Porphyry deposits are large, low-grade metal ore bodies that are formed from hydrothermal
fluids derived from an underlying magma reservoir. They are important as major sources of …

Continental arcs are the sites of production of continental crust, but the origin of these
magmatic systems is not well understood. Although a number of processes have been …

Much of the world's economic copper resources are hosted in porphyry copper deposits
(PCDs), shallow level magmatic intrusions associated mostly with thick (> 45 km) magmatic …

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 …

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 …

The two most important magmatic differentiation series on Earth are the Fe-enriching
tholeiitic series, which dominates the oceanic crust and island arcs, and the Fe-depleting …

Arc magmas globally are H2O-Cl-S–rich and moderately oxidized (ΔFMQ=+ 1 to+ 2) relative
to most other mantle-derived magmas (ΔFMQ≤ 0). Their relatively high oxidation state limits …

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

Resolving the geochemical discrepancies between the bulk continental crust and its
building blocks, basaltic arc magmas, can provide insights into the processes by which the …

This paper presents a review of the geology and geochemistry of post-collisional PCDs in
Tibet, including their spatial–temporal distribution, features of the ore-forming porphyries …