KFU. Card publication. Local, regional and global components of environmental variability of the Southern Urals in the Neopleistocene-Holocene on the basis of petromagnetic parameters of modern lakes sediments

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LOCAL, REGIONAL AND GLOBAL COMPONENTS OF ENVIRONMENTAL VARIABILITY OF THE SOUTHERN URALS IN THE NEOPLEISTOCENE-HOLOCENE ON THE BASIS OF PETROMAGNETIC PARAMETERS OF MODERN LAKES SEDIMENTS

Form of presentation

Conference proceedings in Russian journals and collections

Year of publication

2024

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Authors, employees of KFU

Antonenko Vadim Vyacheslavovich, author

Kosarev Viktor Evgenevich, author

Kosareva Lina Raisovna, author

Kuzina Dilyara Mtygullovna, author

Nurgalieva Nuriya Gavazovna, author

Yusupova Anastasiya Rafailevna, author

Bibliographic description in the original language

Local, regional and global components of environmental variability of the Southern Urals in the Neopleistocene-Holocene on the basis of petromagnetic parameters of modern lakes sediments / Lina Kosareva, Victor Kosarev, Dilyara Kuzina, Anastasia Yusupova, Nuriia Nourgalieva, Vadim Antonenko // XV International Conference and School «Problems of Geocosmos — 2024» (GC2024-PERM036). — P. 36.

Annotation

XV International Conference and School «Problems of Geocosmos — 2024»

Keywords

Southern Urals, lake sediments, Holocene, magnetic properties, frequency analysis, Wavelet transformation

The name of the journal

XV International Conference and School «Problems of Geocosmos — 2024»

On-line resource for training course

http://dspace.kpfu.ru/xmlui/bitstream/handle/net/185002/GC2024_PERM036.pdf?sequence=1&isAllowed=y

Please use this ID to quote from or refer to the card

https://repository.kpfu.ru/eng/?p_id=307955&p_lang=2

Resource files

File name	Size (MB)	Format
GC2024_PERM036.pdf	0,03	pdf	show / download

Full metadata record

Field DC	Value	Language
dc.contributor.author	Antonenko Vadim Vyacheslavovich	ru_RU
dc.contributor.author	Kosarev Viktor Evgenevich	ru_RU
dc.contributor.author	Kosareva Lina Raisovna	ru_RU
dc.contributor.author	Kuzina Dilyara Mtygullovna	ru_RU
dc.contributor.author	Nurgalieva Nuriya Gavazovna	ru_RU
dc.contributor.author	Yusupova Anastasiya Rafailevna	ru_RU
dc.date.accessioned	2024-01-01T00:00:00Z	ru_RU
dc.date.available	2024-01-01T00:00:00Z	ru_RU
dc.date.issued	2024	ru_RU
dc.identifier.citation	Local, regional and global components of environmental variability of the Southern Urals in the Neopleistocene-Holocene on the basis of petromagnetic parameters of modern lakes sediments / Lina Kosareva, Victor Kosarev, Dilyara Kuzina, Anastasia Yusupova, Nuriia Nourgalieva, Vadim Antonenko // XV International Conference and School «Problems of Geocosmos — 2024» (GC2024-PERM036). — P. 36.	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/eng/?p_id=307955&p_lang=2	ru_RU
dc.description.abstract	XV International Conference and School «Problems of Geocosmos — 2024»	ru_RU
dc.description.abstract	Paleogeographic reconstructions are particularly important for areas with extreme climatic conditions, such as high-altitude, polar, arid or borders between geographical zones. In these places the slightest climatic changes cause significant shifts in regional variations of various biological, geophysical, meteorological, litochemical and other parameters. One of these regions is the Southern Urals, which is a climatic zone between the Eastern European and Western Siberian plains. The study of the magnetic minerals (and their properties) of lakes sediments considered more and more as one of the essential step in the reconstruction of lake sedimentation conditions. However, the magnetic properties of the Southern Urals lakes sediments are poorly studied and described only in several articles. Therefore, this paper shows the possibility of identifying regional and local components of environmental variability according to the variations of petromagnetic parameters and their components based on the data obtained by the team. Lake Turgoyak, Bolshoy Kisegach, Bolshoe and Maloe Miassovo, Bannoe and Sabacty, located on the eastern slope of the South Ural Mountains were selected for the study. For each lake AMS-measurements of 14C (7 - 10 dates) were carried out, which allowed to create fairly accurate age models. However, in some cases age models need to be refined with taking into account additional information based on lithological, mineralogical, geochemical, paleobiological and other data that may allow distinguish the boundaries of sharp paleoclimate changes. The sediments of these lakes are Neopleistocene and Holocene age. Magnetic susceptibility (MS), natural remanent magnetization (NRM), dia/paramagnetic component of magnetic susceptibility (kp) have been selected as the main parameters for comparison. And also for the magnetic characterization of the Southern Urals lakes sediments the ratios of the main hysteresis parameters (Bcr/Bc and Mrs/Ms) are proposed. Magnetic properties have been measured in step of 2 cm along the entire length of the selected core column of each lake. It should be noted that the Neopleistocene and Holocene differ significantly in the behaviour of the variations and values of magnetic parameters. Filtration of MS, NRM and kp curves were used to isolate regional components represented by long-period fluctuations in petromagnetic parameters. In the initial stage, a frequency analysis of the studied curves was performed. Wavelet transformation was used as a tool for analysis the frequency characteristics of data series. Morlet wavelet was chosen as the mother wavelet.	ru_RU
dc.language.iso	ru	ru_RU
dc.subject	Southern Urals	ru_RU
dc.subject	lake sediments	ru_RU
dc.subject	Holocene	ru_RU
dc.subject	magnetic properties	ru_RU
dc.subject	frequency analysis	ru_RU
dc.subject	Wavelet transformation	ru_RU
dc.title	Local, regional and global components of environmental variability of the Southern Urals in the Neopleistocene-Holocene on the basis of petromagnetic parameters of modern lakes sediments	ru_RU
dc.type	Conference proceedings in Russian journals and collections	ru_RU