title: Chapter 4. Paleozoic granitoid magmatism of South and Middle Tien Shan in Uzbekistan
metadata.name: dc.contributor.author
metadata.value: Konopelko, Dmitry L.
metadata.lang: -
metadata.name: dc.date.accessioned
metadata.value: 2020-12-01T17:31:19Z
metadata.lang: -
metadata.name: dc.date.available
metadata.value: 2020-12-01T17:31:19Z
metadata.lang: -
metadata.name: dc.date.issued
metadata.value: 2020-07
metadata.lang: -
metadata.name: dc.identifier.other
metadata.value: https://doi.org/10.21638/11701/9785288060250.05
metadata.lang: -
metadata.name: dc.identifier.uri
metadata.value: http://hdl.handle.net/11701/21142
metadata.lang: -
metadata.name: dc.description.abstract
metadata.value: The Paleozoic evolution of the Southern and Middle Tien Shan terranes is generally associated
  with the history of two ocean basins - the Turkestan and Paleotethys. Ages of ophiolites indicate
  the opening of the oceans in Cambrian – Ordovician, and partial closure with formation of an
  island arc in the northern part of the basin in Ordovician - Silurian. At the northern margin of the
  Turkestan ocean, the northward subduction under the Middle Tien Shan continued until Devonian, which led to formation of an active margin with granitoids emplaced between 429 and 416 Ma.
  In the late Devonian, subduction-related magmatism terminated and the whole region developed
  as passive margin. Northward subduction resumed in the early Carboniferous and formed magmatic Andean-type belt exposed in the Chatkal-Kurama terrane. Late Carboniferous collision resulted
  in crust thickening and emplacement of postcollisional granitoids. Formation of postcollisional
  intrusions in different terranes took place in various tectonic settings. Shoshonitic granitoids of the
  Chatkal-Kurama terrane formed as a result of slab break off at postcollisional stage. Voluminous
  postcollisional magmatism of Kyzylkum can be explained by delamination of lower crust and its
  replacement by the material of astenospheric mantle. Coeval emplacement of geochemically contrasting granitoids in the North Nuratau fault zone could result from contemporaneous melting of
  different protoliths at different depths in a translithospheric shear zone.
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.subject
metadata.value: Chatkal-Kurama ranges
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: Kyzylkum
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: geodynamic evolution
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: postcollisional granites
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: U-Pb zircon dating
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: Sr-Nd-Pb-Hf isotopic geochemistry
metadata.lang: en_GB
metadata.name: dc.title
metadata.value: Chapter 4. Paleozoic granitoid magmatism of South and Middle Tien Shan in Uzbekistan
metadata.lang: en_GB
metadata.name: dc.type
metadata.value: Book chapter
metadata.lang: en_GB
resources.filename: 102-163.pdf
resources.url: https://dspace.spbu.ru/bitstream/11701/21142/1/102-163.pdf
resources.format: Adobe PDF
resources.size: 16,06 MB