title: Geochemical characteristics of magnesiocarbonatites from Muostalaah apatite occurrence and Birikeen apatite deposit (Aldan-Stanovoy shield, South Yakutia, Russia)
metadata.name: dc.contributor.author
metadata.value: Ponomarev, Jean D.
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Doroshkevich, Anna G.
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Prokopyev, Ilya R.
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Chebotarev, Dmitry A.
metadata.lang: -
metadata.name: dc.date.accessioned
metadata.value: 2021-08-20T19:17:24Z
metadata.lang: -
metadata.name: dc.date.available
metadata.value: 2021-08-20T19:17:24Z
metadata.lang: -
metadata.name: dc.date.issued
metadata.value: 2021-06
metadata.lang: -
metadata.name: dc.identifier.citation
metadata.value: Ponomarev, J. D., Doroshkevich, A. G., Prokopyev, I. R., Chebotarev, D. A. (2021). Geochemical characteristics of magnesiocarbonatites from Muostalaah apatite occurrence and Birikeen apatite deposit (Aldan-Stanovoy shield, South Yakutia, Russia). Vestnik of Saint Petersburg University. Earth Sciences, 66 (2), 349–373.
metadata.lang: en_GB
metadata.name: dc.identifier.other
metadata.value: https://doi.org/10.21638/spbu07.2021.209
metadata.lang: -
metadata.name: dc.identifier.uri
metadata.value: http://hdl.handle.net/11701/32808
metadata.lang: -
metadata.name: dc.description.abstract
metadata.value: Apatite-bearing ore occurrence Muostalaah and phosphate deposit Birikeen are magnesiocarbonatite
  complexes of the Seligdar type, located within the Nimnyrskaya submeridional metallogenic
  domain in the Aldan-Stanovoy shield in South Yakutia, Russia. This study presents
  geochemical characteristics of carbonatites and adjacent apatite-bearing silicate rocks of the
  Birikeen apatite deposit and Muostalaah apatite occurrence. Comparison of these complexes
  with the Seligdar deposit and other magnesiocarbonatite complexes of the world was made.
  Based on the chemical analysis of the petrogenic components of the Muostalaah and Biriken
  carbonatites, it was concluded that these rocks belong to magnesiocarbonatites, similar
  to the magnesiocarbonatites of the Seligdar deposit. The chondrite-normalized REE spectra
  of magnesiocarbonatites and apatite rocks are characterized by LREE enrichment relative to
  HREE with average La/Yb(cn) ratios of 45 and 100 for the Muostalaah and Birikeen rocks, respectively. Most of the REE patterns are within the field of the world magnesiocarbonatites.
  The trace-elements abundances of carbonatites and apatite rocks record negative Nb, Pb, Sr,
  Zr, Hf and Ti anomalies and Th, U and REE enrichment. Сoncentrations of Th, U, Zr, and Hf
  are characterized by a wide spread of values. The trace-element patterns of the Birikeen and
  Muostalaah carbonatites are generally similar to the patterns of the world magnesiocarbonatites,
  including Seligdar rocks. Based on the results of isotopic studies of the Sm/Nd and Rb/
  Sr systems, it was concluded that the primary melts for the Muostalah and Birikeen carbonatites
  were formed from a long-lived enriched mantle source that separated from the depleted
  mantle in the Late Archean.
metadata.lang: en_GB
metadata.name: dc.description.sponsorship
metadata.value: Geochemical and isotope-geochemical studies of magnesiocarbonatites of the Muostalaakh ore
  occurrence and the Birikeen deposit were carried out at the expense of the RSF project 19-17-00019, the
  study of silicate rocks was carried out at the expense of the research project 0330-2016-0002.
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 2
metadata.lang: -
metadata.name: dc.subject
metadata.value: magnesiocarbonatites
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: Aldan-Stanowoy shield
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: enriched source
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: Sr-Nd isotopic characteristics
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: REE composition of rocks
metadata.lang: en_GB
metadata.name: dc.title
metadata.value: Geochemical characteristics of magnesiocarbonatites from Muostalaah apatite occurrence and Birikeen apatite deposit (Aldan-Stanovoy shield, South Yakutia, Russia)
metadata.lang: en_GB
metadata.name: dc.type
metadata.value: Article
metadata.lang: en_GB
resources.filename: 349-373.pdf
resources.url: https://dspace.spbu.ru/bitstream/11701/32808/1/349-373.pdf
resources.format: Adobe PDF
resources.size: 3,01 MB