瓦斯风化带是煤田形成后，煤变质生成的瓦斯经煤层、围岩裂隙和断层向地表运动；地表的空气、生物化学及化学作用生成的气体由地表向深部运动。
并以丰城矿区石上井田为例，提出了确定瓦斯风化带的方法。
Through a case study from Fengcheng mining area a method for gas weathering division is provided.
依据江西省46个勘查区252个煤样的测试成果，提出了以瓦斯含量作为划分煤层瓦斯风化带的主要指标。
Based on measured data of 252 coalbed gas samples from 46 exploration areas in Jiangxi Province, the main index for gas weathering areas according to gas content data are presented.
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