After the formation of coal-series of Carboniferous and Permian Period. the basin was undergone by the strong Yenshan movement and the coal-formed gas had been seriously destroyed.

 
  • 在盆地中,石炭、二叠纪煤系形成后,曾经历了强烈的燕山运动,使生成的气遭到严重破坏。
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