View in EDS HTML Full Text PDF Full Text

Shear-induced bubble nucleation in magmas.

Saved in:
Bibliographic Details
Title: Shear-induced bubble nucleation in magmas.
Authors: Roche, Olivier (AUTHOR), Andanson, Jean-Michel (AUTHOR), Dequidt, Alain (AUTHOR), Huber, Christian (AUTHOR), Bachmann, Olivier (AUTHOR), Pinel, David (AUTHOR)
Source: Science. 11/6/2025, Vol. 390 Issue 6773, p633-637. 5p.
Subjects: Magmas, Volcanic eruptions, Shear flow, Chemistry experiments, Nucleation, Bubble dynamics
Abstract: The nucleation of gas bubbles in magmas is fundamental to controlling the dynamics of volcanic eruptions. In this study, we addressed nucleation in a volatile-saturated liquid triggered by viscous shear, which is ubiquitous in volcanic environments. By combining laboratory experiments, theoretical analysis, and numerical simulations, we investigated the conditions under which the mechanical energy associated with shearing favors the formation and growth of gas molecule nuclei in a liquid supersaturated with volatiles. Our results reveal that the critical shear stress for nucleation decreases as the volatile supersaturation increases. Dimensional analysis applied to natural systems shows that shear-induced nucleation is likely to occur in volcanic conduits, which has implications for magma degassing processes and eruptive styles. Editor's summary: Volcanoes are ruled by bubbles, which give magma the buoyancy and compressibility needed to erupt. In magma, the nucleation of bubbles is difficult to observe but is thought to be triggered by decompression and crystallization. Roche et al. wondered if a more kinetic process might be at play: viscous shear. In a series of experiments with a carbon dioxide–supersaturated magma–liquid analog, the authors applied rotation to the liquid and observed bubble nucleation and growth through a transparent shaft. Simulations and dimensional analysis indicated that shear-induced bubble nucleation in volcano conduits is likely to factor into decompression estimates and eruptive style. —Angela Hessler [ABSTRACT FROM AUTHOR]
Copyright of Science is the property of American Association for the Advancement of Science 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: Psychology and Behavioral Sciences Collection
Full text is not displayed to guests.
FullText Links:
  – Type: pdflink
Text:
  Availability: 1
Header DbId: pbh
DbLabel: Psychology and Behavioral Sciences Collection
An: 189138705
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
IllustrationInfo
Items – Name: Title
  Label: Title
  Group: Ti
  Data: Shear-induced bubble nucleation in magmas.
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Roche%2C+Olivier%22">Roche, Olivier</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Andanson%2C+Jean-Michel%22">Andanson, Jean-Michel</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Dequidt%2C+Alain%22">Dequidt, Alain</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Huber%2C+Christian%22">Huber, Christian</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Bachmann%2C+Olivier%22">Bachmann, Olivier</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Pinel%2C+David%22">Pinel, David</searchLink> (AUTHOR)
– Name: TitleSource
  Label: Source
  Group: Src
  Data: <searchLink fieldCode="JN" term="%22Science%22">Science</searchLink>. 11/6/2025, Vol. 390 Issue 6773, p633-637. 5p.
– Name: Subject
  Label: Subjects
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Magmas%22">Magmas</searchLink><br /><searchLink fieldCode="DE" term="%22Volcanic+eruptions%22">Volcanic eruptions</searchLink><br /><searchLink fieldCode="DE" term="%22Shear+flow%22">Shear flow</searchLink><br /><searchLink fieldCode="DE" term="%22Chemistry+experiments%22">Chemistry experiments</searchLink><br /><searchLink fieldCode="DE" term="%22Nucleation%22">Nucleation</searchLink><br /><searchLink fieldCode="DE" term="%22Bubble+dynamics%22">Bubble dynamics</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: The nucleation of gas bubbles in magmas is fundamental to controlling the dynamics of volcanic eruptions. In this study, we addressed nucleation in a volatile-saturated liquid triggered by viscous shear, which is ubiquitous in volcanic environments. By combining laboratory experiments, theoretical analysis, and numerical simulations, we investigated the conditions under which the mechanical energy associated with shearing favors the formation and growth of gas molecule nuclei in a liquid supersaturated with volatiles. Our results reveal that the critical shear stress for nucleation decreases as the volatile supersaturation increases. Dimensional analysis applied to natural systems shows that shear-induced nucleation is likely to occur in volcanic conduits, which has implications for magma degassing processes and eruptive styles. Editor's summary: Volcanoes are ruled by bubbles, which give magma the buoyancy and compressibility needed to erupt. In magma, the nucleation of bubbles is difficult to observe but is thought to be triggered by decompression and crystallization. Roche et al. wondered if a more kinetic process might be at play: viscous shear. In a series of experiments with a carbon dioxide–supersaturated magma–liquid analog, the authors applied rotation to the liquid and observed bubble nucleation and growth through a transparent shaft. Simulations and dimensional analysis indicated that shear-induced bubble nucleation in volcano conduits is likely to factor into decompression estimates and eruptive style. —Angela Hessler [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Science is the property of American Association for the Advancement of Science 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.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=pbh&AN=189138705
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1126/science.adw8543
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 5
        StartPage: 633
    Subjects:
      – SubjectFull: Magmas
        Type: general
      – SubjectFull: Volcanic eruptions
        Type: general
      – SubjectFull: Shear flow
        Type: general
      – SubjectFull: Chemistry experiments
        Type: general
      – SubjectFull: Nucleation
        Type: general
      – SubjectFull: Bubble dynamics
        Type: general
    Titles:
      – TitleFull: Shear-induced bubble nucleation in magmas.
        Type: main
  BibRelationships:
    HasContributorRelationships:
      – PersonEntity:
          Name:
            NameFull: Roche, Olivier
      – PersonEntity:
          Name:
            NameFull: Andanson, Jean-Michel
      – PersonEntity:
          Name:
            NameFull: Dequidt, Alain
      – PersonEntity:
          Name:
            NameFull: Huber, Christian
      – PersonEntity:
          Name:
            NameFull: Bachmann, Olivier
      – PersonEntity:
          Name:
            NameFull: Pinel, David
    IsPartOfRelationships:
      – BibEntity:
          Dates:
            – D: 06
              M: 11
              Text: 11/6/2025
              Type: published
              Y: 2025
          Identifiers:
            – Type: issn-print
              Value: 00368075
          Numbering:
            – Type: volume
              Value: 390
            – Type: issue
              Value: 6773
          Titles:
            – TitleFull: Science
              Type: main
ResultId 1