Podcast
Questions and Answers
What process describes the rise of magma to the surface, where it becomes lava?
What process describes the rise of magma to the surface, where it becomes lava?
- Magma chamber deposition
- Intrusive rock formation
- Conduit transportation
- Volcanic eruption (correct)
What landform can be created by many successive flood basalt eruptions?
What landform can be created by many successive flood basalt eruptions?
- Mountain
- Lava plateau (correct)
- Lava dome
- Caldera
At what type of boundaries does volcanism manifest in ridges or fissures where lava erupts?
At what type of boundaries does volcanism manifest in ridges or fissures where lava erupts?
- Transform boundaries
- Divergent boundaries (correct)
- Subduction boundaries
- Convergent boundaries
What type of volcanic activity is restricted to convergence involving an oceanic plate?
What type of volcanic activity is restricted to convergence involving an oceanic plate?
What geological feature occurs due to the ascent of mantle plumes to the base of the lithosphere?
What geological feature occurs due to the ascent of mantle plumes to the base of the lithosphere?
Which type of volcanism is typically explosive and produces large deposits and enormous calderas?
Which type of volcanism is typically explosive and produces large deposits and enormous calderas?
What results from the accumulation of magma beneath the Earth's surface?
What results from the accumulation of magma beneath the Earth's surface?
What is a conduit in relation to volcanic activity?
What is a conduit in relation to volcanic activity?
What geological feature is formed by the collapse of a volcano after an eruption?
What geological feature is formed by the collapse of a volcano after an eruption?
What role do mantle plumes play in volcanic activity?
What role do mantle plumes play in volcanic activity?
