Exam 4: Volcanoes and Volcanic Processes

When the molten lava drains away from beneath the hardened surface of a flow it leaves open tunnels called lava tubes.

Basaltic volcanoes like Kilauea are typically the most explosive.

What type are the volcanoes of the Cascades and Alaska's Aleutian Islands?

What term describes a dangerous, fast moving, glowing turbulent cloud of volcanic gases and fine, partially molten, pyroclastic particles, like the 1902 eruption that destroyed St.Pierre on Martinique?

Which kind of volcano is closely associated with convergent plate boundaries and subduction zones?

Volcanoes do not usually produce lava and ash during the same eruption.

Which type of mafic flow has a rough, jagged, clinkery surface and advances slowly at speeds less than 50 m/hour?

What are small basaltic cones built during one short, eruptive episode?

Volcanic bombs are explosive and detonate on impact.

Which statement best describes the big Hawaiian volcanoes?

The active Hawaiian volcanoes are situated directly above a major boundary between two of the Earth's largest tectonic plates.

Domes form from high viscosity felsic magma slowly erupted into a volcanic crater.

Crater Lake in Oregon actually occupies a caldera, not a crater.

Which region has the greatest concentration of currently active volcanoes?

How hot are mafic lava flows that they can ignite car tires and melt street lamp posts?

For the following items, please choose from one of the following answers. -________ massive, gently sloping volcanoes built of successive, basaltic lava flows

What volcanic environment generated both Mt.Pelee and Montserrat?

What kind of material is most commonly added to the landscape in explosive volcanic eruptions?

For the following items, please choose from one of the following answers. -________ the big volcanoes of Hawaii

What super-eruption about 73,500 years ago is thought to have affected regional climate?