HIGH RESOLUTION CYCLOSTRATIGRAPHIC STUDY ON THE THIRD MEMBER OF SHAHEJIE FORMATION OF DRILL CORE NIU38 IN THE DONGYING DEPRESSION,SHANDONG PROVINCE
HIGH RESOLUTION CYCLOSTRATIGRAPHIC STUDY ON THE THIRD MEMBER OF SHAHEJIE FORMATION OF DRILL CORE NIU38 IN THE DONGYING DEPRESSION,SHANDONG PROVINCE
复制标题
DOI：
--
复制
发表时间：
2007
期刊：
影响因子：
--
通讯作者：
Yao Yi-min
中科院分区：
文献类型：
--
作者：
Yao Yi-min
山东东营胜利油田牛38钻井岩心伽马测井资料。在该岩心处，沙河街组（SHJF）分为4段。沙河街组三段（3MSHJF）与北美始新世绿河组（Green River组）可以通过Knightia的棍棒鱼化石进行近似对比。根据对3MSHJF的古地磁研究，C18n和C18n的边界。1n和C18n。3263m钻芯1r年龄估计为38.975MaBP。根据光谱分析和数字滤波方法的结果，给出了3MSHJF内岩石地层边界的若干年龄估计，其中3MSHJF中下部边界估计为36.9MaBP。在这一边界附近，滤过的进动周期的振幅发生了显著变化，可以与P等人（2001）在ODP71线1052站点上报道的36.7MaBP的相似模式进行比较。
The gamma-ray logs obtained from the Niu38 drill core located near the Shengli Oilfield in Dongying,Shandong Province.At this drill core,the Shahejie Formation(SHJF) is divided into 4 members.The Third Member of the Shahejie Formation(3MSHJF) can be approximately correlated to the Eocene Green River Formation in North America,on the basis of clupeid fish fossils of Knightia.According to the palaeomagnetic study on the 3MSHJF,the boundary between C18n.1n and C18n.1r of the drill core at depth 3 263m is estimated to be 38.975MaBP in age.Based on the results obtained from spectral analysis and digital filter methods,several age estimates of lithostratigraphic boundaries within the 3MSHJF have been given,among which the boundary between the middle and lower parts of the 3MSHJF is estimated to be 36.9MaBP.Near this boundary,there is significant change in the amplitude of filtered precession cycles,which can be compared to similar patterns at 36.7MaBP,reported from the Site 1052 of ODP71 Line by Plike et al.(2001).