Peer-reviewed articles 17,970 +



Title: DIATOMS OF SEDIMENTS OF PLESCHEEVO LAKE (RUSSIA) AS INDICATORS OF ENVIRONMENTAL CHANGES IN HOLOCENE

DIATOMS OF SEDIMENTS OF PLESCHEEVO LAKE (RUSSIA) AS INDICATORS OF ENVIRONMENTAL CHANGES IN HOLOCENE
O. Palagushkina;L. Frolova;E. Zinnatova;L. Kosareva;D. Nurgaliev
1314-2704
English
18
5.1
Bottom sediments of continental limnic ecosystems are of great interest to researchers as paleoarchives of changes taking place in the environment. Use of diatoms allows to reconstruct the main stages of life of lakes against the background of changing environmental conditions caused by natural and anthropogenic causes. The core of the bottom sediments selected from Pleshcheyevo Lake (Russia). The maximum age of the core was 5070±150 year BP (Holocene period). Diatom analysis of 73 samples revealed 127 taxa. In the number of valves dominated by cosmopolitan, alkaliphilic benthic, oligogalobic indifferent species. In addition, three mesohalobic species were found Campylodiscus clypeus (Ehrb.) Ehrb., Navicula halophila (Grun.) Cl., Surirella ovalis Br?b.. The diatom analyses indicated two periods in existing of the lake. The first period reflected the stage with a low water level, later - increasing the water level and the formation of a deep, less mineralized water body in a cool, humid climate. Changes in the diatom complex in the upper part of core reflected a rise in water levels, decrease in mineralization and a slight decrease in a temperature of environment.
conference
18th International Multidisciplinary Scientific GeoConference SGEM 2018
18th International Multidisciplinary Scientific GeoConference SGEM 2018, 02-08 July, 2018
Proceedings Paper
STEF92 Technology
International Multidisciplinary Scientific GeoConference-SGEM
Bulgarian Acad Sci; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Russian Acad Sci; Serbian Acad Sci & Arts; Slovak Acad Sci; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; World Acad Sci; European Acad Sci, Arts & Letters; Ac
283-288
02-08 July, 2018
website
cdrom
1328
diatoms; Holocene; Pleshcheyevo Lake; palaeoenvironment