Increases in the magnitude of positive Ce anomalies zircons from igneous rocks are often interpreted to be controlled by progressive melt oxidation and have been used provide evidence for elevated redox state magmas associated with porphyry Cu deposits. In this paper, we test idea comparing trace element compositions Resolution Cu-Mo deposit, Arizona, numerical models systematics zircon-melt pa...

Fluids play a major role in facilitating igneous/metamorphic processes the Earth’s crust and mantle. In this study, we investigate nature composition of fluids interior by studying lower crustal rocks. We compare accessory minerals (e.g., apatite, monazite, allanite, titanite), their texture, mineral reactions among regionally distributed metamorphosed mafic felsic rocks representing roots Neoa...

Titanite is a common accessory mineral that useful in determining both age (U-Pb isotopes) and pressure-temperature (P–T) conditions (trace-element composition: Zr, rare earth elements (REE)). However, titanite has propensity to recrystallize during metamorphism, fluid flow, deformation, which can result modifications its isotopic trace-element compositions. This modification implications for t...

• Mangodara forms a dome cored by tonalitic gneiss, mantled granodioritic gneiss. Gneiss-granitoids derive from partial melting of Birimian greenstones. Residual melt syntectonic gneiss genesis formed rare-metal pegmatites. We describe the geological context rare metal-bearing pegmatites district (South-West Burkina Faso, Paleoproterozoic West African Craton) and discuss their petrogenesis link...