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 …

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 …

Tungsten and Sn deposits in China are widely distributed in the South China block (ie,
Yangtze craton-Cathaysian block), Himalaya, Tibetan, Sanjiang, Kunlun, Qilian, Qinling …

A comprehensive account of ore-forming processes, revised and updated The revised
second edition of Introduction to Ore-Forming Processes offers a guide to the multiplicity of …

Based on a compilation of published sources, rocks referred to as adakites show the
following geochemical and isotopic characteristics: SiO2≥ 56 wt percent, Al2O3≥ 15 wt …

XANES analyses at the sulfur K-edge were used to determine the oxidation state of S
species in natural and synthetic basaltic glasses and to constrain the fO2 conditions for the …

Abstract Porphyry Cu (±Mo±Au) and epithermal Au-Ag deposits are major sources of mined
metals and are commonly formed by magmatic-hydrothermal fluids derived from hydrous …

Accurate estimates of the sulfur content in silicate melts at sulfide saturation are required to
explain magmatic processes such as the origin and budget of sulfur in some volcanic …

The origin of cratonic diamonds is reviewed on the basis of nearly 5000 analyses of silicate,
oxide and sulphide inclusions in diamonds. Compositional fields are defined for common …

The importance of externally derived sulfur in the genesis of sulfide-rich, magmatic Ni-Cu-
(platinum group element [PGE]) deposits remains a key, yet unresolved, issue. Calculations …