosion in coal-forming period as well as gliding structure. According to the regularities and the causes of coal seam thickness variation, it is possible to predict coal seam thickness variation locally, but difficult to predict coal seam thickness variation regionally.