Micro organic compo-nent of coal was damaged,gelinite decreased,liptinite increased,ash content increased,calorific value reduced and volatile-matter content anomalous.

• 煤的灰分产率增高、发热量降低；挥发分产率异常。这些特征不仅与原地生成煤构成了明显对比，而且也揭示了这种异地煤的成因机理。