Volatile elements (water, carbon, nitrogen, sulfur, halogens, and noble gases) played an
essential role in the secular evolution of the solid Earth and emergence of life. Here we …

Inclusions of basaltic melt trapped inside of olivine phenocrysts during igneous
crystallization provide a rich, crystal-scale record of magmatic processes ranging from …

A first-order observation of convergent margin volcanism is that continental arc
stratovolcanoes have substantially elevated incompatible element abundances and notable …

Although the capacity for water to lower the solidus during crustal melting is well recognised,
a modern consensus is that most granitic magmas are generated under fluid-absent melting …

Mafic enclaves preserve a record of deep differentiation of primitive magmas in arc settings.
We analyze the petrology and geochemistry of mafic enclaves from Shiveluch volcano in the …

Arc basalts with high H 2 O content are expected to evolve into highly hydrated felsic melts
saturated with aqueous fluids at lower crustal pressures, which are potentially important in …

Accurate models of H2O and CO2 solubility in silicate melts are vital for understanding
volcanic plumbing systems. These models are used to estimate the depths of magma …

Abstract The Alaska Peninsula section of the Aleutian-Alaska subduction zone exhibits
significant along-strike variations in plate coupling, earthquakes, and arc magmatism. Here …

Under the right circumstances, fluid-fluxed crustal melting occurs, as demonstrated by some
amphibolite-facies migmatites, but the relatively low temperatures involved make this mode …

We provide a new algorithm for mass‐balance calculations in petrology and geochemistry
based on the log‐ratio approach championed initially by John Aitchison (eg, Aitchison …