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Pregled bibliografske jedinice broj: 1154632

Dynamic observations of vesiculation reveal the role of silicate crystals in bubble nucleation and growth in andesitic magmas

Pleše, Pia; Higgins, M.D.; Mancini, L.; Lanzafame, G.; Brun, F.; Fife, J.L.; Casselman, J.; Baker, D.R.
Dynamic observations of vesiculation reveal the role of silicate crystals in bubble nucleation and growth in andesitic magmas // Lithos, 296-299 (2018), 532-546 doi:10.1016/j.lithos.2017.11.024 (međunarodna recenzija, članak, znanstveni)

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Naslov
Dynamic observations of vesiculation reveal the role of silicate crystals in bubble nucleation and growth in andesitic magmas

Autori
Pleše, Pia ; Higgins, M.D. ; Mancini, L. ; Lanzafame, G. ; Brun, F. ; Fife, J.L. ; Casselman, J. ; Baker, D.R.

Izvornik
Lithos (0024-4937) 296-299 (2018); 532-546

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Heterogeneous bubble nucleation ; Volcanic degassing ; 4D in situ tomography ; 3D tomography ; Silicatecrystals

Sažetak
Bubblenucleationandgrowthcontroltheexplosivityofvolcaniceruptions, andthekineticsoftheseprocesses aregenerallydeterminedfromexaminationsofnaturalsamplesandquenchedexperimentalrunproducts. Thesesamples, however, onlyprovideaviewofthe finalstate, fromwhichtheinitialconditionsofatime- evolvingmagmaticsystemaretheninferred.Theinterpretationsthatfollowareinexactduetotheinabilityof determiningtheexactconditionsofnucleationandthepotentialdetachmentofbubblesfromtheirnucleation sites, anuncertaintythatcanobscuretheirnucleationlocation – eitherhomogeneouslywithinthemeltor heterogeneouslyattheinterfacebetweencrystalsandmelts.Wepresentresultsofaseriesofdynamic, real- time4DX-raytomographicmicroscopyexperimentswhereweobservedthedevelopmentofbubblesincrystal bearingsilicatemagmas.Experimentallysynthesizedandesiticglasseswith0.25–0.5wt%H2O andseedsilicate crystalswereheatedat1atmtoinducebubblenucleationandtrackbubblegrowthandmovement.Incontrast to previousstudiesonnaturalandexperimentallyproducedsamples, wefoundthatbubblesreadilynucleated on plagioclaseandclinopyroxenecrystals, thattheircontactanglechangesduringgrowthandthattheycan growtosizesmanytimesthatofthesilicateonwhosesurfacetheyoriginated.Therapidheterogeneous nucleationofbubblesatlowdegreesofsupersaturationinthepresenceofsilicatecrystalsdemonstratesthat silicatescanaffectwhenvesiculationensues, influencing subsequentpermeabilitydevelopmentandeffusive vs. explosivetransitioninvolcaniceruptions.

Izvorni jezik
Engleski

Znanstvena područja
Geologija



POVEZANOST RADA

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Citiraj ovu publikaciju:

Pleše, Pia; Higgins, M.D.; Mancini, L.; Lanzafame, G.; Brun, F.; Fife, J.L.; Casselman, J.; Baker, D.R.
Dynamic observations of vesiculation reveal the role of silicate crystals in bubble nucleation and growth in andesitic magmas // Lithos, 296-299 (2018), 532-546 doi:10.1016/j.lithos.2017.11.024 (međunarodna recenzija, članak, znanstveni)
Pleše, P., Higgins, M., Mancini, L., Lanzafame, G., Brun, F., Fife, J., Casselman, J. & Baker, D. (2018) Dynamic observations of vesiculation reveal the role of silicate crystals in bubble nucleation and growth in andesitic magmas. Lithos, 296-299, 532-546 doi:10.1016/j.lithos.2017.11.024.
@article{article, author = {Ple\v{s}e, Pia and Higgins, M.D. and Mancini, L. and Lanzafame, G. and Brun, F. and Fife, J.L. and Casselman, J. and Baker, D.R.}, year = {2018}, pages = {532-546}, DOI = {10.1016/j.lithos.2017.11.024}, keywords = {Heterogeneous bubble nucleation, Volcanic degassing, 4D in situ tomography, 3D tomography, Silicatecrystals}, journal = {Lithos}, doi = {10.1016/j.lithos.2017.11.024}, volume = {296-299}, issn = {0024-4937}, title = {Dynamic observations of vesiculation reveal the role of silicate crystals in bubble nucleation and growth in andesitic magmas}, keyword = {Heterogeneous bubble nucleation, Volcanic degassing, 4D in situ tomography, 3D tomography, Silicatecrystals} }
@article{article, author = {Ple\v{s}e, Pia and Higgins, M.D. and Mancini, L. and Lanzafame, G. and Brun, F. and Fife, J.L. and Casselman, J. and Baker, D.R.}, year = {2018}, pages = {532-546}, DOI = {10.1016/j.lithos.2017.11.024}, keywords = {Heterogeneous bubble nucleation, Volcanic degassing, 4D in situ tomography, 3D tomography, Silicatecrystals}, journal = {Lithos}, doi = {10.1016/j.lithos.2017.11.024}, volume = {296-299}, issn = {0024-4937}, title = {Dynamic observations of vesiculation reveal the role of silicate crystals in bubble nucleation and growth in andesitic magmas}, keyword = {Heterogeneous bubble nucleation, Volcanic degassing, 4D in situ tomography, 3D tomography, Silicatecrystals} }

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus

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