临汾地区处在鄂尔多斯盆地南北分区与东西分区的构造交汇部位，在该区构造特征表现为“东西分带，南北分层”的规律，是多期次构造应力场下的产物。通过运用层面校正的方法，结合野外实测共轭节理，对区域内古构造应力场进行恢复，共得到3期构造应力场方位，区域内共发育3期构造应力场。印支期构造应力场，主应力方向为 NNE －SSW、近 SN 向；燕山期共发育2组主应力，早期 NW －SE 向的构造挤压应力以及晚期 NW －SE 向拉张应力，这与区域性构造体制转变是一致的；喜山期构造主应力方向发生根本转变，由 NW 向转变为 NE 向。%Linfen region is located in the tectonic interjunction of Ordos basin north -south division and east -west division,where the tectonic features has the rule of east -west zoning and north -south layering,that is the product of multi -period tectonic stress field.Through using the method of level adjustment,combines with the conju-gate joints of field survey,to recover the palaeotectonic stress field in the region,receives three periods of tectonic stress field orientation,three periods of tectonic stress field are developed in areas.The principal stress directions of tectonic stress field in Indosinian period is NNE -SSW,close to SN.Two principal stresses are developed in Yans-hanian,that are structure compression of NW -SE in the early time and stretching stress of NW -SE in the late per-oid,which are consistent with regional tectonic regime transition.The principal stress directions of structure in Hima-layan changes fundamentally from NW turn into NE.
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