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Volcanoes Part 2
Volcanic Rocks and Lava
Geologic Terms
Earthquakes and Plate Tectonics Part 2
Other Random Geologic Questions
100
The youngest and most active Hawaiian Island.
What is the Big Island, Hawaii?
100
Magma that is now above ground.
What is lava?
100
Abrupt and rapid movement of the earth at a fault or along the edge of a tectonic plate.
What is an earthquake?
100
A transverse wave, is the slower moving earthquake wave.
What is a S wave?
100
Magma being pushed to the surface of the earth. Can range from gentle to very explosive.
What is an eruption?
200
Area of magma upwelling that usually form along Subduction zones or hot spots.
What is a volcano?
200
Opening in a lava tube.
What is lava window?
200
The machine that records the vibrations made by an earthquake.
What is a seismograph?
200
A pressure wave, is the fastest moving earthquake wave.
What is a P wave?
200
This occurred in March 2011 after a M9.0 earthquake off the coast of Japan.
What is a tsunami?
300
Hawaiian Islands
What is an example of a shield volcano?
300
Formed deep in earth, cools very slowly so has large crystals. Is an igneous rock but not a volcanic rock.
What is granite?
300
Circular pattern of Subduction zones around the Pacific Ocean.
What is Ring of Fire?
300
Two tectonic plates separate from each other creating new land in between by the upwelling of magma.
What is sea floor spreading?
300
Circular pattern of mantle movement that powers plate tectonics.
What are convection currents?
400
Mount Saint Helens
What is an example of a stratovolcano or composite volcano?
400
Lava cools on top forming straw for lava to flow through, is a good lava insulator.
What is a lava tube?
400
Dark volcanic rock, makes up the majority of the sea floor.
What is basalt?
400
Two tectonic plates come together usually forming mountains or a subduction zone.
What is a convergent boundary?
400
Theory that the plates are moving either apart, together, or past each other.
What is the plate-tectonics theory?
500
SP crater in Arizona
What is an example of a cinder cone volcano?
500
Lava shoots up from long cracks in ground, looks like wall of fire.
What is a lava curtain?
500
Method of finding a location using three points and the known distance from each.
What is triangulation?
500
Two tectonic plates move past each other horizontally.
What is a transform boundary?
500
Strike-slip fault running though Southern California.
What is the San Andreas fault?