下伏的 underlying
- 结果表明,区内凝析油与下伏的黑油同源,这暗示了其次生成因;
The result indicates that the condensate oil and the underlying black-oil are from the same source rock, which hints their secondary origin. - “杂色泥岩”上覆的白垩系清水河组为超覆,下伏的侏罗系西山窑组被削截。
The Cretaceous Qingshuihe Formation overlaps the variegated mudstone, while the Jurassic Xishanyao Formation is truncated by the variegated mudstone. - 华北石炭纪岩溶型铝土矿的主要物质来源为 下伏的晚寒武 世—中奥陶 世碳酸盐岩。
The material source of the Carboniferous karst type bauxite in North China mainly came from the underlying Late Cambrian—Middle Ordovician carbonate rock.
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