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Armeriapollen from Alexandrian Deposits in Byelorus

 

作者: ValentinaL. Shalaboda,  

 

期刊: Grana  (Taylor Available online 1993)
卷期: Volume 32, issue sup2  

页码: 60-65

 

ISSN:0017-3134

 

年代: 1993

 

DOI:10.1080/00173139309428981

 

出版商: Taylor & Francis Group

 

数据来源: Taylor

 

摘要:

A description is given of fossil pollen of the genusArmeriaWilld. (lines A and B), found for the first time in stratigraphical sections in Byelorus dated to the Alexandrian (Likhvin, Mindel-Riss). The fossil pollen was studied with a scanning electron microscope (SEM), and the same procedure was used to examine four species of recent pollen ofArmeria(two lines) which today grow on the East European Plain (onlyArmeria vulgarisWilld. grows in Byelorus). Descriptions of the recent pollen ofArmeria labradoricaWallr.,A. maritima(Mill.) Willd.,A. scabraPall, et Schult. and A.vulgarisWilld. are given separately for each line. On the basis of the data obtained from the recent pollen, fossil pollen was identified to species. The data allow us to conclude that no less than two species ofArmeriagrew in Byelorus during the Alexandrian Interglacial. They are identified asArmeria vulgaris(lines A and B) and A. aff.scabra(lines A and B). Thus, it has been possible to relate fragmentary pollen spectra from different boreholes and compare them with spectra from the Matveev Rov outcrop which is the stratotype of the Alexandrian Interglacial in Byelorus. It is demonstrated thatArmeriaappeared in the final phases of vegetational evolution during the interglacial, prior to the advance of the Dnieper (Riss) Glaciation. It was also possible to identify even fragments of fossil pollen ofArmeriaby SEM with the help of the keys produced in the parallel SEM study of recent pollen, since the main specific differences are seen in the elements of exine structure.

 

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