Based on briefly describing the general situation of Sinian depositions, the conditions of source bed, reservoir and cappingrock of Dengying Formation.
本文在简述震旦系沉积概况的基础上，对川西南震旦系灯影组的生、储、盖层条件进行了分析。
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The research result shows that longwall mining method with hydraulic pressure frame supporting cappingrock is the optimal mining proposal for the gently inclined and extremely thin iron mine.