Volcanoes General
What object is a vent where material from a magma chamber escapes?
What is a volcano
This is the result of a the upper mantle melting.
What is a volcano?
This is the most active volcanic region on Earth.
What is the Ring of Fire?
This is 1 of the 4 countries that have had a super-colossal eruption.
What is North Korea, Greece, Indonesia, and Japan
This is the theory that the continents never move and the world has always looked the same.
What is the 1-Plate Theory?
What is molten rock that is under the earth's surface?
magma
What is created when two oceanic plates diverge?
mid-ocean ridge
The ring of fire has many convergent boundaries where the oceanic plate dives below the continental plate. This is called _______________.
subduction
This is the type of volcano you'll find in the ocean or on an island.
What is a shield volcano?
This is the theory that the continents are in constant motion on lithospheric plates.
What is plate tectonics?
What is magma called when it is on the earth's crust?
What is lava?
What is a plume of hot material that rises through the mantle and can cause volcanoes?
What is a hot spot?
What are Shield, Cinder Cone, Stratovolcano, Complex, Submarine, Caldera, Tuff Cone, ...?
This is the type of volcano you'll normally find near a subduction zone.
What is a stratovolcano?
This is the name of the scientist who composed the plate tectonics theory.
Who is Alfred Wegener?
Name and describe the 3 stages of a volcano based on activity.
Active - has erupted in recent human history
Dormant - not active; not eroded
Extinct - not active; eroded
These are the two types of tectonic plate boundaries where volcanoes are found.
What are convergent and divergent plate boundaries?
What are stratovolcanoes and shield volcanoes?
The Ring of Fire is located on the perimeter of which ocean?
What is the Pacific Ocean?
This is a fossil that shows evidence of plate tectonics.
What is Glossopteris Fern, Mesosaurus, European Fauna, ...
This is the layer of the Earth where magma originates.
What is the asthenosphere?
The origin of many islands like the Hawaii islands.
What is hot spot volcanism?
This is the most explosive kind of eruption.
What is a super-colossal eruption?
This is the only continent without volcanoes.
What is australia?
This is the evidence that proved Wegener's plate tectonics theory correct.
What is magnetic evidence of seafloor spreading?