Micro-textures and chemical compositions of metamorphic magnetite and ilmenite: Insights from the Mianhuadi mafic complex in SW China

The compositions of (titano)magnetite in magmatic and hydrothermal ore deposits have shown the potential to discriminate mineral deposit types. However, primary Fe-Ti oxides were sometimes overprinted by metamorphic event(s) over the long geologic history. To what extent the Fe-Ti oxide aggregates in mafic rocks can be modified, either by re-equilibration or interaction with the silicates, during high-grade metamorphism has not been...