Radiochronological Studies of Modern Lake Sediments of the Kola Peninsula (Russia) Using Unsupported Pb-210 Isotope

2022 ◽  
pp. 175-177
Author(s):  
Anna Travkina
Keyword(s):  
Lake Sediments ◽  
Kola Peninsula

scholarly journals Holocene environmental changes in the Northern Khibiny mountains (Kola Peninsula) inferred by diatom analysis of lake sediments

2019 ◽  
pp. 91-101
Author(s):  
O. S. Shilova ◽  
F. A. Romanenko ◽  
V. V. Kolka ◽  
D. B. Denisov
Keyword(s):  
Lake Sediments ◽  
Kola Peninsula ◽  
Environmental Changes ◽  
Sediment Cores ◽  
Lacustrine Sediments ◽  
Early Holocene ◽  
Diatom Analysis ◽  
Weathering Processes ◽  
Time Changes ◽  
Evolution Of Vegetation

The article presents the results of diatom analysis of bottom sediment cores of Lake Shchuchye located in the northern part of the Khibiny Mountains. Data of radiocarbon dating of lacustrine sediments and comparison with previously published sections of lake sediments in the Kola Peninsula suggest that the accumulation of sediments in Shchuchye Lake began during the final stages of deglaciation in the early Holocene and continued uninterruptedly until the present time. Changes in the composition of diatom associations in sediments reflect alterations in the hydrodynamic regime of the lake associated with the isolation from the Goltsovoye Lake, influence of Kunyok River runoff, evolution of vegetation and weathering processes in the catchment area. We used concentration, variety and composition of species and distinguished 8 separate zones of diatoms. Climate changes in the Holocene are reflected directly in the change of the percentage of indicator species, and indirectly through changes in pH, etc. The early Holocene rise of temperature began in this region later than in the sea coastal area. It may reflect the pecularities of deglaciation, namely — late melting of alpine glaciers. Along with the evolutionary environmental changes some catastrophic events are reflected in the sediments of the Shchuchye Lake. For example, in early stages, there the yield of big quantity of terrigenous deposits into the lake was revealed produced by mud flows and erosion from slopes covered by scarce vegetation at that time. Mudflow processes probably led to the formation of a clear interlayer of terrigenous material in the biogenic sediments in the upper part of the section.

Influence of liming on metal burdens in lake sediments

2003 ◽  
Vol 107 ◽  
pp. 1349-1351
Author(s):  
T. Wällstedt ◽  
H. Borg
Keyword(s):  
Lake Sediments

Kola peninsula radwaste management in the framework of the Italian-Russian cooperation agreement for global partnership

2012 ◽  
pp. 61-70
Author(s):  
Massimiliano Nobile ◽  
Dmitry Izmailov ◽  
Antonino Spadoni ◽  
Oleg Uryvskiy
Keyword(s):  
Kola Peninsula ◽  
Cooperation Agreement ◽  
Global Partnership

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.

About the composition of meliphanite from nepheline syenite pegmatite of the Sakharjok massif (Kola Peninsula)

2018 ◽  
Vol 147 (2) ◽  
pp. 79-91 ◽  
Author(s):  
Lyalina L. М. ◽  
◽  
Kadyrova G. I. ◽  
Selivanova E. A. ◽  
Zolotarev A. A. jr. ◽  
...  
Keyword(s):  
Kola Peninsula ◽  
Nepheline Syenite
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