断层接触是一种构造接触，即侵入岩体与围岩间的界面就是断层面或断层带。该断裂带常伴有动力变质现象，根据断层接触关系可以初步确定岩体在断层之前形成。
松辽盆地深层资料复杂，断层接触关系不清楚，火山岩特征不明显。
Deep layers are mainly characterized by inconspicuous faulted contact and lava characteristics at the Songliao basin.
后两种来源局限于少数区域，在这些区域，地表水通过地下断层或断裂往下渗透，从而接触到被近期的熔岩活动加热的深层岩石。
The latter two sources are limited to those few areas where surface water seeps down through underground faults or fractures to reach deep rocks heated by the recent activity of molten rock material.
由于受后期构造叠加改造的影响，现今二者呈断层或隐蔽不整合接触关系。
Owing to the influence of tectonic superimposition and reworking at the late stage, both show fault or hidden unconformable contact relationships at present.
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