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柳树河子盆地构造类型为一半地堑式的断陷盆地。油页岩形成于低水进体系域发育时期,沉积相类型为湖泊沼泽相沉积。含油率为3.5%~24.8%,平均13.87%。其中尤以9号油页岩层分布广泛,层位稳定。油页岩的成因类型为混合型。根据油页岩工业划分标准,本区油页岩属于中灰分、中-高含油率的油页岩。
The structural type of the Willow Hezi Basin is half of the graben-type faulted basin. Oil shale was formed during the development of low-water system tract and sedimentary facies was lacustrine facies sedimentation. Oil content of 3.5% to 24.8%, an average of 13.87%. Among them, No. 9 oil shale is widely distributed and the horizon is stable. The genetic type of oil shale is mixed type. According to the industrial classification criteria of oil shale, oil shale in this area belongs to oil shale with middle-ash content and medium-high oil content.