title: Upper Carboniferous and Permian biostratigraphy of the Middle Tianshan
metadata.name: dc.contributor.author
metadata.value: Djenchuraeva, Alexandra V.
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Getman, Olga F.
metadata.lang: -
metadata.name: dc.date.accessioned
metadata.value: 2019-04-01T16:16:20Z
metadata.lang: -
metadata.name: dc.date.available
metadata.value: 2019-04-01T16:16:20Z
metadata.lang: -
metadata.name: dc.date.issued
metadata.value: 2018-12
metadata.lang: -
metadata.name: dc.identifier.citation
metadata.value: Djenchuraeva A. V., Getman O. F. Upper Carboniferous and Permian biostratigraphy of the Middle Tianshan. Vestnik of Saint Petersburg University. Earth Sciences, 2018, vol. 63, issue 4, pp. 463–477.
metadata.lang: en_GB
metadata.name: dc.identifier.other
metadata.value: 10.21638/spbu07.2018.404
metadata.lang: -
metadata.name: dc.identifier.uri
metadata.value: http://hdl.handle.net/11701/15417
metadata.lang: -
metadata.name: dc.description.abstract
metadata.value: The biostratigraphic study of the upper Carboniferous and lower Permian stratotype sections
  in the Middle Tianshan of Kyrgyzstan enable us to identify foraminifera complexes
  that characterize certain intervals of the section, defined as foraminifera zones. In stratigraphic
  interval from the Kasimovian to Asselian stage, we distinguish seven foraminifera
  zones as follows: 1. Triticites komansuensis — Triticites procerulus, 2. Schwageriniformis arpaensis
  — T. turkestanensis, 3. Jigulites corpulentus — Daixina porrecta, 4. Daixina vasilkovskyi
  — Quasifusulina kodzhagulica, 5. Daixina (B.) bosbytauensis — Pseudodaixinoides kacagaricus,
  6. Occidentoschwagerina alpina, 7. Schwagerina moelleri — Grozdilovia (?) fecunda.
  These zones were distinguished based on the study of 350 species of fusulinides, including
  65 new endemic species (Djenchuraeva, Getman, 2007, 2010). Occurrence of endemic species
  in the zonal complexes hampers the correlation of these zones with coeval strata in
  other regions. However, it allows one to reconstruct sharp changes in the facial conditions
  of Foraminifera’s existence which resulted from increasing isolation of the eastern part of
  the Turkestan ocean. New endemic species are characterized by common features, such as
  small initial chamber, close coiling of the helix in the internal rotations and strong folding of
  septa in higher forms. Sedimentological observations help to restore depositional environment
  of the basin in the eastern part of the Middle Tien Shan. Djenchuraeva A. V. and Gonchar
  A. D. (2001) describe shallow litofacies and tempestites in the upper Carboniferous and
  Lower Permian sediments of this region. The study of the full composition of foraminifera complexes allows to compare them with the zonal subdivisions of various regions of Central
  Asia, Urals, Russian Platform and Donbas.
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 63; Issue 4
metadata.lang: -
metadata.name: dc.subject
metadata.value: stratotype sections
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: Carboniferous and Permian deposits
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: endemic foraminifera species
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: correlation of coeval deposits
metadata.lang: en_GB
metadata.name: dc.title
metadata.value: Upper Carboniferous and Permian biostratigraphy of the Middle Tianshan
metadata.lang: en_GB
metadata.name: dc.type
metadata.value: Article
metadata.lang: en_GB
resources.filename: 04-Djenchuraeva.pdf
resources.url: https://dspace.spbu.ru/bitstream/11701/15417/1/04-Djenchuraeva.pdf
resources.format: Adobe PDF
resources.size: 1,39 MB