论文部分内容阅读
煤层对比是煤炭资源勘查中极为重要的基础工作,做好煤层对比工作,对煤炭资源量的估算、煤矿的安全生产和煤炭资源的综合利用至关重要。煤层对比方法具有多样性,选择合适的方法对做好煤层对比至关重要。大同煤田是中国华北聚煤区北部的双纪煤田,包括侏罗纪成煤期和石炭纪成煤期。大同煤田内煤层多,结构复杂。结合近几年在大同煤田西南部地区从事煤炭资源勘查的工作经验,对大同煤田西南部地区煤层对比适用方法,包括岩性、岩相对比法,标志层对比法,煤层厚度、间距、结构、顶底板岩性对比法和煤岩煤质特征对比法进行了简单总结。
Coal seam contrast is an extremely important foundation work in coal resource exploration. It is very important to do a good job in comparing coal seams, estimating coal resources, ensuring coal mine safety and comprehensive utilization of coal resources. Seam comparison methods are diverse, and choosing the right method is crucial to making a good seam contrast. The Datong coalfield is the Shuangyiji coalfield in the northern part of North China coal accumulation area, including the Jurassic coal-forming period and the Carboniferous coal-forming period. There are many coal seams in Datong Coalfield and the structure is complex. Combining the working experiences of coal resources exploration in the southwestern Datong coalfield in recent years, this paper compares the applicable methods of coal seams in the southwestern Datong coalfield, including lithology, lithofacies contrast method, comparison of mark layers, coal seam thickness, spacing, structure, Comparison of roof and floor lithology and coal-rock characteristics of the contrast method is briefly summarized.