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http://hdl.handle.net/2122/16434
Authors: | Bonechi, Barbara* Stagno, Vincenzo* Kono, Yoshio* Hrubiak, Rostislav* Ziberna, Luca* Andreozzi, Giovanni B.* Perinelli, Cristina* Gaeta, Mario* |
Title: | Experimental measurements of the viscosity and melt structure of alkali basalts at high pressure and temperature | Journal: | Scientific Reports | Series/Report no.: | /12 (2022) | Publisher: | Nature PG | Issue Date: | 2022 | DOI: | 10.1038/s41598-022-06551-7 | Abstract: | Volcanic eruptions are shallow phenomena that represent the final stage of density- and viscositydriven processes of melt migration from source rocks at upper mantle depths. In this experimental study, we investigated the effect of pressure (0.7–7.0 GPa) and temperature (1335–2000 °C) on the viscosity and the atomic melt structure of a synthetic anhydrous primitive alkaline basalt, an analogue of the pre-eruptive magma that likely feeds the Campi Flegrei Volcanic District at present day. Obtained viscosities (0.5–3.0 Pa s), mobility (0.1–0.4 g cm3 Pa− 1 s− 1) and ascent velocity (1.5–6.0 m yr− 1) are presented to support geochemical and geophysical observations of Campi Flegrei as a critical volcanic district currently undergoing gradual magma recharge at depth. |
Appears in Collections: | Article published / in press |
Files in This Item:
File | Description | Size | Format | |
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Bonechi et al2022_ScRep.pdf | Open Access published article | 2.03 MB | Adobe PDF | View/Open |
Bonechi et al2022_SM.pdf | 1.42 MB | Adobe PDF | View/Open |
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