Minerals-concentrators of rare-earth elements in basites-ultrabasites intrusives of Norilsk district
The conditions of being, the history of formation and transformation of minerals-concentrators of rare-earth elements (REE) - apatite minerals group and epidote minerals group, have been studied and described. Allanite has been determined to be mostly developed in the halos of the fluid action a sol...
Published in: | Proceedings of higher educational establishments. Geology and Exploration |
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Sergo Ordzhonikidze Russian State University for Geological Prospecting
2017
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Online Access: | https://doi.org/10.32454/0016-7762-2017-3-56-65 https://doaj.org/article/22aada95d16741449077f1c2fcf599bb |
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ftdoajarticles:oai:doaj.org/article:22aada95d16741449077f1c2fcf599bb 2023-05-15T17:25:04+02:00 Minerals-concentrators of rare-earth elements in basites-ultrabasites intrusives of Norilsk district Yu. D. Gritsenko A. A. Serova 2017-06-01T00:00:00Z https://doi.org/10.32454/0016-7762-2017-3-56-65 https://doaj.org/article/22aada95d16741449077f1c2fcf599bb RU rus Sergo Ordzhonikidze Russian State University for Geological Prospecting https://www.geology-mgri.ru/jour/article/view/234 https://doaj.org/toc/0016-7762 https://doaj.org/toc/2618-8708 0016-7762 2618-8708 doi:10.32454/0016-7762-2017-3-56-65 https://doaj.org/article/22aada95d16741449077f1c2fcf599bb Известия высших учебных заведений: Геология и разведка, Vol 0, Iss 3, Pp 56-65 (2017) пневматолитовые хлорапатит фторапатит алланит-(се) эволюция флюидов послерудный низкоградный метаморфизм редкоземельные элементы спектры распределения Geology QE1-996.5 article 2017 ftdoajarticles https://doi.org/10.32454/0016-7762-2017-3-56-65 2023-03-19T01:40:27Z The conditions of being, the history of formation and transformation of minerals-concentrators of rare-earth elements (REE) - apatite minerals group and epidote minerals group, have been studied and described. Allanite has been determined to be mostly developed in the halos of the fluid action a solid contact of sulfide ores containing rich pneu matolytic mineralization of the platinum-group elements (PGM) and gold. Apatite and allanite are found among sulfides and in rims of the fluid action over the drops of sulphides in the horizon of the disseminated ores. The composition of Apatite-I has evolved from a OH-containing chlorapatite to chlorapatite containing up to 2,3 wt. % of lanthanides; Apatite-II - from OH-Cl-bearing fluorapatite to fluorapatite. The lanthanides reieased during replacement of chlorapatite-I by fluorapatite-II, probably entering the composition of the produced pneumatoiytic alianite-(Ce). In the areas of mineral ores with imposed metamorphism, the pneumatoiytic apatite partially or totally is substituted by hydroxyapatite-III, allanite - by water-containing allanite with the content of the epidote and clinozoisite minals - 30-35 mol. %. The spectra of REE distribution in apatite have been determined to reflect more accurately their ratios in rocks, the spectra of REE distribution for allanite are characterized by a steeper slope from lighter to heavier lanthanides. The ratio of La, Ce and Nd in chlorapatite corresponds to the distribution of these elements as in the host picrite horizon, as well in the rocks of the intrusives as a whole. Allanite, in return, is more enriched in cerium and lanthanum and depleted in neodymium. Article in Journal/Newspaper norilsk Directory of Open Access Journals: DOAJ Articles Norilsk ENVELOPE(88.203,88.203,69.354,69.354) Proceedings of higher educational establishments. Geology and Exploration 3 56 65 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
Russian |
topic |
пневматолитовые хлорапатит фторапатит алланит-(се) эволюция флюидов послерудный низкоградный метаморфизм редкоземельные элементы спектры распределения Geology QE1-996.5 |
spellingShingle |
