upper jurassic-lower cretaceous strata
upper jurassic-lower cretaceous strata
上侏罗纪-下白垩统地层
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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The strata of Mesozoic and Cenozoic in the basin can be divided into three parts, Middle Jurassic (Longjiagou Formation ), Lower Cretaceous and Upper Miocene (Baode Formation ).
根据化石组合，龙家沟盆地的地层可划分为中侏罗统龙家沟组，上白垩统及上中新统保德组。
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