The most violent volcanic explosions are generated from
A)basaltic lava flows.
B)andesitic lava flows.
C)granitic lava flows.
D)ocean floor lava flows.

Question

Quizplus · Accepted Answer

Andesitic lava flows are associated with the most violent volcanic explosions because of their high viscosity and gas content. The magma is trapped beneath the surface and builds up pressure until a violent eruption occurs, releasing the gas and magma explosively. Basaltic lava flows are relatively low in viscosity and gas content, leading to less explosive eruptions. Granitic lava flows are typically associated with non-explosive eruptions. Ocean floor lava flows can lead to explosive eruptions if the magma interacts with seawater, but they are generally less violent than andesitic eruptions.

The Most Violent Volcanic Explosions Are Generated from