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结合ODP184航次及2008年“国际地层表”等研究成果,对莺歌海盆地基准井DF1-1-11井岩屑地层(630~3508 m)的有孔虫定量分析资料进行研究,建立可靠的生物地层及年代地层格架,并通过对钻井中有孔虫丰度、分异度、浮游比例、组合特征及古水深估算分析,讨论了DF1-1-11井中中新世以来的沉积环境演化。研究结果对建立整个莺歌海盆地及邻区生物地层和年代地层格架具重要的借鉴意义。
Based on the results of ODP184 voyage and 2008 “International Stratigraphic Table” and other research results, the quantitative data of foraminifera in the lithosphere formation (630 ~ 3508 m) of the DF1-1-11 well in the Yinggehai Basin was studied and established Reliable biostratigraphy and chronostratigraphic framework and discussed the sedimentation of the DF1-1-11 well since the Miocene through the estimation and analysis of foraminiferal abundance, differentiation, planktonic proportion, assemblage and palaeo-water depth in drilling wells Environmental evolution. The results of this study have important reference significance for establishing the biostratigraphy and chronostratigraphic framework of the entire Yinggehai Basin and its adjacent areas.