Abstract—

The results of palynological study of the middle–upper Eocene interval of the Kheu reference section are presented. The dinocyst zones such as Enneadocystaarcuata, Costacystabucina, Enneadocystapectiniformis, Rhombodiniumdraco, Reticulatosphaeraactinocoronata, and Talladinium? angulosum were recognized in the studied part of the section. Based on the first order calibrations with calcareous nannoplankton, their stratigraphic boundaries are established as well as the lowermost occurrences of stratigraphically important species are refined. New microplankton data suggest the early Lutetian age of the uppermost Cherkessk and Keresta formations; the Kuma Formation is dated by late Lutetian–earliest Priabonian, while the lowermost Belaya Glina Formation corresponds to the Priabonian. Analysis of ratios of marine and terrestrial palynomorphs in the Kheu section permits to interpret the paleoenvironments during the Lutetian–Priabonian in the studied part of the eastern Peri-Tethys.

中文翻译：

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来自Kheu参考剖面（北高加索地区Kabardino-Balkaria）中新世中新沉积的新孢粉学数据

摘要—

介绍了Kheu参考剖面中上始新统间隔的孢粉学研究结果。该dinocyst区域，如Enneadocysta arcuata，Costacysta bucina，Enneadocysta pectiniformis，Rhombodinium德拉科，Reticulatosphaera actinocoronata和Talladinium？gu在本节的研究部分中得到认可。基于钙质纳米浮游生物的一阶标定，确定了它们的地层边界，并细化了地层中最重要的物种。新的微浮游生物数据表明，最上面的Cherkessk和Keresta地层为Lutetian时代。库玛组的日期是路特田晚期-最早的ria邦时代，而最低的Belaya Glina层则对应于ria邦时代。通过分析Kheu剖面中海洋和陆地的古苔藓类植物的比例，可以解释东特提斯山脉东部Lutetian-Priabonian时期的古环境。