*3.3.2 Oxides*

The lava oxides in the study area are represented by titanomagnetite and ilmenite (**Figure 7**). These two minerals coexist in some lava, notably dolerite mugaearites. They are sometimes automorphic with various shapes (square, rectangular and rod-shaped), with sizes ranging from 0.2 to 1 mm. They occur as phenocrystals and microcrystals either embedded in minerals such as olivine, clinopyroxene and feldspars; or embedded in mesostase. Furthermore, titanomagnetite appears as the most abundant oxide in basalts, mugaearites and trachyes.
