邯郸—峰峰矿区构造应力场分析及其影响

Tectonic Stress Field Analysis and Its Influence in Handan-Fengfeng Mining Area

通过野外露头共轭剪节理的产状测量,采用数学统计方法进行分期配套,总结了邯郸—峰峰矿区地台盖层沉积以来主要经历的三期构造应力:第一期为印支期,主压应力近南北向,影响较弱;第二期为燕山中期,主压应力为南东—北西向,影响较强烈;第三期发生在中生代末期至古近纪喜山期,主压应力为北北东—南南西向,主要表现为北西西—南东东方向的拉张。

Through strike-dip surveying of field outcropped conjugate shear joints and adopt mathematical statistics to match by stages. Summed up three main tectonic stress stages experienced by platform superficial deposition in the Handan-Fengfeng mining area： the first stage was during Indo-Chinese Epoch, main compressive stress near NS, had relative weak influence; second stage during the middle of Yanshanian Epoch with main compressive stress of SE-NW, relative strong influence; third stage during Late Mesozoic to Paleogene Period Himalayan Epoch with main compressive stress of NNE-SSW, mainly appears as extension of NWW-SEE.