The basic framework of coalfield structure was settled under SE-NW directional compression during Late Mesozoic.

中生代晚期SE-NW向挤压，奠定煤田构造格架的基础；

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Coalfield structure was controlled by NNE structure. Coal bed structure thinning belt was also extended in NNE directions, Southern Hebei coalfield.

煤田构造主要受北北东向构造所控制，其煤层构造变薄带也主要呈北北东向伸展。

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The results demonstrated that this technology can improve imaging of coal seams in structure complicated areas and coalfield seismic data signal-to-noise performance and resolution effectively.

结果表明：叠前时间偏移技术能够有效地提高构造复杂地区煤层的成像效果，提高煤田地震资料的信噪比和分辨率。

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