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通过对我国东部苏北盆地洪泽凹陷和临清坳陷德州凹陷第三系陆相沉积泥岩中生物标志物分析,检测到了丰富的甲藻甾烷异构体和24-正丙基胆甾烷。结合它们的分布特征与产出的地层微体古生物资料,笔者推断它们可能是海侵作用的产物。
Based on the biomarker analysis of the terrestrial sedimentary mudstones of the Tertiary in the Hongze Sag of the Subei Basin in the eastern Su-Bei Basin and the Deqing Sag of the Linqing Depression, abundant dinoflastosane isomers and 24-n-propylcholestane . Combined with their distributional characteristics and the resulting stratigraphic microgravity paleontological data, I conclude that they may be the product of transgression.