title: Paleomagnetism of the Ordovician section of the Mishina Gora (Pskov oblast): a record of the ancient geomagnetic field and restrictions on the age of the Mishinogorsk explosive structure
metadata.name: dc.contributor.author
metadata.value: Pavlov, Vladimir E.
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Pasenko, Aleksandr M.
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Dronov, Andrey V.
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Chernyshov, Sergey P.
metadata.lang: -
metadata.name: dc.date.accessioned
metadata.value: 2022-10-03T12:37:27Z
metadata.lang: -
metadata.name: dc.date.available
metadata.value: 2022-10-03T12:37:27Z
metadata.lang: -
metadata.name: dc.date.issued
metadata.value: 2022-03
metadata.lang: -
metadata.name: dc.identifier.citation
metadata.value: Pavlov, V. E., Pasenko, A. M., Dronov, A. V., Chernyshov, S. P. (2022). Paleomagnetism of the Ordovician section of the Mishina Gora (Pskov oblast): a record of the ancient geomagnetic field and restrictions on the age of the Mishinogorsk explosive structure. Vestnik of Saint Petersburg University. Earth Sciences, 67 (1), 4–19. https://doi.org/10.21638/spbu07.2022.101
metadata.lang: en_GB
metadata.name: dc.identifier.other
metadata.value: https://doi.org/10.21638/spbu07.2022.101
metadata.lang: -
metadata.name: dc.identifier.uri
metadata.value: http://hdl.handle.net/11701/38046
metadata.lang: -
metadata.name: dc.description.abstract
metadata.value: Paleomagnetic studies of the Ordovician rocks of the Mishina Gora explosive structure
  (Gdovsky district, Pskov region) have been carried out. Based on the results of thermal
  magnetic cleaning, two stable magnetization components S and P have been identified.
  These components have similar unblocking temperature ranges (~200–600°C), but their
  mean directions are statistically different the difference of their mean directions are statistically
  significant. Refional fold test indicates the postfolding age of the component S and
  prefolding age of the component P. Prefolding age of the latter is supported by the positive result of the local fold-test which has been carried out in the scale of the studied section.
  Comparison of the paleomagnetic pole calculated from the S component with the Apparent
  Polar Wander Path for the East European Platform definitely indicates the Late Permian-
  Early Triassic age of this component, which, in combination with the available geological
  observations, determines the time range of the formation of the Mishina Gora structure as
  ~370–250 million years ago. The ancient component of the magnetization P has the same
  direction as the components, which have been identified earlier in a number of coeval sections
  of the North-West of Russia, Estonia, and Scandinavia and which have been considered
  to be primary. The corresponding paleomagnetic poles are widely used in Paleozoic
  geodynamic and tectonic paleoreconstructions with the participation of the Baltic paleocontinent.
  A positive fold test result for the P component validates the use of these poles
  for paleoreconstructions. For the stratigraphic interval, which includes the upper Floian,
  Dapinian, and lower 2/3 of the Darrivilian stages, a magnetostratigraphic section has been
  constructed containing a single magnetozone corresponding to the reverse polarity of the
  geomagnetic field. Thus, the magnetostratigraphic data do not support the hypothesis of the
  existence of intervals of normal polarity within the Ordovician geomagnetic superchron of
  reverse polarity (Moyero superchron).
metadata.lang: en_GB
metadata.name: dc.description.sponsorship
metadata.value: This work was supported by the Russian Science Foundation, grant No. 20-17-00198 (sampling,
  analysis and interpretation of data) and the Ministry of Science and Higher Education of the Russian
  Federation under contract No. 14.Y26.31.0029 within the framework of the implementation of the Decree
  of the Government of the Russian Federation No. 220 (preparation of the article).
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 67; Issue 1
metadata.lang: -
metadata.name: dc.subject
metadata.value: Ordovician superchron
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: paleomagnetism
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: Mishina Gora
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: Moyero superchron
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: Ordovician
metadata.lang: en_GB
metadata.name: dc.title
metadata.value: Paleomagnetism of the Ordovician section of the Mishina Gora (Pskov oblast): a record of the ancient geomagnetic field and restrictions on the age of the Mishinogorsk explosive structure
metadata.lang: en_GB
metadata.name: dc.type
metadata.value: Article
metadata.lang: en_GB
resources.filename: 01.pdf
resources.url: https://dspace.spbu.ru/bitstream/11701/38046/1/01.pdf
resources.format: Adobe PDF
resources.size: 4,92 MB