Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Natalia Efremenko"'
Autor:
Natalia Kulik, Natalia Efremenko, Vera Strakhovenko, Natalia Belkina, Galina Borodulina, Ekaterina Gatalskaya, Viktor Malov, Igor Tokarev
Publikováno v:
Water, Vol 15, Iss 5, p 964 (2023)
This paper presents the results of seasonal observations of the geochemical composition of the waters of the large tributaries of Lake Onego. The mineralogy and geochemistry of the suspended matter and the isotopic composition (oxygen-18 and deuteriu
Externí odkaz:
https://doaj.org/article/94c6ad7692b84f44b21e2713bdce65f3
Publikováno v:
Transactions of the Karelian Research Centre of the Russian Academy of Sciences, Iss 4, Pp 62-74 (2020)
The article deals with the chemical balance and transformation of lithophile elements (Fe, Mn, Si, and Al) and heavy metals (Cu, Zn, Cd, Ni, and Pb) in Lake Onego. They were found to arrive in the lake from various sources (streamflow, precipitation,
Externí odkaz:
https://doaj.org/article/3d73d0d3633048c3a0061f191fd7076e
Publikováno v:
Transactions of the Karelian Research Centre of the Russian Academy of Sciences, Iss 9, Pp 53-61 (2015)
The chemical composition of Lake Ladoga sediments was studied. Nutrients were found to accumulate in the oxidized top layer of the sediments in the deep-water part of the lake. The content of P, N, Fe, Mn increased with water depth and where the sedi
Externí odkaz:
https://doaj.org/article/b48d3b64d2744dc3ba8c063b9a0cf55d
Publikováno v:
Minerals, Vol 10, Iss 5, p 440 (2020)
The morphology and mineralogical and geochemical compositions of the freshwater ferromanganese formations (FMF) of Lake Onego (NW Russia) and small lakes located in its catchment area were studied. The lake waters, bottom sediments and FMF were analy
Externí odkaz:
https://doaj.org/article/00beffbf72894f6fa10083f71e5d2f65
Autor:
Natalia Efremenko, Anna Ludikova, V. D. Strakhovenko, Mikhail Zobkov, Maxim Potakhin, N. V. Kulik, Dmitry Subetto, Ekaterina Ovdina, Alexander Rybalko, Natalia Belkina
Publikováno v:
Quaternary International. :120-133
Data on the mineralogy and geochemistry of rare earth elements (REE + Y) in water, suspended matter and stratified sediment cores from different parts of Lake Onego are presented. The study finds that the dissolved REE + Y in the water from different
Autor:
Natalia Kulik, Natalia Efremenko, Natalia Belkina, Vera Strakhovenko, Ekaterina Gatalskaya, Alexander Orlov
Publikováno v:
Quaternary International. :134-144
Lake Onego is the second largest body of water in Europe (S lake mirrors = 9720 km2, V = 295 km3, S catchment area = 53100 km2), located at the junction of two geological structures (the Fennoscandian Shield and the Russian Platform) is characterized
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::634d8406474915c4338e7fdfdc1584a6
https://doi.org/10.5194/egusphere-egu22-9411
https://doi.org/10.5194/egusphere-egu22-9411
Autor:
Irina Danilenko, Natalia Belkina, A. V. Maslov, Dmitry Subetto, Ekaterina Ovdina, V. D. Strakhovenko, Natalia Efremenko
Publikováno v:
Journal of Great Lakes Research. 46:443-455
The analysis of both the mineralogical and geochemical composition and the stratigraphy of Holocene sediments of Lake Onego provided a novel interpretation of their genesis. Their mineral composition suggests that Holocene bottom sediments generally
Autor:
N. V. Kulik, Natalia Efremenko
Contamination of the World Oceans with microplastics (MPs) is one of the most discussed environmental problems of the last decade. MPs are able to accumulate on their surface pollutants present in water in very low concentrations. Concentrations of p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::11416e4cf10c1032dfe9bf37190f1edc
https://doi.org/10.5194/egusphere-egu21-4438
https://doi.org/10.5194/egusphere-egu21-4438
Publikováno v:
Minerals
Volume 10
Issue 5
Minerals, Vol 10, Iss 440, p 440 (2020)
Volume 10
Issue 5
Minerals, Vol 10, Iss 440, p 440 (2020)
The morphology and mineralogical and geochemical compositions of the freshwater ferromanganese formations (FMF) of Lake Onego (NW Russia) and small lakes located in its catchment area were studied. The lake waters, bottom sediments and FMF were analy