Global data for measured Fe 2 O 3/FeO ratios and Cu contents in unaltered volcanic and
intrusive arc rocks indicate that, on average, they are slightly more oxidized than other …

Porphyry ore deposits are the source of much of the copper, molybdenum, gold and silver
used by humans. Porphyry ore typically forms in magmatic arcs above subduction zones …

This contribution provides an overview of available experimental, thermodynamic, and
molecular data on Au aqueous speciation, solubility, and partitioning in major types of …

Submarine hydrothermal sulfide ores occur at mid-ocean ridges, intra-oceanic arcs and in
back-arc basins associated with host rocks of highly variable composition. Pyrite is the …

Oxidation of the sub-arc mantle driven by slab-derived fluids has been hypothesized to
contribute to the formation of gold deposits in magmatic arc environments that host the …

Porphyry deposits are copper-rich orebodies formed by precipitation of metal sulphides from
hydrothermal fluids released from magmatic intrusions that cooled at depth within the Earth's …

The major magmatic volatile components—H 2 O, CO 2, S, Cl, and F—play an important role
in the formation, evolution, and eruption of magma. Knowledge of magmatic concentrations …

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 …

Geological aqueous fluids operate in a wide range of temperatures (from 0 to 1000 C) and
depths (from Earth surface to~ 10s km), over which the physical-chemical properties of water …

Current models of the formation and distribution of gold deposits on Earth are based on the
long-standing paradigm that hydrogen sulfide and chloride are the ligands responsible for …