Diffusion-driven orbicular dynamics of metamorphic granites.
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| Title: | Diffusion-driven orbicular dynamics of metamorphic granites. |
|---|---|
| Authors: | Saha, Biswajit1 (AUTHOR) biswajitsaha.1987.bs@gmail.com, Roy, Manas Kumar2 (AUTHOR) manask.roy@gmail.com, Sarkar, Bikash Kumar3 (AUTHOR) biku.mdm@gmail.com, Mitra, Swayambhoo4 (AUTHOR) swayambhoomittra@gmail.com |
| Source: | Journal of Earth System Science. Dec2025, Vol. 134 Issue 4, p1-12. 12p. |
| Subjects: | Diffusion kinetics, Chemical processes, Self-organizing systems, Analytical geochemistry, Metamorphic rocks |
| Abstract: | We developed a reaction–diffusion model of the Gierer–Meinhardt type to simulate the formation of orbicular patterns in granites. By coupling felsic (light-coloured) and mafic (dark-coloured) materials as the activator and inhibitor, respectively, our model reproduces a wide range of orbicular patterns, including bands and rings. A comprehensive quantitative analysis reveals that the non-equilibrium dynamics between felsic and mafic materials drive their reorganisation into matrix and core structures within the granites. Furthermore, our linear stability analysis demonstrates that the stability of the system, whether stable or oscillatory, is determined by the eigenvalues in the complex plane, providing insight into the two-component reaction–diffusion dynamics governing the felsic-mafic system. Self-organising chemical processes, driven by varying diffusion rates and nonlinear interactions between minerals during the cooling and solidification of magma, can explain the formation of concentric orbicular patterns in granitic rocks. Article highlights: Developed a Gierer–Meinhardt model to simulate orbicular pattern formation in granites. Demonstrated that felsic–mafic interactions drive matrix-core structures. Orbicular textures reflect environmental stability. Inhibition strength regulates mineral banding and spatial patterning. [ABSTRACT FROM AUTHOR] |
| Copyright of Journal of Earth System Science is the property of Springer Nature 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: 188903303 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Diffusion-driven orbicular dynamics of metamorphic granites. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Saha%2C+Biswajit%22">Saha, Biswajit</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> biswajitsaha.1987.bs@gmail.com</i><br /><searchLink fieldCode="AR" term="%22Roy%2C+Manas+Kumar%22">Roy, Manas Kumar</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> manask.roy@gmail.com</i><br /><searchLink fieldCode="AR" term="%22Sarkar%2C+Bikash+Kumar%22">Sarkar, Bikash Kumar</searchLink><relatesTo>3</relatesTo> (AUTHOR)<i> biku.mdm@gmail.com</i><br /><searchLink fieldCode="AR" term="%22Mitra%2C+Swayambhoo%22">Mitra, Swayambhoo</searchLink><relatesTo>4</relatesTo> (AUTHOR)<i> swayambhoomittra@gmail.com</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Journal+of+Earth+System+Science%22">Journal of Earth System Science</searchLink>. Dec2025, Vol. 134 Issue 4, p1-12. 12p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Diffusion+kinetics%22">Diffusion kinetics</searchLink><br /><searchLink fieldCode="DE" term="%22Chemical+processes%22">Chemical processes</searchLink><br /><searchLink fieldCode="DE" term="%22Self-organizing+systems%22">Self-organizing systems</searchLink><br /><searchLink fieldCode="DE" term="%22Analytical+geochemistry%22">Analytical geochemistry</searchLink><br /><searchLink fieldCode="DE" term="%22Metamorphic+rocks%22">Metamorphic rocks</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: We developed a reaction–diffusion model of the Gierer–Meinhardt type to simulate the formation of orbicular patterns in granites. By coupling felsic (light-coloured) and mafic (dark-coloured) materials as the activator and inhibitor, respectively, our model reproduces a wide range of orbicular patterns, including bands and rings. A comprehensive quantitative analysis reveals that the non-equilibrium dynamics between felsic and mafic materials drive their reorganisation into matrix and core structures within the granites. Furthermore, our linear stability analysis demonstrates that the stability of the system, whether stable or oscillatory, is determined by the eigenvalues in the complex plane, providing insight into the two-component reaction–diffusion dynamics governing the felsic-mafic system. Self-organising chemical processes, driven by varying diffusion rates and nonlinear interactions between minerals during the cooling and solidification of magma, can explain the formation of concentric orbicular patterns in granitic rocks. Article highlights: Developed a Gierer–Meinhardt model to simulate orbicular pattern formation in granites. Demonstrated that felsic–mafic interactions drive matrix-core structures. Orbicular textures reflect environmental stability. Inhibition strength regulates mineral banding and spatial patterning. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Journal of Earth System Science is the property of Springer Nature 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: 10.1007/s12040-025-02656-5 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 12 StartPage: 1 Subjects: – SubjectFull: Diffusion kinetics Type: general – SubjectFull: Chemical processes Type: general – SubjectFull: Self-organizing systems Type: general – SubjectFull: Analytical geochemistry Type: general – SubjectFull: Metamorphic rocks Type: general Titles: – TitleFull: Diffusion-driven orbicular dynamics of metamorphic granites. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Saha, Biswajit – PersonEntity: Name: NameFull: Roy, Manas Kumar – PersonEntity: Name: NameFull: Sarkar, Bikash Kumar – PersonEntity: Name: NameFull: Mitra, Swayambhoo IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 12 Text: Dec2025 Type: published Y: 2025 Identifiers: – Type: issn-print Value: 02534126 Numbering: – Type: volume Value: 134 – Type: issue Value: 4 Titles: – TitleFull: Journal of Earth System Science Type: main |
| ResultId | 1 |