пневматолитовые хлорапатит фторапатит алланит-(се) эволюция флюидов послерудный низкоградный метаморфизм редкоземельные элементы спектры распределения Geology QE1-996.5 Yu. D. Gritsenko A. A. Serova Minerals-concentrators of rare-earth elements in basites-ultrabasites intrusives of Norilsk district |
topic_facet |
пневматолитовые хлорапатит фторапатит алланит-(се) эволюция флюидов послерудный низкоградный метаморфизм редкоземельные элементы спектры распределения Geology QE1-996.5 |
description |
The conditions of being, the history of formation and transformation of minerals-concentrators of rare-earth elements (REE) - apatite minerals group and epidote minerals group, have been studied and described. Allanite has been determined to be mostly developed in the halos of the fluid action a solid contact of sulfide ores containing rich pneu matolytic mineralization of the platinum-group elements (PGM) and gold. Apatite and allanite are found among sulfides and in rims of the fluid action over the drops of sulphides in the horizon of the disseminated ores. The composition of Apatite-I has evolved from a OH-containing chlorapatite to chlorapatite containing up to 2,3 wt. % of lanthanides; Apatite-II - from OH-Cl-bearing fluorapatite to fluorapatite. The lanthanides reieased during replacement of chlorapatite-I by fluorapatite-II, probably entering the composition of the produced pneumatoiytic alianite-(Ce). In the areas of mineral ores with imposed metamorphism, the pneumatoiytic apatite partially or totally is substituted by hydroxyapatite-III, allanite - by water-containing allanite with the content of the epidote and clinozoisite minals - 30-35 mol. %. The spectra of REE distribution in apatite have been determined to reflect more accurately their ratios in rocks, the spectra of REE distribution for allanite are characterized by a steeper slope from lighter to heavier lanthanides. The ratio of La, Ce and Nd in chlorapatite corresponds to the distribution of these elements as in the host picrite horizon, as well in the rocks of the intrusives as a whole. Allanite, in return, is more enriched in cerium and lanthanum and depleted in neodymium. |
format |
Article in Journal/Newspaper |
author |
Yu. D. Gritsenko A. A. Serova |
author_facet |
Yu. D. Gritsenko A. A. Serova |
author_sort |
Yu. D. Gritsenko |
title |
Minerals-concentrators of rare-earth elements in basites-ultrabasites intrusives of Norilsk district |
title_short |
Minerals-concentrators of rare-earth elements in basites-ultrabasites intrusives of Norilsk district |
title_full |
Minerals-concentrators of rare-earth elements in basites-ultrabasites intrusives of Norilsk district |
title_fullStr |
Minerals-concentrators of rare-earth elements in basites-ultrabasites intrusives of Norilsk district |
title_full_unstemmed |
Minerals-concentrators of rare-earth elements in basites-ultrabasites intrusives of Norilsk district |
title_sort |
minerals-concentrators of rare-earth elements in basites-ultrabasites intrusives of norilsk district |
publisher |
Sergo Ordzhonikidze Russian State University for Geological Prospecting |
publishDate |
2017 |
url |
https://doi.org/10.32454/0016-7762-2017-3-56-65 https://doaj.org/article/22aada95d16741449077f1c2fcf599bb |
long_lat |
ENVELOPE(88.203,88.203,69.354,69.354) |
geographic |
Norilsk |
geographic_facet |
Norilsk |
genre |
norilsk |
genre_facet |
norilsk |
op_source |
Известия высших учебных заведений: Геология и разведка, Vol 0, Iss 3, Pp 56-65 (2017) |
op_relation |
https://www.geology-mgri.ru/jour/article/view/234 https://doaj.org/toc/0016-7762 https://doaj.org/toc/2618-8708 0016-7762 2618-8708 doi:10.32454/0016-7762-2017-3-56-65 https://doaj.org/article/22aada95d16741449077f1c2fcf599bb |
op_doi |
https://doi.org/10.32454/0016-7762-2017-3-56-65 |
container_title |
Proceedings of higher educational establishments. Geology and Exploration |
container_issue |
3 |
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56 |
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65 |
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1766116366864089088 |