Journal ArticleDOI
The effect of CO2 and H2O on Etna and Fondo Riccio (Phlegrean Fields) liquid viscosity, glass transition temperature and heat capacity
Danilo Di Genova,Danilo Di Genova,Claudia Romano,Marina Alletti,Valeria Misiti,Piergiorgio Scarlato +5 more
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TLDR
In this paper, a modified Vogel-Fulcher-Tamman equation was used to model the non-Arrhenian temperature dependence of the viscosity of trachybasalt and Fondo Riccio latite.About:
This article is published in Chemical Geology.The article was published on 2014-06-04. It has received 32 citations till now. The article focuses on the topics: Temperature dependence of liquid viscosity & Differential scanning calorimetry.read more
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Nonequilibrium Magma Degassing: Results From Modeling of the ca. 1340 A.D. Eruption of Mono Craters, California
TL;DR: In this article, a numerical conduit model of nonequilibrium magma degassing is presented, and it is shown that CO2/H2O concentration ratios in pyroclastic obsidian from the ca. 1340 A.D. Mono Craters eruption may record none-ilibrium degassing during magma ascent.
Journal ArticleDOI
Reassessment of the Raman CO 2 densimeter
Hector M. Lamadrid,Hector M. Lamadrid,L. Moore,D. Moncada,J. D. Rimstidt,Robert C. Burruss,Robert J. Bodnar +6 more
TL;DR: In this article, the authors examine potential causes for variations in the various densimeters and show that these differences are mainly the result of using different Raman instruments and settings, different collection parameters, and different analytical methods.
Journal ArticleDOI
Effect of iron and nanolites on Raman spectra of volcanic glasses: A reassessment of existing strategies to estimate the water content
TL;DR: In this article, the effect of iron content and iron nanolites on Raman spectra of hydrous geologically-relevant glasses was investigated using two spectrometers and the results showed that the area of the band at 3550 cm−1 linearly correlates with the sample water content regardless of chemical composition.
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The effect of oxygen fugacity on the rheological evolution of crystallizing basaltic melts
TL;DR: In this paper, the authors present the first rheological characterization of crystallizing lavas along natural cooling paths and deformation-rates and at varying f O 2, and find that crystallization at constant cooling-rates results in a quasi-exponential increase in the apparent viscosity of the magmatic suspensions until they achieve their rheologically cut off temperature (T cutoff ), where the melt effectively solidifies.
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Models for the estimation of Fe3+/Fetot ratio in terrestrial and extraterrestrial alkali- and iron-rich silicate glasses using Raman spectroscopyk
TL;DR: In this article, the effect of iron oxidation state (Fe 3+ /Fe tot ) on the Raman spectra of basaltic and pantelleritic glasses has been investigated using remelted pantellerite from Pantelleria Island and synthetic iron-rich basaltitic glasses.
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Journal ArticleDOI
Analysis of recent measurements of the viscosity of glasses
TL;DR: In this article, the authors compared the results given by English with those of Washburn, Shelton and Libman, indicating a discrepancy in the absolute values of log10 viscosity amounting to 0.6.
ReportDOI
Thermodynamic Properties of Minerals and Related Substances at 298.15 K and 1 Bar (105 Pascals) Pressure and at Higher Temperatures
TL;DR: A report about values for the entropy, molar volume, and for the enthalpy and Gibbs energy of formation for the elements and minerals and substances at 298.15 K was given in this paper.
Journal ArticleDOI
Die Abhängigkeit der Viscosität von der Temperatur bie unterkühlten Flüssigkeiten
G. Tammann,W. Hesse +1 more
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Viscosity of magmatic liquids: A model
TL;DR: In this paper, a model that predicts the non-Arrhenian Newtonian viscosity of silicate melts as a function of T and melt composition, including the rheologically important volatile constituents H2O and F, is presented.