In this contribution, we investigate the space and time distribution of the Cenozoic
magmatism and the associated porphyry Cu-Mo±Au and other hydrothermal (mostly …

Many workers accept a metamorphic model for orogenic gold ore formation, where a gold-
bearing aqueous-carbonic fluid is an inherent product of devolatilization across the …

Abstract The Paleocene–Eocene southern Peru metallogenic belt contains numerous very
large to supergiant porphyry Cu–Mo deposits. The deposits were dated previously as coeval …

Hydroxylation-oxidation reactions of the type H 2 O+ Fe→ 2+ Fe 3++ OH−+ 1/2 H 2 oxidise
Fe 2+ in olivine and pyroxenes in oceanic lithosphere prior to subduction and in the supra …

Sulfide-rich hydrous arc cumulates in the lower crust are considered a likely source for
porphyry Cu-forming magmas in post-subduction settings. However, it remains controversial …

Arc magmatism is fundamental to the generation of new continental or island arc crust.
However, the mechanisms that add to the chemical complexity of natural calc-alkaline …

Arc magmas have higher water contents (2-6 wt.% H2O) than magmas generated in other
tectonic environments, with a growing body of evidence suggesting that some deep arc …

Less than a year after the 2018 Kīlauea caldera collapse and eruption, water appeared in
newly deepened Halemaʻumaʻu crater. The lake—unprecedented in the written record …

During the differentiation of arc magmas, fractionating liquids follow a series of cotectics,
where the co‐crystallization of multiple minerals control the melt compositional trajectories …

We present the first in-situ partitioning data for bromine between a natural basaltic melt and
a coexisting fluid. For this study hydrothermal diamond anvil cell experiments at pressures …