Open-vent volcanoes fuelled by depth-integrated magma degassing
Open-vent, persistently degassing volcanoes—such as Stromboli and Etna (Italy), Villarrica
(Chile), Bagana and Manam (Papua New Guinea), Fuego and Pacaya (Guatemala) …
(Chile), Bagana and Manam (Papua New Guinea), Fuego and Pacaya (Guatemala) …
Bubble formation in magma
Volcanic eruptions are driven by bubbles that form when volatile species exsolve from
magma. The conditions under which bubbles form depend mainly on magma composition …
magma. The conditions under which bubbles form depend mainly on magma composition …
Sulfur K-edge XANES analysis of natural and synthetic basaltic glasses: Implications for S speciation and S content as function of oxygen fugacity
PJ Jugo, M Wilke, RE Botcharnikov - Geochimica et Cosmochimica Acta, 2010 - Elsevier
XANES analyses at the sulfur K-edge were used to determine the oxidation state of S
species in natural and synthetic basaltic glasses and to constrain the fO2 conditions for the …
species in natural and synthetic basaltic glasses and to constrain the fO2 conditions for the …
Sulfide saturation in mafic magmas: Is external sulfur required for magmatic Ni-Cu-(PGE) ore genesis?
The importance of externally derived sulfur in the genesis of sulfide-rich, magmatic Ni-Cu-
(platinum group element [PGE]) deposits remains a key, yet unresolved, issue. Calculations …
(platinum group element [PGE]) deposits remains a key, yet unresolved, issue. Calculations …
The effect of water on the sulfur concentration at sulfide saturation (SCSS) in natural melts
We experimentally investigated the effect of water on the sulfur concentration at sulfide
saturation (SCSS) in basaltic, andesitic, and rhyolitic melt compositions at 1250° C, 1 GPa …
saturation (SCSS) in basaltic, andesitic, and rhyolitic melt compositions at 1250° C, 1 GPa …
Sulfur degassing from volcanoes: source conditions, surveillance, plume chemistry and earth system impacts
C Oppenheimer, B Scaillet… - Reviews in mineralogy …, 2011 - pubs.geoscienceworld.org
Despite its relatively minor abundance in magmas (compared with H2O and CO2), sulfur
degassing from volcanoes is of tremendous significance. It can exert substantial influence …
degassing from volcanoes is of tremendous significance. It can exert substantial influence …
Modeling the solubility of sulfur in magmas: a 50-year old geochemical challenge
There are myriad reasons why we wish to understand the behavior of sulfur in magmatic
systems, reasons that vary from pure intellectual curiosity to possible impacts on society and …
systems, reasons that vary from pure intellectual curiosity to possible impacts on society and …
Fluid saturation and volatile partitioning between melts and hydrous fluids in crustal magmatic systems: The contribution of experimental measurements and solubility …
DR Baker, M Alletti - Earth-Science Reviews, 2012 - Elsevier
This work reviews the experimental constraints on the concentrations of volatiles that can be
expected in melts found in the crust and the saturation of such melts with a separate fluid …
expected in melts found in the crust and the saturation of such melts with a separate fluid …
Experimental Simulation of Closed-System Degassing in the System Basalt–H2O–CO2–S–Cl
Magma degassing processes are commonly elucidated by studies of melt inclusions in
erupted phenocrysts and measurements of gas discharge at volcanic vents, allied to …
erupted phenocrysts and measurements of gas discharge at volcanic vents, allied to …
Sulfur degassing at Erta Ale (Ethiopia) and Masaya (Nicaragua) volcanoes: Implications for degassing processes and oxygen fugacities of basaltic systems
We investigate the relationship between sulfur and oxygen fugacity at Erta Ale and Masaya
volcanoes. Oxygen fugacity was assessed utilizing Fe3+/∑ Fe and major element …
volcanoes. Oxygen fugacity was assessed utilizing Fe3+/∑ Fe and major element …