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Pyroclastic Material
Zones and Types
Lava and Lava Creations
Boom, boom, pow
E.T. Phone NELHS
100
Another name for pyroclastic material
What is tephra
100
These volcanic cones are created when mafic lava erupts effusively and hardens in a gentle slope.
What is shield volcano
100
This lava has a low silica content, erupts effusively, and is rich in magnesium and iron.
What is mafic
100
This gently, effusive type of eruption iis evident in Mauna Loa and Kilauea.
What is Hawaiian
100
Volcanic features on this body were likely caused by meteor bombardment.
What is moon
200
The smallest type of tephra
What is volcanic dust
200
These volcanic cones are created when felsic lava erupts explosively and hardens in a steep slope.
What is cinder cone volcano
200
This lava has a high silica content, erupts explosively, and is rich in feldspar.
What is felsic
200
Named after a volcano in southern Italy, this type of eruption is known for lava flows and occasional lava bursts.
What is Stromboli
200
The largest volcano in our Solar System is located on this body.
What is Mars
300
The second smallest type of tephra, ranging in size from .25 mm- 2 mm
What is volcanic ash
300
The Hawaiian islands are believed to be created by these.
What is Magma plumes/hotspots
300
This smooth, rope-like rock is formed when mafic lava cools and is deformed slowly.
What is pahoehoe
300
Names after the "original" volcano, this second-largest type of eruption is known for explosive eruptions of viscous lava.
What is Vulcanian
300
The most active volcanic body in our Solar System.
What is Io
400
This pyroclastic material can reach the size of a three story house.
What is volcanic blocks
400
Iceland is the only land that is resting on this volcanic zone.
What is mid-ocean ridge
400
This stony, rough rock is formed when mafic lava cools and is deformed quickly.
What is aa
400
Named after a man who witnessed Vesuvius erupt from afar, this is the largest, most dangerous type of volcanic eruption.
What is Plinian
400
These types of volcanoes erupt gases instead of molten rock.
What is cryovolcano
500
This pyroclastic material ranges from 2 mm-64 mm and its name means "little stones"
What is lapilli
500
These volcanic cones are created when the volcano alternates between erupting effusively and explosively.
What is Stratovolcano/composite volcano
500
These are created when the outer layer of mafic lava cools but the inside remains molten.
What is lava tubes
500
Abbreviated VEI, this rating system is the volcanic version of the "Richter Scale".
What is Volcanic Explosivity Index
500
Mount St. Helens erupted during this year.
What is 1980