Ans: The rock formation known as basalt is formed by mafic lava. If you look closely at the ocean floor, you'll notice that the majority of it is made of basalt. It's also related to intraplate volcanism and the nature of mid-ocean ridges. Felsic lava, on the other hand, is typically found in geological areas known as the convergent zone. Geologic plates collide in this region. The presence of large quantities of silica in this region, combined with the presence of nearby water and burnt earth, results in stickier lavas and more violent eruptions. Andesitic and rhyolitic rock formations are formed by felsic lava.