A steep sided, small volcano made of mostly small tephra and often found on the side of a larger volcano is called this.
What is cinder cone volcano.
What plate tectonic process makes composite volcanoes?
What is subduction?
This is the main ingredient in magma and lava.
What is silica?
This particle is less than 2mm in diameter, wrecks machinary and will turn to cement in your lungs.
What is volcanic ash.
This is magma when it is on the earth's crust?
What is lava?
This type of volcano is the "Large Marge" of the three types?
What is a shield volcano
What type of lava is associated with divergent boundaries like the mid-ocean ridge?
What is mafic lava?
Name three characteristics of felsic magma.
What is high silica content, high viscosity, light color, explosive eruptions, steep volcanoes.
They aren't dropped by a plane but you wouldn't want to get hit by one of these 64 mm or bigger pieces
What is a volcanic bomb?
The average number of years between volcanic eruptions at Yellowstone
What is 600K years.
Composite volcanos are made of layer of these.
What is lava and ash/pyroclastics?
Hot spots can happen in this location on Earth.
What is anywhere the crust is thin and mantle material comes to the surface?
Shield volcanoes are made of mafic magma for this reason.
What is mafic magma is thin and runny and builds gentle slopes.
These are the three main gases to come out of a volcano
What is water vapor, CO2, and sulfur/hydrogen?
This is the driving force behind violent volcanic eruptions
What is dissolved gases in the magma creating pressure?
Hot spot volcanoes are formed over this planetary feature.
What are magma plumes from the mantle.
What percent of the world's volcanoes are on the circum-Pacific Belt ()Pacific Ring of Fire?
What is 85%?
Mafic magma makes these types of rocks.
What is basaltic or dark rocks?
These hot hazards can be hard on buildings but rarely kill people
What are lava flows?
This is the main destructive element of a super volcano eruption
What is vast amounts of ash or atmospheric gases causing a global winter?
These volcanoes form over subduction zones and can be very violent.
What is a composite (strato) volcano
This is the region that has the next highest concentration of volcanoes after the ring of fire.
What is the Mediterranean Belt.
Mantle material melts into magma within this temperature range.
What is 700-1300 degrees Celcius
A pyroclastic flow is made up of this
What are hot ash, lava, debris and gases?
These pyroclastics are 2mm to 64mm and can rain down 2-5 km away from a big eruption and cause major damage and death.
What are lapilli?