title: New data concerning the age and composition of intrusion complexes of the northern part of Balygychan-Sugoi rift depression (North- Eastern Russia)
metadata.name: dc.contributor.author
metadata.value: Petrova, Marina N.
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Petrov, Semen Yu.
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Kurapov, Mikhail Yu.
metadata.lang: -
metadata.name: dc.date.accessioned
metadata.value: 2021-11-10T12:16:19Z
metadata.lang: -
metadata.name: dc.date.available
metadata.value: 2021-11-10T12:16:19Z
metadata.lang: -
metadata.name: dc.date.issued
metadata.value: 2021-09
metadata.lang: -
metadata.name: dc.identifier.citation
metadata.value: Petrova, M. N., Petrov, S. Yu., Kurapov, M. Yu. (2021). New data concerning the age and composition of intrusion complexes of the northern part of Balygychan-Sugoi rift depression (North- Eastern Russia). Vestnik of Saint Petersburg University. Earth Sciences, 66 (3), 595–615.
metadata.lang: en_GB
metadata.name: dc.identifier.other
metadata.value: https://doi.org/10.21638/spbu07.2021.309
metadata.lang: -
metadata.name: dc.identifier.uri
metadata.value: http://hdl.handle.net/11701/33541
metadata.lang: -
metadata.name: dc.description.abstract
metadata.value: The Balagychan-Sugoi (Omsukchan) riftogeneous depression is described by different authors
  both as a part of the Okhotsk-Chukotka volcanic belt (OCVB) and as a separate structure.
  The unique Dukat gold and silver deposit and many other ore deposits including rare metal,
  such as Arylah, Lunnoe, Askold, Mechta, Tidid, Krasin, are associated with this structure. All
  mentioned objects are located in the southern part of the depression and from this point of
  view are connected with the OCVB structure. Evolution of the Balygychan-Sugoi depression is closely related to the stages of magmatic evolution of the region. In the article, these stages
  are characterized based on the data from intrusion bodies located in the northern part (Naygain
  depression). This part is the most outlying from the OCVB and less studied. For the first
  time, the U-Pb zircon and baddeleyite dating as well as the description of petrographic and
  geochemical composition have been carried out for Mandychan gabbro-diorite and Nayahan
  gabbro leucogranite intrusion complexes from the northern part of the depression and for
  the Omsukchan leucogranite complex. The Late Jurassic — Early Cretaceous intrusions of
  the Mandychansk complex dated as 143–139 Ma marks the beginning of the rift depression
  formation. The intrusion of granitoids of the Nayahan and Omsukchan complexes dated as
  84–85 and 81–82 Ma correspondently is related with the new stage of magmatic activity, synchronous
  to the OCVB formation. The petrographic and geochemical compositions of these
  granitoids indicate their belonging to the I-type granites, which are typical for extension environments,
  whereas leucogranites of the Omsukchan complex have some features corresponding
  to A-type granites.
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 3
metadata.lang: -
metadata.name: dc.subject
metadata.value: Balagycha-Sugoi riftogenic band
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: intrusive formations
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: U-Pb dating
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: petrogeochemical characteristics
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: granitoids
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: Northeast Russia
metadata.lang: en_GB
metadata.name: dc.title
metadata.value: New data concerning the age and composition of intrusion complexes of the northern part of Balygychan-Sugoi rift depression (North- Eastern Russia)
metadata.lang: en_GB
metadata.name: dc.type
metadata.value: Article
metadata.lang: en_GB
resources.filename: 595-615.pdf
resources.url: https://dspace.spbu.ru/bitstream/11701/33541/1/595-615.pdf
resources.format: Adobe PDF
resources.size: 3,75 MB