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乌尔逊断陷是海拉尔盆地的１个大型西断东超箕状断陷。其内部主要发育了３种类型的构造样式─—张性断块构造、盖层滑脱型正断层组合和扭动构造组合。这些构造样式分别形成于盆地断陷期、断陷扩展期与盆地构造反转期。因而它们控制了不同构造层次的田闭类型的形成。
The Wuerxun Fault Depression is a large-scale West-East fault hypophary fault in the Hailar Basin. There are mainly three types of tectonic styles developed in the interior-Zhang-Zhang fault block, cover slip-slip normal fault combination and twist structure combination. These tectonic styles are formed in the basin faulted depression period, fault extension period and basin structural inversion period respectively. Thus they control the formation of field-closure types at different tectonic levels.