摘要
东濮凹陷是否有海侵发生 ,直接影响着油气资源的评价 .通过对钙质超微化石、沟鞭藻类、遗迹化石、枝管藻、鱼类等古生物化石资料和石盐中的溴 ( Br-)及溴氯系数 ( Br-× 1 0 -3/Cl-)、碳酸盐岩中氧和碳同位素 ( δ18O,δ13C)值、泥岩中的 w( Th) /w( U)值等地化资料分析研究 ,认为东濮凹陷早第三纪沙河街组三段。
Whether there was marine transgression in Dongpu depression influences the evaluation of its oil gas resource. According to the analyses of palaeontologic fossils, such as calareous nannofossil, dinoflagellata fossil, trace fossil, green algae fossil and fish fossil, and geochemical indexes, such as B r - and B r -×10 -3 /Cl - parameter in halite, oxygen and carbon isotope values(δ 18 O,δ 13 C) of carbonate rocks, Th/U ratio value in shale samples, it is held that marine transgression happened in ES 3 and ES 1 of Early Teritary Shahejie formation in Dongpu depression.
出处
《西安石油学院学报（自然科学版）》
2002年第1期20-23,31,共5页
Journal of Xi'an Petroleum Institute（Natural Science Edition)
