maficultramafic
Maficultramafic, used as a descriptor in igneous petrology, refers to rocks that encompass a compositional range from mafic to ultramafic. These rocks are characterized by relatively high magnesium and iron content and relatively low silica compared with felsic and intermediate rocks. The term underscores a continuum rather than a single rock type, emphasizing the core minerals and formation processes shared across this spectrum.
Mineralogy and composition are dominated by dark ferromagnesian minerals. Ultramafic varieties are rich in olivine and
Formation and occurrence are linked to mantle-derived processes. Ultramafic rocks commonly originate from partial melting and
Maficultramafic rocks are important for understanding mantle composition and geodynamic processes. They host economically significant chromite