What is a volcano?
A vent or opening in Earth's crust through which magma, gases, and ash erupt.
What is a volcano?
The plate boundary where most volcanoes are found.
What is a convergent plate boundaries?
A type of subduction zone volcano that occurs due to ocean to ocean convergence.
What is an island arc volcano?
The three main types of volcanoes based on their shape and eruption style
What are shield volcanoes, stratovolcanoes and cinder cone volcanoes
Molten rock stored in Earth's crust.
What is magma.
Minerals that are deposited by volcanoes
what is gold, aluminum, and nickel?
A volcanic location that can occur in the middle of a tectonic plate.
What is a hotspot?
The island arc volcanos of Alaska
What are the Aleutian Islands?
A small steep volcano only about 300 meters high.
What is a cinder cone?
Composition factors of magma that influence the type of eruption.
What is viscosity, gas content, temperature?
The main components of a volcano's structure.
What is a magma chamber, vent and crater?
A highly volcanic area around the pacific plate where about 75% of active volcanoes are located.
What is the Ring of Fire
An intraplate volcano.
What is a hotspot?
Made of alternating layers of pyroclastic material and lava flows. Has the most violent eruptions
What is a stratovolcano or composite volcano
Viscosity is affected by this element.
What is silica or silicon dioxide.
The number of potentially active volcanoes worldwide
What is 1,500?
The type of plate boundary that surrounds the Pacific Plate.
What is a convergent subduction zone?
Spreading centers that develop within continents
What is a rift volcano or a rift valley
Largest of the volcanoes.
What is a shield volcano?
Type of eruption that occurs in lava dome volcanoes.
What is effusive?
The Roman god of fire.
What is Vulcan?
The outermost layer that consists of the crust and part of the mantle.
What is the lithosphere?
Created when oceanic crust subducts under continental crust.
What is a continental arc?
When very thick lava erupts through a volcanic vent and piles up around it.
What is a lava dome?
Low viscosity, high dissolved gas, explosive, results in cinder cone volcanoes.
What is Fire-Fountains?