REY+ACT redistribution in polymineral aggregates: a case study on monazite decomposition in pegmatite.
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| Title: | REY+ACT redistribution in polymineral aggregates: a case study on monazite decomposition in pegmatite. |
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| Alternate Title: | Преразпределение на REY+ACT елементи в полиминерални агрегати при разпад на монацит в пегматит |
| Authors: | Vassileva, Rossitsa D.1 rosivas@geology.bas.bg, Georgieva, Sylvina1 sylvina@geology.bas.bg, Cempírek, Jan2 jan.cemprek@gmail.com, Milenkov, Georgi1 georgimilenkov7@gmail.com, Škoda, Radek2 rskoda@sci.muni.cz |
| Source: | Review of the Bulgarian Geological Society. 2024, Vol. 85 Issue 2, p124-127. 4p. |
| Subjects: | Fluorapatite, Sphene, Monazite, Single crystals, Minerals, Apatite |
| Abstract: | Selected pegmatite dyke intruded within the gneiss-marble-amphibolite sequence of the Rhodope Metamorphic Complex was studied for its REY+ACT mineralization in attempt to assess the potential of these pegmatites for critical and strategic raw materials. Mineral composition of K-feldspar and albite is complemented by abundant common accessories of zircon, apatite, monazite, allanite, and titanite. The REY+ACT mineralization is presented as single euhedral crystals (zircon, thorianite, Y-Nb oxide, titanite and fluorapatite) or as complex multimineral nodule-like aggregates. The nodule core typically consists of decomposed Th-bearing monazite-(Ce) altered to different degree by intergrown Th-bearing apatite/thorite assemblage. Fluid-involved reactions led to mineral transformations and redistribution of the elements like LREE, Y, Th, U, and formation of the inhomogeneous allanite-(Ce)/REE-epidote rims enveloping the aggregated earlier phases. [ABSTRACT FROM AUTHOR] |
| Copyright of Review of the Bulgarian Geological Society is the property of Bulgarian Geological Society and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
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| Header | DbId: egs DbLabel: Engineering Source An: 181743045 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: REY+ACT redistribution in polymineral aggregates: a case study on monazite decomposition in pegmatite. – Name: TitleAlt Label: Alternate Title Group: TiAlt Data: Преразпределение на REY+ACT елементи в полиминерални агрегати при разпад на монацит в пегматит – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Vassileva%2C+Rossitsa+D%2E%22">Vassileva, Rossitsa D.</searchLink><relatesTo>1</relatesTo><i> rosivas@geology.bas.bg</i><br /><searchLink fieldCode="AR" term="%22Georgieva%2C+Sylvina%22">Georgieva, Sylvina</searchLink><relatesTo>1</relatesTo><i> sylvina@geology.bas.bg</i><br /><searchLink fieldCode="AR" term="%22Cempírek%2C+Jan%22">Cempírek, Jan</searchLink><relatesTo>2</relatesTo><i> jan.cemprek@gmail.com</i><br /><searchLink fieldCode="AR" term="%22Milenkov%2C+Georgi%22">Milenkov, Georgi</searchLink><relatesTo>1</relatesTo><i> georgimilenkov7@gmail.com</i><br /><searchLink fieldCode="AR" term="%22Škoda%2C+Radek%22">Škoda, Radek</searchLink><relatesTo>2</relatesTo><i> rskoda@sci.muni.cz</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Review+of+the+Bulgarian+Geological+Society%22">Review of the Bulgarian Geological Society</searchLink>. 2024, Vol. 85 Issue 2, p124-127. 4p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Fluorapatite%22">Fluorapatite</searchLink><br /><searchLink fieldCode="DE" term="%22Sphene%22">Sphene</searchLink><br /><searchLink fieldCode="DE" term="%22Monazite%22">Monazite</searchLink><br /><searchLink fieldCode="DE" term="%22Single+crystals%22">Single crystals</searchLink><br /><searchLink fieldCode="DE" term="%22Minerals%22">Minerals</searchLink><br /><searchLink fieldCode="DE" term="%22Apatite%22">Apatite</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Selected pegmatite dyke intruded within the gneiss-marble-amphibolite sequence of the Rhodope Metamorphic Complex was studied for its REY+ACT mineralization in attempt to assess the potential of these pegmatites for critical and strategic raw materials. Mineral composition of K-feldspar and albite is complemented by abundant common accessories of zircon, apatite, monazite, allanite, and titanite. The REY+ACT mineralization is presented as single euhedral crystals (zircon, thorianite, Y-Nb oxide, titanite and fluorapatite) or as complex multimineral nodule-like aggregates. The nodule core typically consists of decomposed Th-bearing monazite-(Ce) altered to different degree by intergrown Th-bearing apatite/thorite assemblage. Fluid-involved reactions led to mineral transformations and redistribution of the elements like LREE, Y, Th, U, and formation of the inhomogeneous allanite-(Ce)/REE-epidote rims enveloping the aggregated earlier phases. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Review of the Bulgarian Geological Society is the property of Bulgarian Geological Society and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.52215/rev.bgs.2024.85.2.124 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 4 StartPage: 124 Subjects: – SubjectFull: Fluorapatite Type: general – SubjectFull: Sphene Type: general – SubjectFull: Monazite Type: general – SubjectFull: Single crystals Type: general – SubjectFull: Minerals Type: general – SubjectFull: Apatite Type: general Titles: – TitleFull: REY+ACT redistribution in polymineral aggregates: a case study on monazite decomposition in pegmatite. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Vassileva, Rossitsa D. – PersonEntity: Name: NameFull: Georgieva, Sylvina – PersonEntity: Name: NameFull: Cempírek, Jan – PersonEntity: Name: NameFull: Milenkov, Georgi – PersonEntity: Name: NameFull: Škoda, Radek IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 05 Text: 2024 Type: published Y: 2024 Identifiers: – Type: issn-print Value: 00073938 Numbering: – Type: volume Value: 85 – Type: issue Value: 2 Titles: – TitleFull: Review of the Bulgarian Geological Society Type: main |
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