________ magma is the most abundant type erupted at oceanic spreading centers
Answers. Best Answer: Basalt eruptions are most prevalent in oceanic eruptions, at sea floor spreading zones and formation of island arcs. Felsic eruptions, which are typically granitic or rhyolytic, are more common in continental eruptions.The predominant eruptions are oceanic, so basaltic eruptions are more common.A theory of the evolution of a volcano maintains that eruptions of young volcanoes start out basaltic and become more and more felsic as the volcano matures. This is thought to be to magma differentiation and fractionation. Source(s):elsic eruptions, which are typically granitic or rhyolytic, are more common in continental eruptions. The predominant eruptions are oceanic, so basaltic eruptions are more common.