山东省唐口矿区三煤煤相分析

The C0al Fadcs Analysis of Coal Seam No.3 in Tangkou Mining Area,Shangdong Province

本文应用煤岩学方法，探讨了山东省唐口矿区三煤形成环境和三煤煤相，得出三煤下形成于上、下三角洲平原的过渡地带；三煤上形成于上三角洲平原，三煤可分为六种煤相，三煤煤相的分析为三煤成煤环境的研究提供了一个佐证。

Based on the coal petrographic study of coal seam No.3 in Tangkou ming area,the paper disscusses the coal-forming environments and coal facies.Coal seam No.3 couldbeen divided into two subseams-the upper and the lower.The upper subseam was formedon the transitional zone between the upper and lower delta plains.The lower subseam wasformed on the upper delta plains.Six types of coal facies have been recongnized in the coalseam No.3.The coal facies analysis provides evidence for the study of coal-forming environments.