Silica is also richer in magmas formed by fractional crystallization If the magma is mafic-which is likely-silica crystallizes early and forms olivine at the surface (Figure 7). In certain cases (e.g.

Which process may result in a magma becoming more enriched in silica content? Silica is also richer in magmas formed by fractional crystallization If the magma is mafic-which is likely-silica ...