Literatur vom gleichen Autor/der gleichen Autor*in
plus bei Google Scholar

Bibliografische Daten exportieren
 

Estimating the viscosity of volcanic melts from the vibrational properties of their parental glasses

Titelangaben

Cassetta, Michele ; Di Genova, Danilo ; Zanatta, Marco ; Boffa Ballaran, Tiziana ; Kurnosov, Alexander ; Giarola, Marco ; Mariotto, Gino:
Estimating the viscosity of volcanic melts from the vibrational properties of their parental glasses.
In: Scientific Reports. Bd. 11 (2021) . - 13072.
ISSN 2045-2322
DOI: https://doi.org/10.1038/s41598-021-92407-5

Volltext

Link zum Volltext (externe URL): Volltext

Angaben zu Projekten

Projekttitel:
Offizieller Projekttitel
Projekt-ID
Open Access Publizieren
Ohne Angabe

Abstract

The numerical modelling of magma transport and volcanic eruptions requires accurate knowledge of the viscosity of magmatic liquids as a function of temperature and melt composition. However, there is growing evidence that volcanic melts can be prone to nanoscale modification and crystallization before and during viscosity measurements. This challenges the possibility of being able to quantify the crystal-free melt phase contribution to the measured viscosity. In an effort to establish an alternative route to derive the viscosity of volcanic melts based on the vibrational properties of their parental glasses, we have subjected volcanologically relevant anhydrous glasses to Brillouin and Raman spectroscopic analyses at ambient conditions. Here, we find that the ratio between bulk and shear moduli and the boson peak position embed the melt fragility. We show that these quantities allow an accurate estimation of volcanic melts at eruptive conditions, without the need for viscosity measurements. An extensive review of the literature data confirms that our result also holds for hydrous systems; this study thus provides fertile ground on which to develop new studies of the nanoscale dynamics of natural melts and its impact on the style of volcanic eruptions.

Weitere Angaben

Publikationsform: Artikel in einer Zeitschrift
Begutachteter Beitrag: Ja
Keywords: Glasses; Petrology; Raman spectroscopy; Rheology; Volcanology
Institutionen der Universität: Forschungseinrichtungen > Zentrale wissenschaftliche Einrichtungen > Bayerisches Forschungsinstitut für Experimentelle Geochemie und Geophysik - BGI
Forschungseinrichtungen
Forschungseinrichtungen > Zentrale wissenschaftliche Einrichtungen
Titel an der UBT entstanden: Ja
Themengebiete aus DDC: 500 Naturwissenschaften und Mathematik > 500 Naturwissenschaften
Eingestellt am: 09 Okt 2021 21:00
Letzte Änderung: 23 Aug 2023 12:35
URI: https://eref.uni-bayreuth.de/id/eprint/67269