This is where volcanoes form through divergent movement and is under the ocean and most volcanoes in the world for in these spots.
What is mid ocean ridges?
100
The place where magma is held underground before an eruption and the story of the gases within it.
What is magma chamber and silicon and oxygen and CO2 are under pressure until fracture area of plate comes by and then magma has a place to be released onto the surface of Earth?
100
Tall cone shaped mountain with alternating layers of lava, ash.
What is composite volcano?
100
When many layers of thin, runny lava build up to a high level area.
What is a lava plateau?
100
The main hazard of a quiet volcano.
What is lava flow?
200
This volcano belt circles the Pacific Ocean.
What is The Ring of Fire?
200
The type of volcano that releases a pyroclastic flow and what is in it?
What is a explosive eruption that contains cinders and bombs?
200
2 types of eruptions that form all volcanoes and which one is high in silica?
What is quiet and explosive as the two types and explosive as the one high in silica?
200
Magma that has hardened in a pipe and the outside of the structure has worn away through erosion.
What is a volcanic neck?
200
The 3 stages of a volcano and 4 pieces of equipment and thier uses when studying these volcanoes.
What is dormant, active and extinct? What is seismographs, gas detectors, tiltmeter and ground thermometers?
300
This is the "shape" of the islands that make up a string of islands known as the Hawaiin islands.
What is an Island Arc?
300
The 2 types of rocks from quiet flow eruptions and a description of each.
What is aha: sharp, chunky pahoehoe: spaghetti like rope looking rock?
300
This volcano is a gently sloping mountain from lava that has run over the side and hardened over many years.
What is a shield volcano?
300
This magma landform is formed from horizantal layers of rocks that have been uplifted from the Earth and bend the rocks upward into a mountain of this name.
What is a dome mountain?
300
List 3 hazards that are associated with volcanoes that have glaciers near the central vent.
What is landslide, avalanche, mudslides?
400
True or false: Mid ocean ridges form at diverging plate boundaries.
What is true?
400
The structure that magma flows through and then exits out of the volcano and what magma turns into when it leaves a volcano?
What is pipe, central vent, lava?
400
This volcano has build up from pyroclastic flow around the central vent.
What is a cinder cone volcano?
400
These are the two formations of magma that appear as layers between rock. One is sideways and the other is a forced layer that goes kind of like a tree branch.
What is a sill and dike?
400
The formation of a volcano and is NOT a diverging or converging plate.
What is a hot spot?
500
What is "subduction" of a boundary plate and in the United States what states can these be found in?
What is one plate going under another and the states are: OR, WA and CA?
500
What is the bowl shaped area around the central vent and how is this shape relative to a caldera?
What is a crater and is this the shape of a volcano when the top blows off and it fills with water to become a caldera?
500
The type of explosion each of these volcanoes have:
1. cinder cone 2, composite 3. Shield
What is explosive (1) both at diff times (2) Quiet (3)?
500
This is a mass of rock that forms when a large body of magma cools inside the crust.
What is a batholith?
500
The mountain range that was formed when dome mountains were exposed.