Origin of magnetite phenocrysts in mafic magmatic enclaves of the Bamuni pluton, Mikir Massif, Northeast India

Key Points

• Magnetite phenocrysts originate from unique mafic magmatic enclaves, indicating diverse geochemical conditions.
• Key evidence highlights that the composition of these enclaves impacts magnetite formation, with variations noted in mineral phases.
• Geochemical analysis across several sites provided insights into the formation processes of these phenocrysts.
• Findings support a more intricate understanding of magmatic evolution in the Mikir Massif region.