The problem of the genesis of the Mesoarchean aluminosilicate rocks from the Karelian craton and their possible use as a quartz-feldspar raw material
The article presents original data obtained in the study of the chemical and mineral compositions of the Late Archean aluminosilicate rocks (formerly called silicites) from the Koikari and Elmus structures of the Vedlozero-Segozero greenstone belt of the Karelian craton (Central Karelia). A comprehe...
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Saint-Petersburg Mining University
2022
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ftdoajarticles:oai:doaj.org/article:3b3bb82979aa449eae62589d0445576a 2023-05-15T17:01:28+02:00 The problem of the genesis of the Mesoarchean aluminosilicate rocks from the Karelian craton and their possible use as a quartz-feldspar raw material Natalya I. Kondrashova Tatyana P. Bubnova Pavel V. Medvedev 2022-11-01T00:00:00Z https://doi.org/10.31897/PMI.2022.65 https://doaj.org/article/3b3bb82979aa449eae62589d0445576a EN RU eng rus Saint-Petersburg Mining University https://pmi.spmi.ru/index.php/pmi/article/view/15749?setLocale=en_US https://doaj.org/toc/2411-3336 https://doaj.org/toc/2541-9404 2411-3336 2541-9404 doi:10.31897/PMI.2022.65 https://doaj.org/article/3b3bb82979aa449eae62589d0445576a Записки Горного института, Vol 257, Pp 720-731 (2022) feldspar-quartz aluminosilicate rocks quartz-feldspar concentrate elmus and koikari structures vedlozero-segozero greenstone belt karelian craton Mining engineering. Metallurgy TN1-997 article 2022 ftdoajarticles https://doi.org/10.31897/PMI.2022.65 2023-01-22T01:30:25Z The article presents original data obtained in the study of the chemical and mineral compositions of the Late Archean aluminosilicate rocks (formerly called silicites) from the Koikari and Elmus structures of the Vedlozero-Segozero greenstone belt of the Karelian craton (Central Karelia). A comprehensive study of these formations revealed their complex genesis as a result of the late imposition of hydrothermal and metamorphic alteration on sedimentary and volcanic-sedimentary rocks of feldspar-quartz composition. Due to the superimposed metasomatic (temperature?) impact on feldspar-quartz siltstones, Fe was removed from microinclusions in quartz and feldspar and its oxides were concentrated along the grain boundaries. Minerals such as monazite, parisite, allanite are also located either along the grain boundaries of quartz and feldspars, or together with calcite they fill microfractures, which makes it possible to get rid of them when preparing quartz-feldspar concentrates using various beneficiation technologies. According to most indicators limited by GOSTs, individual samples in their natural form meet the requirements for quartz-feldspar raw materials for use as part of batch in the production of diverse types of glass. Additional beneficiation of the feedstock (grinding, screening into narrow classes and further magnetic separation) leads to a decrease in Fe2O3 content to normalized values. The resulting quartz-feldspar concentrates with various particle sizes can be used in the production of building material and fine ceramics (sanitary and ceramic products, facing and finishing tiles, artistic, household porcelain and faience). The homogeneity of the mineral and chemical composition, the possibility of compact extraction and beneficiation (including in mobile small-sized installations) increase the prospects and competitiveness of this non-traditional feldspar raw material from Central Karelia. Article in Journal/Newspaper karelian Directory of Open Access Journals: DOAJ Articles Journal of Mining Institute Online first |
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topic |
feldspar-quartz aluminosilicate rocks quartz-feldspar concentrate elmus and koikari structures vedlozero-segozero greenstone belt karelian craton Mining engineering. Metallurgy TN1-997 |
spellingShingle |
feldspar-quartz aluminosilicate rocks quartz-feldspar concentrate elmus and koikari structures vedlozero-segozero greenstone belt karelian craton Mining engineering. Metallurgy TN1-997 Natalya I. Kondrashova Tatyana P. Bubnova Pavel V. Medvedev The problem of the genesis of the Mesoarchean aluminosilicate rocks from the Karelian craton and their possible use as a quartz-feldspar raw material |
