煤田地质工作者惯用传统的煤层对比方法,如标志层法、层间距法、煤层结构、煤岩特征法及相-旋回法都是行之有效的方法。但尚感不足者是解释的定量依据不充分,使用范围有局限性以及可能存在多解 Conventional methods of coal seam correlation commonly used by coal-field geologists such as land-mark method, layer-spacing method, coal seam structure, coal-rock feature method and phase-cycle method are all effective methods. However, those who are still feeling inadequate are the quantitative basis for interpretation, the limited scope of use and the possible existence of multiple solutions