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 …

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 …

We have characterized the distribution of 25 trace elements in magnetite (Mg, Al, Si, P, Ca,
Sc, Ti, V, Cr, Mn, Co, Ni, Cu, Zn, Ga, Ge, Y, Zr, Nb, Mo, Sn, Hf, Ta, W, and Pb), using laser …

Porphyry Cu systems host some of the most widely distributed mineralization types at
convergent plate boundaries, including porphyry deposits centered on intrusions; skarn …

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 …

Metals such as Cu, Mo, Au, Sn, and W in porphyry and related epithermal mineral deposits
are derived predominantly from the associated magmas, via magmatic–hydrothermal fluids …

Use of the concept of “sulfidation state,” in parallel with oxidation state, in the study of ore
deposits finds its beginnings with the studies of Reno Sales and Charles Meyer at Butte …

This book reviews the geochemical and petrological characteristics of potassic igneous rock
complexes, and investigates the various tectonic settings in which these rocks occur. The …

Giant ore deposits contain anomalously large quantities of metal and are priority targets for
mineral exploration companies. It is debated whether these giant deposits have a unique …

Porphyry deposits are the world's most important source of Cu and Mo, and are major
sources of Au, Ag, and Sn; significant byproduct metals include Re, W, In, Pt, Pd, and Se …