Porphyry copper deposits (PCDs) hosted in subvolcanic intrusions at convergent margins
are the primary world's copper resources. However, the set of magmatic processes that lead …

Abstract World-class magmatic Ni-Cu-(PGE) deposits have been extensively studied and
are thought to occur in extensional intraplate settings. Recent reports indicate significant …

Sulfur belongs among H2O, CO2, and Cl as one of the key volatiles in Earth's chemical
cycles. High oxygen fugacity, sulfur concentration, and δ34S values in volcanic arc rocks …

Ore deposits are loci on Earth where energy and mass flux are greatly enhanced and
focussed, acting as magnifying lenses into metal transport, fractionation and concentration …

Experiment and observation have established the centrality of oxygen fugacity (f O 2) to
determining the course of igneous differentiation, and so the development and application of …

Metamorphic devolatilization of subducted slabs generates aqueous fluids that ascend into
the mantle wedge, driving the partial melting that produces arc magmas. These magmas …

The observation that primitive arc magmas are more oxidized than mid-ocean-ridge basalts
has led to the paradigm that slab-derived fluids carry SO2 and CO2 that metasomatize and …

High-pressure dehydration of serpentinite during subduction generates fluids that flux and
melt the overlying mantle wedge, forming primary arc basalts. These basalts are …

The partitioning of major and trace elements between eclogite and aqueous fluids with
variable salinity was studied at 700–800° C and 4–6 GPa in piston cylinder and multi anvil …

Continental arc magmas supply the ore-forming element budget of most globally important
porphyry-type ore deposits. However, the processes enabling certain arc segments to …