Which Kind Of Effusive Eruption Is Described As Less Viscous?

Which Kind Of Effusive Eruption Is Described As Less Viscous? Basaltic composition magmas are the most common effusive eruptions because they are not water saturated and have low viscosity. What type of volcano has low viscosity? Shield volcanoes Where a volcano produces low viscosity, runny lava, it spreads far from the source and forms a