禹城地区推覆构造的发现及意义

Discovery and significance of the nappe structure in Yucheng area

高古4井煤成气重大突破展示了临清坳陷良好的勘探前景,增强了勘探者的信心。在研究禹城地区深部构造和区域构造应力背景的基础上,发现了禹城推覆构造,这一发现改变了对禹城地区构造特征的单一认识。本文认为,这种挤压褶皱是在印支压应力环境下发育,经多期构造应力叠加改造与加强形成的。该研究成果具有重大的地质及勘探意义。

The breakthrough of the coal derived gas on the Well Gaogu 4 show good prospects for the exploration in Linqing depression, and increase explorationists＇ confidence. The nappe structure is discovered in Yucheng based on the research of the deep structure and areal structure stress in Yucheng, which changes the simple understanding of the structural feature in Yucheng area. The buckle folding were developed under the compressing stress in Indo Chinese epoch, and reconstructed by multi-stage tectonic stresses. The research has very important significance on geology and exploration.