Volcanic activity and hazard in the East African Rift Zone
Over the past two decades, multidisciplinary studies have unearthed a rich history of
volcanic activity and unrest in the densely-populated East African Rift System, providing new …
volcanic activity and unrest in the densely-populated East African Rift System, providing new …
Models for viscosity of geological melts
JK Russell, KU Hess… - Reviews in Mineralogy …, 2022 - pubs.geoscienceworld.org
Viscosity is the single most important physical property governing the formation, transport
and eruption of naturally occurring silicate melts and magmas. Silicate melt viscosity is of …
and eruption of naturally occurring silicate melts and magmas. Silicate melt viscosity is of …
[HTML][HTML] Role of iron-rich clays on sintering of porcelain stoneware tiles
Porcelain stoneware traditionally contains low Fe 2 O 3 (< 1 wt.%), limiting research on iron's
effects beyond coloration to date. However, recent changes in the supply chain induced a …
effects beyond coloration to date. However, recent changes in the supply chain induced a …
[HTML][HTML] Measuring the degree of “nanotilization” of volcanic glasses: Understanding syn-eruptive processes recorded in melt inclusions
Iron and water content substantially affect the physical properties of natural silicate melts
and may, therefore, influence magmatic and volcanic processes such as crystallization …
and may, therefore, influence magmatic and volcanic processes such as crystallization …
The effect of iron and alkali on the nanocrystal-free viscosity of volcanic melts: A combined Raman spectroscopy and DSC study
The iron coordination, its oxidation state (Fe 2+/Fe tot.), and alkali ratio [Na/(Na+ K)] greatly
influence the structure and thus the viscosity of volcanic melts, which is known to play a key …
influence the structure and thus the viscosity of volcanic melts, which is known to play a key …
Effect of oxygen fugacity on the glass transition, viscosity and structure of silica-and iron-rich magmatic melts
Iron oxidation state affects the physical properties and structure of natural melts and,
ultimately, magmatic and volcanic processes such as magma transport and eruptive style …
ultimately, magmatic and volcanic processes such as magma transport and eruptive style …
[HTML][HTML] Fe-dependent structural evolution of peralkaline soda aluminosilicate glasses: Iron speciation vs. glass transition
The incorporation of iron into peralkaline silicate glasses significantly impacts their structural
and thermal properties. Here we investigate how addition of iron influences the network …
and thermal properties. Here we investigate how addition of iron influences the network …
Experimental constraints on the rheology, eruption, and emplacement dynamics of analog lavas comparable to Mercury's northern volcanic plains
We present new viscosity measurements of a synthetic silicate system considered an
analogue for the lava erupted on the surface of Mercury. In particular, we focus on the …
analogue for the lava erupted on the surface of Mercury. In particular, we focus on the …
Peralkaline silicic extrusive rocks: magma genesis, evolution, plumbing systems and eruption
R Macdonald, JC White… - Comptes …, 2021 - comptes-rendus.academie-sciences …
Résumé Peralkaline silicic extrusive rocks are an important component of the volcanological
record. Here we review several aspects of their formation and evolution, including the …
record. Here we review several aspects of their formation and evolution, including the …
Crystallization kinetics of alkali feldspar in peralkaline rhyolitic melts: implications for Pantelleria volcano
Peralkaline rhyolites, associated with extensional tectonic settings, are medium to low
viscosity magmas that often produce eruptive styles ranging from effusive to highly explosive …
viscosity magmas that often produce eruptive styles ranging from effusive to highly explosive …