Application of graphical analysis of taxonomical structure of diatom complexes in identification of critical conditions of the Neopleistocene lakes (on the example of Bibirevo section)

2019 ◽  
pp. 78-87
Author(s):  
Elena V. Bespalova
Keyword(s):  
Lake Sediments ◽  
Critical Points ◽  
Graphical Analysis ◽  
Volga Region ◽  
Critical Conditions ◽  
Ancient Lake ◽  
Diatom Complexes

Ancient lake sediments of Bibirevo section in the Yaroslavl and Kostroma Volga region are studied by means of graphical analysis of taxonomical structure of diatom complexes. This method allowed to record critical points (change of areas of stability) in the development of a Neopleistocene lake during the transition from stage to stage, as well as from phase to phase.

Analysis of Rybinsk and Ivankovo reservoirs diatom complexes and phytoplankton associations long-term transformations

2019 ◽  
pp. 83-86
Author(s):  
Lev V. Razumovsky ◽  
Vikenty L. Razumovsky
Keyword(s):  
Bottom Sediments ◽  
Methodological Approach ◽  
Graphical Analysis ◽  
Comprehensive Analysis ◽  
Diatom Complexes

As a result of monitoring, a unified methodological approach was formulared for the ecosystems of the Ivankovsky and Rybinsk reservoirs, with comprehensive analysis of phytoplankton associations and diatom complexes from bottom sediments. In addition to traditional forms of hydrobiological analysis, the author's method of graphical analysis was applied.

Modern and ancient lake sediments

1980 ◽  
Vol 34 (3-4) ◽  
pp. 227
Author(s):  
George W. Kipphut
Keyword(s):  
Lake Sediments ◽  
Ancient Lake

scholarly journals DIATOM COMPLEXES OF THE IMANDRA LAKE SEDIMENTS IN THE AREA AFFECTED BY HEATED WATER FROM THE KOLA NUCLEAR POWER PLANT

2015 ◽  
pp. 10 ◽  
Author(s):  
Дмитрий Борисович Денисов ◽  
Владимир Андреевич Даувальтер ◽  
Николай Александрович Кашулин ◽  
Dmitry Denisov ◽  
Vladimir Dauvalter ◽  
...  
Keyword(s):  
Power Plant ◽  
Nuclear Power Plant ◽  
Lake Sediments ◽  
Nuclear Power ◽  
Heated Water ◽  
Diatom Complexes ◽  
Imandra Lake

Modern and ancient lake sediments

1980 ◽  
Vol 15 (4) ◽  
pp. 413
Author(s):  
A.D. Stewart
Keyword(s):  
Lake Sediments ◽  
Ancient Lake

Interglacial Deposits at Birch Creek, Northeast Interior Alaska

1991 ◽  
Vol 35 (1) ◽  
pp. 41-52 ◽  
Author(s):  
Mary E. Edwards ◽  
Patricia F. McDowell
Keyword(s):  
Lake Sediments ◽  
Lake Sediment ◽  
Radiocarbon Dating ◽  
Ancient Lake ◽  
High Exposure ◽  
Interior Alaska ◽  
M Sequence ◽  
Modern Landscape ◽  
Thaw Lakes

AbstractA 12-m sequence of lake sediment and peat in a 45-m high exposure on Birch Creek, northeast Alaska, contains pollen of Picea, Betula, Alnus and Populus, and wood of Picea and Populus. This sequence, which may represent 10,000 yr of more of accumulation, is beyond the limit of radiocarbon dating. It lies between two units of loess; the underlying loess lies above the Old Crow Tephra, recently dated at 149,000 ± 13,000 yr B.P. The lake sediments probably were deposited during the last interglaciation (isotope substage 5e) and subsequently buried by Wisconsinan loess. Analogs for the ancient lake may be deep, long-lived thaw lakes that are present in the modern landscape. When Birch Creek is correlated with other sites across nonglaciated Alaska and northwest Canada, there appears to be a common interglacial signal in sediments overlying the Old Crow Tephra.

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