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陆相盆地地层充填序列主要受控于构造作用、古气候和沉积物的供给速度 ,而构造的控制作用尤为重要 ,根据北票盆地的演化特点 ,充分考虑火山作用的影响 ,界定了 3个级别火山—沉积旋回的涵义 ,并将北票盆地侏罗系充填序列划分为 2个一级旋回 ,5个二级旋回及若干个三级旋回。盆地的地层充填序列特征是对构造演化的良好指示剂 ,各级火山—沉积旋回的交替反映了构造演化的阶段性。北票盆地在侏罗纪整体处于挤压构造背景之下 ,中间又包含有多次挤压—伸展—挤压的构造演化过程。
The stratigraphic filling sequence in continental basins is mainly controlled by the tectonism, paleoclimate and sediment supply rate, and the tectonic control is especially important. According to the evolution characteristics of Beipiao basin, the effects of volcanism are fully considered, and three levels Volcanic-sedimentary cycle. The Jurassic filling sequence of Beipiao basin is divided into two first-level cycles, five second-level cycles and several third-level cycles. The stratigraphic filling sequence features are good indicators of tectonic evolution. Volcanic-sedimentary cycles at various levels alternately reflect the stage of tectonic evolution. In the Jurassic, the Beipiao Basin was under the compression structure, and the middle contains a number of tectonic evolutions of compression-extension-compression.