title: Clinopyroxene from eudialyte lujavrites complex of the Lovozero alkaline massif (Kola Peninsula): Сharacteristics of the chemical composition and evolution
metadata.name: dc.contributor.author
metadata.value: Sedova, Anna M.
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Evdokimov, Mikhail D.
metadata.lang: -
metadata.name: dc.date.accessioned
metadata.value: 2018-05-29T12:53:29Z
metadata.lang: -
metadata.name: dc.date.available
metadata.value: 2018-05-29T12:53:29Z
metadata.lang: -
metadata.name: dc.date.issued
metadata.value: 2018-03
metadata.lang: -
metadata.name: dc.identifier.citation
metadata.value: Sedova A. M., Evdokimov M. D. Clinopyroxene from eudialyte lujavrites complex of the Lovozero alkaline massif (Kola Peninsula): Сharacteristics of the chemical composition and evolution. Vestnik of Saint Petersburg University. Earth Sciences, 2018, vol. 63, issue 1, pp. 69–102.
metadata.lang: en_GB
metadata.name: dc.identifier.other
metadata.value: 10.21638/11701/spbu07.2018.105
metadata.lang: -
metadata.name: dc.identifier.uri
metadata.value: http://hdl.handle.net/11701/10251
metadata.lang: -
metadata.name: dc.description.abstract
metadata.value: The Lovozero alkaline massif is the largest known alkaline layered intrusion (Semenov E. V.
  et al., 1974). For the first time this paper examines the evolution compositions of clinopyroxenes
  from the third intrusive phase introduced into the main magmatic stage (the complex
  of eudialyte Lujavrites). A gap has been filled in for a detailed study of pyroxene, as the main
  melanocratic rock-forming mineral of the massif. Petrographic features of clinopyroxenes
  in various associations among the main rocks of the complex (eudialyte lujavrites, foyaites
  and porphyry lujavrites) have been studied. The first approach that takes into account the
  variational diversity of zonal crystals of clinopyroxenes and their morphology. Zonality and
  morphology of crystals were studied in detail. The possible presence of Zr-johansenite and
  Ti—Zr-aegirine minals is shown. The general and particular trends in the evolution of the
  chemical composition corresponding to zonality are outlined. It was established that there is no
  direct connection between the chemical composition of clinopyroxenes (in terms of the content
  Ti—Zr-egirin and Zr-johansenite minals in them) with the stratigraphic rock level. It has been
  established that rocks of similar clinopyroxenes are grouped in the same location at different
  depths. For the first time, the highest content of ZrO2 (3.09 wt. %) was detected in the rocks
  of the eudialyte lujavrita complex, despite the fact that in these rocks is present eudialyte as
  widely distributed the zirconium phase and a possible scheme for the enrichment of rocks by
  this element is proposed.
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 1
metadata.lang: -
metadata.name: dc.subject
metadata.value: pyroxenes
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: eudialyte lujavrites
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: Lovozero massif
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: zirconium
metadata.lang: en_GB
metadata.name: dc.title
metadata.value: Clinopyroxene from eudialyte lujavrites complex of the Lovozero alkaline massif (Kola Peninsula): Сharacteristics of the chemical composition and evolution
metadata.lang: en_GB
metadata.name: dc.type
metadata.value: Article
metadata.lang: en_GB
resources.filename: 05-Sedova.pdf
resources.url: https://dspace.spbu.ru/bitstream/11701/10251/1/05-Sedova.pdf
resources.format: Adobe PDF
resources.size: 5,06 MB