title: Tectonic structure and development of the “depression/ uplift” transition zones, Northern Tien Shan
metadata.name: dc.contributor.author
metadata.value: Przhiyalgovskii, Eugeny S.
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Morozov, Yuriy A.
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Leonov, Mikhail G.
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Rybin, Anatoliy K.
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Lavrushina, Ekaterina V.
metadata.lang: -
metadata.name: dc.date.accessioned
metadata.value: 2021-02-11T20:36:33Z
metadata.lang: -
metadata.name: dc.date.available
metadata.value: 2021-02-11T20:36:33Z
metadata.lang: -
metadata.name: dc.date.issued
metadata.value: 2020-12
metadata.lang: -
metadata.name: dc.identifier.citation
metadata.value: Przhiyalgovskii, E. S., Morozov, Yu. A., Leonov, M. G., Rybin, A. K., Lavrushina, E. V. (2020). Tectonic structure and development of the “depression/ uplift” transition zones, Northern Tien Shan. Vestnik of Saint Petersburg University. Earth Sciences, 65 (4), 760–781.
metadata.lang: en_GB
metadata.name: dc.identifier.other
metadata.value: https://doi.org/10.21638/spbu07.2020.409
metadata.lang: -
metadata.name: dc.identifier.uri
metadata.value: http://hdl.handle.net/11701/23893
metadata.lang: -
metadata.name: dc.description.abstract
metadata.value: This article presents data on the structure of transition zones from areas of relative downwarping
  (intramountain depressions) to anticlinal uplifts dividing them. The geological and geophysical
  data obtained by the authors in recent years in different areas of Northern Tien Shan are considered
  and discussed in order to compare the structure and tectonic evolution of key objects.
  A comparative analysis of the depression/uplift tectonic zones in different regions indicates a
  fundamental similarity in their structure. These areas of gradient vertical movements are zones
  of concentrated deformation. We describe ensembles of structures formed at the same time in
  sedimentary cover and in basement rocks. Similar structural features are due to the common
  tectonic evolution of basins and ridges as parts of a unified activation structure of the Paleozoic
  folded belt. Over a long period of time, from the Oligocene to the Pliocene inclusive, the depressions
  of Northern Tien Shan developed under conditions of sedimentary subsidence, probably
  by the type of pull-apart structures in a latitudinally oriented region of plastic shear deformation.
  The relatively quiet tectonic setting of this stage is reflected in the lithological features of
  the sedimentary complexes. The next stage, which began about 3 Ma, was marked not only by
  the emergence of a high-altitude relief and the accumulation of molasse, but also by a change of
  tectonic regime to transpression. The generally flexible bending of the foundation surface in the
  steep sides of the depressions, to some extent complicated by uplifts, was accompanied by the
  formation of extensive detachments and thrust-folded structural ensembles in the sedimentary
  cover of the depressions. At the same time, contrary to traditional ideas, the volumes of disintegrated
  basement rocks demonstrate significant plasticity, while the lateral pressure of the side
  ledges was transmitted for many kilometers into the depressions inside the sedimentary cover.
metadata.lang: en_GB
metadata.name: dc.description.sponsorship
metadata.value: This research was carried out with the financial support of the Project of the Russian Science
  Foundation No. 16-17-10059 at the Scientific Station of the Russian Academy of Sciences in Bishkek.
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 65; Issue 4
metadata.lang: -
metadata.name: dc.subject
metadata.value: “depression/uplift” transition zones
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: intramountain depressions
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: pull-apart structures
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: transpression
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: plastic deformations of basement
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: North Tien Shan
metadata.lang: en_GB
metadata.name: dc.title
metadata.value: Tectonic structure and development of the “depression/ uplift” transition zones, Northern Tien Shan
metadata.lang: en_GB
metadata.name: dc.type
metadata.value: Article
metadata.lang: en_GB
resources.filename: 760-781.pdf
resources.url: https://dspace.spbu.ru/bitstream/11701/23893/1/760-781.pdf
resources.format: Adobe PDF
resources.size: 3,34 MB