magnétite et pyrite

Sulfidation of nano-magnetite to pyrite: Implications for …

We experimentally demonstrated the rapid sulfidation of nano-magnetite to pyrite under conditions similar to those prevailing in sulfidic hydrothermal habitats. The transformation of magnetite to pyrite occurred within 19 days (80 °C, pH ∼7) and was …

Replacement of magnetite by pyrite under hydrothermal …

We interpret magnetite-bearing mafic bodies, and magnetite- and …

An experimental study of the mechanism of the replacement …

The formation of pyrite/marcasite was studied as a function of reaction …

Hydrothermal sulfidation of biogenic magnetite produces

We demonstrated that sulfidation of abiogenic and biogenic magnetite …

Replacement of magnetite by pyrite under …

Direct heterogeneous nucleation of pyrite from solutions and pyrite formation via replacement of pyrrhotite (formed by replacing magnetite), are both proposed as reaction mechanisms based on …