A larger down-warpedbasin formed during the Late Jurassic and the Early Cretaceous.
晚侏罗世和早白垩世为范围广阔的大型坳陷盆地。
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Located on the southeast side of Rehetai oil gas field in the east sag of Liaohe Basin, Xiaolongwan area is a compound oil gas accumulation belt with warped fault blocks.