The shape of shield volcanoes is a function of
A)lava viscosity
B)proportion of pyroclastic debris included in the edifice
C)local variations in the tilt of the land surface
D)the explosive nature of the eruptions that produce the shield

Question

Quizplus · Accepted Answer

The shape of shield volcanoes is mainly determined by the viscosity of the lava that pours out of them. Shield volcanoes have low viscosity lava, which is able to flow easily and spread out over a large area, forming wide, gently sloping sides. The more fluid the lava, the wider and flatter the shield volcano will be.

The Shape of Shield Volcanoes Is a Function of