A preliminary study of the effect of alteration on breakage properties of andesites from Tállya and Recsk (Hungary).
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| Title: | A preliminary study of the effect of alteration on breakage properties of andesites from Tállya and Recsk (Hungary). |
|---|---|
| Alternate Title: | Preliminarno istraživanje utjecaja alteracije na svojstva usitnjavanja andezita iz kamenoloma Tállya i Recsk (Mađarska). |
| Authors: | Márkus, Izabella Rebeka1 izabella.markus@uni-miskolc.hu, Mucsi, Gábor1, Rácz, Ádám1 |
| Source: | Rudarsko-Geološko-Naftni Zbornik. 2026, Vol. 41 Issue 1, p93-108. 16p. |
| Subject Terms: | *Andesite, *Smectite, *Quarries & quarrying, *Size reduction of materials, *Mechanical behavior of materials |
| Geographic Terms: | Hungary |
| Abstract (English): | This preliminary study investigates the influence of post-magmatic alteration on the breakage behaviour of andesitic rocks during comminution, with particular emphasis on the Chemical Index of Alteration (CIA) and smectite content. Six representative samples from two Hungarian quarries (Recsk and Tállya) exhibiting broadly similar mineralogical and textural properties but varying degrees of alteration were subjected to single particle breakage tests across multiple size fractions. Although the limited dataset does not allow for broad generalisation, the results provide a first indication that increased CIA values and higher smectite contents are associated with greater fragmentation susceptibility, as reflected by elevated Axb parameters. The study demonstrates that alteration indices can provide valuable predictive information on breakage response in andesitic rocks. These findings suggest the importance of integrating alteration metrics alongside traditional mineralogical and textural parameters when evaluating the breakage behaviour of andesitic rocks for aggregates production. While smectite quantification highlights the role of secondary phyllosilicate minerals in reducing the strength of andesitic rocks, CIA offers a more broadly applicable measure of alteration intensity that may be transferable across different volcanic contexts. The results are presented as a case study that highlights the potential of CIA and smectite quantification as predictive tools, while acknowledging the need for further research with larger datasets to confirm these trends. [ABSTRACT FROM AUTHOR] |
| Abstract (Croatian): | Ova preliminarna studija istražuje utjecaj postmagmatske alteracije na ponašanje andezitnih stijena tijekom usitnjavanja s posebnim naglaskom na kemijski indeks alteracije (CIA) i sadržaj smektita. Šest reprezentativnih uzoraka iz dvaju mađarskih kamenoloma (Recsk i Tállya), koji pokazuju uglavnom slična mineralna i teksturna svojstva, ali različite stupnjeve alteracije, podvrgnuto je ispitivanjima lomljenja pojedinačnih čestica u više granulometrijskih frakcija. Iako ograničen broj podataka ne omogućuje široke generalizacije, rezultati pružaju početne pokazatelje da su viši CIA indeksi i veći sadržaji smektita povezani s povećanom sklonošću fragmentaciji, što se očituje kroz povišene Axb parametre. Studija pokazuje da indeksi alteracije mogu pružiti vrijedne prediktivne informacije o odgovoru andezita na usitnjavanje. Dobiveni rezultati upućuju na važnost uključivanja parametara alteracije uz tradicionalne mineralne i teksturne karakteristike prilikom procjene ponašanja andezitnih stijena u proizvodnji agregata. Kvantifikacija smektita naglašava ulogu sekundarnih filosilikatnih minerala u smanjenju čvrstoće andezitnih stijena, dok CIA predstavlja šire primjenjivu mjeru intenziteta alteracije koja se može primijeniti u različitim vulkanskim kontekstima. Rezultati se predstavljaju kao studija slučaja koja ističe potencijal CIA indeksa i kvantifikacije smektita kao alata za procjenu, uz naglasak na potrebu za dodatnim istraživanjima s većim brojem uzoraka radi potvrde uočenih trendova. [ABSTRACT FROM AUTHOR] |
| Database: | Energy & Power Source |
| FullText | Links: – Type: pdflink Text: Availability: 0 |
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| Header | DbId: enr DbLabel: Energy & Power Source An: 190735079 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: A preliminary study of the effect of alteration on breakage properties of andesites from Tállya and Recsk (Hungary). – Name: TitleAlt Label: Alternate Title Group: TiAlt Data: Preliminarno istraživanje utjecaja alteracije na svojstva usitnjavanja andezita iz kamenoloma Tállya i Recsk (Mađarska). – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Márkus%2C+Izabella+Rebeka%22">Márkus, Izabella Rebeka</searchLink><relatesTo>1</relatesTo><i> izabella.markus@uni-miskolc.hu</i><br /><searchLink fieldCode="AR" term="%22Mucsi%2C+Gábor%22">Mucsi, Gábor</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Rácz%2C+Ádám%22">Rácz, Ádám</searchLink><relatesTo>1</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Rudarsko-Geološko-Naftni+Zbornik%22">Rudarsko-Geološko-Naftni Zbornik</searchLink>. 