敦密断裂带的地质特征及演化

敦密断裂带是规模巨大、发育历史悠久、活动期次较多的区域性深大断裂。主要形成于中生代，新生代又继承性活动。该断裂带的启动时间为晚三叠世，休罗纪一白垩纪期间经历多次挤压、拉张及走滑运动，大规模左行平移时间为早白垩世末期，最新一次活动时间是在中更新世。

The geologic features of the Dunmi faulted zone and its evolution

The Dunmi faulted zone is a large, long, multiple active phases, regional deep fault which was formed in the Mesozoic era and Cenozoic era, and late began to be posthumously moved. The beginning of the Dunmi faulted zone was the late Triassic, it underwent multiple compression, extension and strike movement in the Jurassic- Cretaceous, the large left-lateral parallel period was the end of the early Cretaceous, and the last action was in the middle Pleistocene epoch.