论吉林羊草沟盆地中部无煤带的成因

ON THE WANT CAUSE OF FORMATION IN THE CENTRE OF THE YANGCAOGOU BASIN

本文通过对羊草沟盆地的煤层厚度、煤层大型结构、沉积旋回、岩性特征等方面的分析，结合物探资料、浅部开采资料及岩芯的观察，从不同角度详细论证了羊草沟盆地中部无煤带不是河流冲刷造成的，而是正断层错失造成的。这一结论对今后的勘探方向及采煤巷道工程布置有着重要意义。

According to analysis of coal thickness, large texture of coal lithology features and con-sidering geophysical prospecting and near一surface mine data and core observation,we dis-cuss the formation of want cause of the centre of the Yangcaogou Basin resulted from thenormal fault dislocation but not washed out by river.The conlusion has an important signifi-cance in the exploration and mining engineering design.