2026, Vol. 41 Issue 1, p93-108. 16p. – Name: Subject Label: Subject Terms Group: Su Data: *<searchLink fieldCode="DE" term="%22Andesite%22">Andesite</searchLink><br />*<searchLink fieldCode="DE" term="%22Smectite%22">Smectite</searchLink><br />*<searchLink fieldCode="DE" term="%22Quarries+%26+quarrying%22">Quarries & quarrying</searchLink><br />*<searchLink fieldCode="DE" term="%22Size+reduction+of+materials%22">Size reduction of materials</searchLink><br />*<searchLink fieldCode="DE" term="%22Mechanical+behavior+of+materials%22">Mechanical behavior of materials</searchLink> – Name: SubjectGeographic Label: Geographic Terms Group: Su Data: <searchLink fieldCode="DE" term="%22Hungary%22">Hungary</searchLink> – Name: Abstract Label: Abstract (English) Group: Ab Data: This preliminary study investigates the influence of post-magmatic alteration on the breakage behaviour of andesitic rocks during comminution, with particular emphasis on the Chemical Index of Alteration (CIA) and smectite content. Six representative samples from two Hungarian quarries (Recsk and Tállya) exhibiting broadly similar mineralogical and textural properties but varying degrees of alteration were subjected to single particle breakage tests across multiple size fractions. Although the limited dataset does not allow for broad generalisation, the results provide a first indication that increased CIA values and higher smectite contents are associated with greater fragmentation susceptibility, as reflected by elevated Axb parameters. The study demonstrates that alteration indices can provide valuable predictive information on breakage response in andesitic rocks. These findings suggest the importance of integrating alteration metrics alongside traditional mineralogical and textural parameters when evaluating the breakage behaviour of andesitic rocks for aggregates production. While smectite quantification highlights the role of secondary phyllosilicate minerals in reducing the strength of andesitic rocks, CIA offers a more broadly applicable measure of alteration intensity that may be transferable across different volcanic contexts. The results are presented as a case study that highlights the potential of CIA and smectite quantification as predictive tools, while acknowledging the need for further research with larger datasets to confirm these trends. [ABSTRACT FROM AUTHOR] – Name: Abstract Label: Abstract (Croatian) Group: Ab Data: Ova preliminarna studija istražuje utjecaj postmagmatske alteracije na ponašanje andezitnih stijena tijekom usitnjavanja s posebnim naglaskom na kemijski indeks alteracije (CIA) i sadržaj smektita. Šest reprezentativnih uzoraka iz dvaju mađarskih kamenoloma (Recsk i Tállya), koji pokazuju uglavnom slična mineralna i teksturna svojstva, ali različite stupnjeve alteracije, podvrgnuto je ispitivanjima lomljenja pojedinačnih čestica u više granulometrijskih frakcija. Iako ograničen broj podataka ne omogućuje široke generalizacije, rezultati pružaju početne pokazatelje da su viši CIA indeksi i veći sadržaji smektita povezani s povećanom sklonošću fragmentaciji, što se očituje kroz povišene Axb parametre. Studija pokazuje da indeksi alteracije mogu pružiti vrijedne prediktivne informacije o odgovoru andezita na usitnjavanje. Dobiveni rezultati upućuju na važnost uključivanja parametara alteracije uz tradicionalne mineralne i teksturne karakteristike prilikom procjene ponašanja andezitnih stijena u proizvodnji agregata. Kvantifikacija smektita naglašava ulogu sekundarnih filosilikatnih minerala u smanjenju čvrstoće andezitnih stijena, dok CIA predstavlja šire primjenjivu mjeru intenziteta alteracije koja se može primijeniti u različitim vulkanskim kontekstima. Rezultati se predstavljaju kao studija slučaja koja ističe potencijal CIA indeksa i kvantifikacije smektita kao alata za procjenu, uz naglasak na potrebu za dodatnim istraživanjima s većim brojem uzoraka radi potvrde uočenih trendova. [ABSTRACT FROM AUTHOR] |
| PLink | https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=enr&AN=190735079 |
| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.17794/rgn.2026.1.8 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 16 StartPage: 93 Subjects: – SubjectFull: Andesite Type: general – SubjectFull: Smectite Type: general – SubjectFull: Quarries & quarrying Type: general – SubjectFull: Size reduction of materials Type: general – SubjectFull: Mechanical behavior of materials Type: general – SubjectFull: Hungary Type: general Titles: – TitleFull: A preliminary study of the effect of alteration on breakage properties of andesites from Tállya and Recsk (Hungary). Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Márkus, Izabella Rebeka – PersonEntity: Name: NameFull: Mucsi, Gábor – PersonEntity: Name: NameFull: Rácz, Ádám IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 01 Text: 2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 03534529 Numbering: – Type: volume Value: 41 – Type: issue Value: 1 Titles: – TitleFull: Rudarsko-Geološko-Naftni Zbornik Type: main |
| ResultId | 1 |