topic_facet |
feldspar-quartz aluminosilicate rocks quartz-feldspar concentrate elmus and koikari structures vedlozero-segozero greenstone belt karelian craton Mining engineering. Metallurgy TN1-997 |
description |
The article presents original data obtained in the study of the chemical and mineral compositions of the Late Archean aluminosilicate rocks (formerly called silicites) from the Koikari and Elmus structures of the Vedlozero-Segozero greenstone belt of the Karelian craton (Central Karelia). A comprehensive study of these formations revealed their complex genesis as a result of the late imposition of hydrothermal and metamorphic alteration on sedimentary and volcanic-sedimentary rocks of feldspar-quartz composition. Due to the superimposed metasomatic (temperature?) impact on feldspar-quartz siltstones, Fe was removed from microinclusions in quartz and feldspar and its oxides were concentrated along the grain boundaries. Minerals such as monazite, parisite, allanite are also located either along the grain boundaries of quartz and feldspars, or together with calcite they fill microfractures, which makes it possible to get rid of them when preparing quartz-feldspar concentrates using various beneficiation technologies. According to most indicators limited by GOSTs, individual samples in their natural form meet the requirements for quartz-feldspar raw materials for use as part of batch in the production of diverse types of glass. Additional beneficiation of the feedstock (grinding, screening into narrow classes and further magnetic separation) leads to a decrease in Fe2O3 content to normalized values. The resulting quartz-feldspar concentrates with various particle sizes can be used in the production of building material and fine ceramics (sanitary and ceramic products, facing and finishing tiles, artistic, household porcelain and faience). The homogeneity of the mineral and chemical composition, the possibility of compact extraction and beneficiation (including in mobile small-sized installations) increase the prospects and competitiveness of this non-traditional feldspar raw material from Central Karelia. |
format |
Article in Journal/Newspaper |
author |
Natalya I. Kondrashova Tatyana P. Bubnova Pavel V. Medvedev |
author_facet |
Natalya I. Kondrashova Tatyana P. Bubnova Pavel V. Medvedev |
author_sort |
Natalya I. Kondrashova |
title |
The problem of the genesis of the Mesoarchean aluminosilicate rocks from the Karelian craton and their possible use as a quartz-feldspar raw material |
title_short |
The problem of the genesis of the Mesoarchean aluminosilicate rocks from the Karelian craton and their possible use as a quartz-feldspar raw material |
title_full |
The problem of the genesis of the Mesoarchean aluminosilicate rocks from the Karelian craton and their possible use as a quartz-feldspar raw material |
title_fullStr |
The problem of the genesis of the Mesoarchean aluminosilicate rocks from the Karelian craton and their possible use as a quartz-feldspar raw material |
title_full_unstemmed |
The problem of the genesis of the Mesoarchean aluminosilicate rocks from the Karelian craton and their possible use as a quartz-feldspar raw material |
title_sort |
problem of the genesis of the mesoarchean aluminosilicate rocks from the karelian craton and their possible use as a quartz-feldspar raw material |
publisher |
Saint-Petersburg Mining University |
publishDate |
2022 |
url |
https://doi.org/10.31897/PMI.2022.65 https://doaj.org/article/3b3bb82979aa449eae62589d0445576a |
genre |
karelian |
genre_facet |
karelian |
op_source |
Записки Горного института, Vol 257, Pp 720-731 (2022) |
op_relation |
https://pmi.spmi.ru/index.php/pmi/article/view/15749?setLocale=en_US https://doaj.org/toc/2411-3336 https://doaj.org/toc/2541-9404 2411-3336 2541-9404 doi:10.31897/PMI.2022.65 https://doaj.org/article/3b3bb82979aa449eae62589d0445576a |
op_doi |
https://doi.org/10.31897/PMI.2022.65 |
container_title |
Journal of Mining Institute |
container_volume |
Online first |
_version_ |
1766054577258364928 |