渭河盆地和灵宝盆地的形成始于始新世 ,中新世运城盆地开始形成 ,到上新世时期渭河断陷带统一。早更新世断陷带内形成广阔的“三门湖” ,中更新世时期“三门湖”逐渐萎缩消亡。晚更新世以来断陷带继承性的发展。由于受秦岭、华山山前断裂带等相关阶状正断层的正倾滑运动的控制 ,断陷带演化过程主要表现为大幅度的沉陷、扩张并接受巨厚的堆积 ,在其内部产生了一系列向南掀斜的断块差异运动。断陷带新地质时期垂直差异运动十分强烈 ,是一强地震活动区 The formation of the Weihe and Lingbao basins began in the Eocene, and the formation of the Yuncheng basin started in the Miocene and unified with the Weihe fault zone in the Pliocene. The Early Pleistocene fault zone formed a broad “Sanmen Lake”, during the Middle Pleather “Sanmen Lake” gradually dwindled. Development of Depression Belt Inheritance Since Late Pleistocene. Due to the control of the positive-tilting movement of the related normal faults, such as Qinling and Huashan piedmont fault zones, the evolution of the fault zone mainly shows a large subsidence, expansion and huge accumulation, and a Series tilting the south side of the block differential movement. The vertical difference movement in the depression zone during the new geologic period is very strong and is a strong seismic activity area