Magmatic iron meteorite groups such as IIAB, IIIAB and IVA, represent the largest sampling of extraterrestrial core material from earliest accreted distinct planetary bodies in solar system. Chromium isotope compositions chromite/daubreelite seven samples, translated into 53Cr/52Cr model ages, provide robust time information on formation. These ages range within 1.5 Ma after formation calcium-a...

Stable potassium (K) isotopes are emerging as tracers of terrestrial recycling and planetary processes. These applications require well-defined K isotopic compositions for the mantle bulk silicate Earth (BSE). Both values determined primarily by basalts formed via partial melting mantle. Basaltic melts experience igneous differentiation before reaching surface, which may alter their compared to...

The magmatic-hydrothermal evolution of porphyry-style mineralization in the shallow crust that is linked to magmatic processes at depth has been extensively studied using bulksample isotopic analysis combined with relative timing constraints. However, a lack of evaluation of the fluid evolution process against an absolute time frame limits further understanding of the ore-forming process. Here,...

Subduction-related magmatic arcs represent immense accumulations of intermediate, calc-alkaline igneous rocks and are considered the main factories of continental crust on Earth. Estimating the pace at which these giant volumes of magmatic rock were added to the crust and the mechanisms responsible for magmatic addition are fundamental issues for the disciplines of igneous petrology and contine...