Mineralogy of Phoscorites of the Arbarastakh Complex (Republic of Sakha, Yakutia, Russia)
The Arbarastakh ultramafic carbonatite complex is located in the southwestern part of the Siberian Craton and contains ore-bearing carbonatites and phoscorites with Zr-Nb-REE mineralization. Based on the modal composition, textural features, and chemical compositions of minerals, the phoscorites fro...
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ftdoajarticles:oai:doaj.org/article:f9369d886148451f8447b594aafa480a 2023-05-15T18:06:44+02:00 Mineralogy of Phoscorites of the Arbarastakh Complex (Republic of Sakha, Yakutia, Russia) Mikhail Nikolaevich Kruk Anna Gennadievna Doroshkevich Ilya Romanovich Prokopyev Ivan Aleksandrovich Izbrodin 2021-05-01T00:00:00Z https://doi.org/10.3390/min11060556 https://doaj.org/article/f9369d886148451f8447b594aafa480a EN eng MDPI AG https://www.mdpi.com/2075-163X/11/6/556 https://doaj.org/toc/2075-163X doi:10.3390/min11060556 2075-163X https://doaj.org/article/f9369d886148451f8447b594aafa480a Minerals, Vol 11, Iss 556, p 556 (2021) phoscorites Arbarastakh alkaline-ultrabasic carbonatite complex complex mineralogy chemical evolution Aldan shield QE351-399.2 article 2021 ftdoajarticles https://doi.org/10.3390/min11060556 2022-12-31T13:59:11Z The Arbarastakh ultramafic carbonatite complex is located in the southwestern part of the Siberian Craton and contains ore-bearing carbonatites and phoscorites with Zr-Nb-REE mineralization. Based on the modal composition, textural features, and chemical compositions of minerals, the phoscorites from Arbarastakh can be subdivided into two groups: FOS 1 and FOS 2. FOS 1 contains the primary minerals olivine, magnetite with isomorphic Ti impurities, phlogopite replaced by tetraferriphlogopite along the rims, and apatite poorly enriched in REE. Baddeleyite predominates among the accessory minerals in FOS 1. Zirconolite enriched with REE and Nb and pyrochlore are found in smaller quantities. FOS 2 has a similar mineral composition but contains much less olivine, magnetite is enriched in Mg, and the phlogopite is enriched in Ba and Al. Of the accessory minerals, pyrochlore predominates and is enriched in Ta, Th, and U; baddeleyite is subordinate and enriched in Nb. Chemical and textural differences suggest that the phoscorites were formed by the sequential introduction of different portions of the melt. The melt that formed the FOS 1 was enriched in Zr and REE relative to the FOS 2 melt; the melt that formed the FOS 2 was enriched in Al, Ba, Nb, Ta, Th, U, and, to a lesser extent, Sr. Article in Journal/Newspaper Republic of Sakha Yakutia Directory of Open Access Journals: DOAJ Articles Aldan ENVELOPE(129.546,129.546,63.447,63.447) Sakha Minerals 11 6 556 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
phoscorites Arbarastakh alkaline-ultrabasic carbonatite complex complex mineralogy chemical evolution Aldan shield QE351-399.2 |
spellingShingle |
phoscorites Arbarastakh alkaline-ultrabasic carbonatite complex complex mineralogy chemical evolution Aldan shield QE351-399.2 Mikhail Nikolaevich Kruk Anna Gennadievna Doroshkevich Ilya Romanovich Prokopyev Ivan Aleksandrovich Izbrodin Mineralogy of Phoscorites of the Arbarastakh Complex (Republic of Sakha, Yakutia, Russia) |
topic_facet |
phoscorites Arbarastakh alkaline-ultrabasic carbonatite complex complex mineralogy chemical evolution Aldan shield QE351-399.2 |
description |
The Arbarastakh ultramafic carbonatite complex is located in the southwestern part of the Siberian Craton and contains ore-bearing carbonatites and phoscorites with Zr-Nb-REE mineralization. Based on the modal composition, textural features, and chemical compositions of minerals, the phoscorites from Arbarastakh can be subdivided into two groups: FOS 1 and FOS 2. FOS 1 contains the primary minerals olivine, magnetite with isomorphic Ti impurities, phlogopite replaced by tetraferriphlogopite along the rims, and apatite poorly enriched in REE. Baddeleyite predominates among the accessory minerals in FOS 1. Zirconolite enriched with REE and Nb and pyrochlore are found in smaller quantities. FOS 2 has a similar mineral composition but contains much less olivine, magnetite is enriched in Mg, and the phlogopite is enriched in Ba and Al. Of the accessory minerals, pyrochlore predominates and is enriched in Ta, Th, and U; baddeleyite is subordinate and enriched in Nb. Chemical and textural differences suggest that the phoscorites were formed by the sequential introduction of different portions of the melt. The melt that formed the FOS 1 was enriched in Zr and REE relative to the FOS 2 melt; the melt that formed the FOS 2 was enriched in Al, Ba, Nb, Ta, Th, U, and, to a lesser extent, Sr. |
format |
Article in Journal/Newspaper |
author |
Mikhail Nikolaevich Kruk Anna Gennadievna Doroshkevich Ilya Romanovich Prokopyev Ivan Aleksandrovich Izbrodin |
author_facet |
Mikhail Nikolaevich Kruk Anna Gennadievna Doroshkevich Ilya Romanovich Prokopyev Ivan Aleksandrovich Izbrodin |
author_sort |
Mikhail Nikolaevich Kruk |
title |
Mineralogy of Phoscorites of the Arbarastakh Complex (Republic of Sakha, Yakutia, Russia) |
title_short |
Mineralogy of Phoscorites of the Arbarastakh Complex (Republic of Sakha, Yakutia, Russia) |
title_full |
Mineralogy of Phoscorites of the Arbarastakh Complex (Republic of Sakha, Yakutia, Russia) |
title_fullStr |
Mineralogy of Phoscorites of the Arbarastakh Complex (Republic of Sakha, Yakutia, Russia) |
title_full_unstemmed |
Mineralogy of Phoscorites of the Arbarastakh Complex (Republic of Sakha, Yakutia, Russia) |
title_sort |
mineralogy of phoscorites of the arbarastakh complex (republic of sakha, yakutia, russia) |
publisher |
MDPI AG |
publishDate |
2021 |
url |
https://doi.org/10.3390/min11060556 https://doaj.org/article/f9369d886148451f8447b594aafa480a |
long_lat |
ENVELOPE(129.546,129.546,63.447,63.447) |
geographic |
Aldan Sakha |
geographic_facet |
Aldan Sakha |
genre |
Republic of Sakha Yakutia |
genre_facet |
Republic of Sakha Yakutia |
op_source |
Minerals, Vol 11, Iss 556, p 556 (2021) |
op_relation |
https://www.mdpi.com/2075-163X/11/6/556 https://doaj.org/toc/2075-163X doi:10.3390/min11060556 2075-163X https://doaj.org/article/f9369d886148451f8447b594aafa480a |
op_doi |
https://doi.org/10.3390/min11060556 |
container_title |
Minerals |
container_volume |
11 |
container_issue |
6 |
container_start_page |
556 |
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1766178410200039424 |