含煤岩系古地理类型半定量分类探讨

在研究我国含煤岩系古地理类型和剖面沉积相构成特征的基础上,提出含煤岩系古地理类型的半定量分类方案,选取三种主要沉积介质营力作用即海洋作用,河流作用和湖泊作用,作为分类的参数且分别构成扇形半定量分类图的S、R和L三个端元,并通过分析反演构成含煤岩系沉积相的介质营力类型及其相对丰度实现S、R和L三参数对含煤岩系影响程度的定量化分析。

Semi-quantitative Classification of Paleogeographic Types of Coal Bearing Strata

Based on the study of the paleogeographic types of China's coal bearing strata and the formative features of sedimentary facies, a semi-quantitative classification scheme is put forward. It selects three major types of the medium forming forces, i.e. the forces of sea, river and lake as the classific parameters, which form respectively the three end members S, R and L of the fanshaped classification figure. The quantitative analysis of the effect of the three parameters on the coal bearing strata is realized through the analysis and re-action of the sedimentary faocies and its riches which form the coal bearing strata.