title: Age and chronostratigraphic position of lacustrine-bog deposits in the Chernaya River basin in the north of the Bolshezemelskaya tundra according to the results of their 230Th/U- and 14C-dating
metadata.name: dc.contributor.author
metadata.value: Maksimov, Fedor E.
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Andreicheva, Ludmila N.
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Kuznetsov, Vladislav Yu.
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Grigoriev, Vasily A.
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Petrov, Alexei Yu.
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Levchenko, Snezhana B.
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Marchenko-Vagapova, Tatyana I.
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Baranova, Nadezhda G.
metadata.lang: -
metadata.name: dc.date.accessioned
metadata.value: 2021-08-20T19:05:45Z
metadata.lang: -
metadata.name: dc.date.available
metadata.value: 2021-08-20T19:05:45Z
metadata.lang: -
metadata.name: dc.date.issued
metadata.value: 2021-06
metadata.lang: -
metadata.name: dc.identifier.citation
metadata.value: Maksimov, F. E., Andreicheva, L. N., Kuznetsov, V. Yu., Grigoriev, V. A., Petrov, A. Yu., Levchenko, S. B., Marchenko-Vagapova, T. I., Baranova, N. G. (2021). Age and chronostratigraphic position of lacustrine-bog deposits in the Chernaya River basin in the north of the Bolshezemelskaya tundra according to the results of their 230Th/U- and 14C-dating. Vestnik of Saint Petersburg University. Earth Sciences, 66 (2), 289–309.
metadata.lang: en_GB
metadata.name: dc.identifier.other
metadata.value: https://doi.org/10.21638/spbu07.2021.206
metadata.lang: -
metadata.name: dc.identifier.uri
metadata.value: http://hdl.handle.net/11701/32805
metadata.lang: -
metadata.name: dc.description.abstract
metadata.value: The main goal of this study was to elucidate the chronostratigraphic position of the sediments
  of lacustrine-bog stratum from the Ch-14 section located in the sub-latitudinal sector of the
  Chernaya River in the north of the Bolshezemelskaya tundra. This study presents data on their
  numerical age and time of their formation, obtained by the parallel 230Th/U and 14С dating of
  organic-rich layers. According to the results of spore-pollen analysis obtained earlier, the lacustrine-
  bog sediments were attributed to the Byzovaya (Middle Valdai) interstadial, together with
  the lake and alluvial deposits from the Ch-3 and Ch-4 sections in the same sector of the Chernaya
  River. The 230Th/U and 14C age data are in good agreement with each other, especially for
  the lower boundary of the lacustrine-bog sediments of the Ch-14 section. The time range of the
  lacustrine-bog stratum accumulation is estimated to be approximately 13.7–13.3 to ~12.0 thousand
  years ago. Thus, its formation (10.5–6.5 m layer) did not occur in the Middle Valdai, but
  in the Late Valdai time from the beginning of Allerød to the beginning of the Younger Dryas
  cooling. It has been suggested that a certain delay of late glacial climatic events took place in
  the Bolshezemelskaya tundra compared with their age-related estimation by the Greenland isotope-
  oxygen stages. For the first time, the isochronous approximation approach was applied to
  obtain the 230Th/U age of such young terrestrial organic-rich deposits. Earlier this approach was
  usually used in dating similar sediments not younger than MIS-3. The geochronological results
  presented in this paper allow us to recommend the 230Th/U method for determining the age of
  late glacial organic-rich deposits and climate events correlated with them.
metadata.lang: en_GB
metadata.name: dc.language.iso
metadata.value: ru
metadata.lang: en_GB
metadata.name: dc.publisher
metadata.value: St Petersburg State University
metadata.lang: en_GB
metadata.name: dc.relation.ispartofseries
metadata.value: Vestnik of St Petersburg University. Earth Sciences;Volume 66; Issue 2
metadata.lang: -
metadata.name: dc.subject
metadata.value: Bolshezemelskaya tundra
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: buried organic-rich deposits
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: uranium-thorium (230Th/U) and radiocarbon (14С) dating methods
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: Late Glacial climate events
metadata.lang: en_GB
metadata.name: dc.title
metadata.value: Age and chronostratigraphic position of lacustrine-bog deposits in the Chernaya River basin in the north of the Bolshezemelskaya tundra according to the results of their 230Th/U- and 14C-dating
metadata.lang: en_GB
metadata.name: dc.type
metadata.value: Article
metadata.lang: en_GB
resources.filename: 289-309.pdf
resources.url: https://dspace.spbu.ru/bitstream/11701/32805/1/289-309.pdf
resources.format: Adobe PDF
resources.size: 2,12 MB