Plate Tectonics, Earthquakes & Volcanoes
Terms in this set (...)
The large super-continent that coincides with the Theory of Plate Tectonics
Two plates move in a direction towards each other
Two plates move in a direction away from each other
Two plates scrape past each other in opposite directions
at a convergent boundary, one plate is more dense and sinks beneath the other plate.
Theory of Plate Tectonics
The idea that earth's crust is made up of moving plates.
the place where plates meet.
An event that occurs when rocks along the plate boundaries shift suddenly and release their stored energy.
A break in the earth's surface along which rock can move.
The beginning point of an earthquake; the location from which seismic waves travel outwards.
The vibrations that flow out from the focus of an earthquake.
The point on the surface of the earth directly above the focus of an earthquake.
A scientist who studies the movement of the earth.
A machine used to detect, time and measure the movements of the earth.
The amount of energy released from an earthquake.
A sudden series of very long and tall waves; usually caused by an earthquake, volcano, or landslide occurring under or near the ocean.
The molten rock and gasses beneath the earth's surface.
A crack in the earth's crust through which molten rock comes to the surface.
A scientist who studies volcanoes.
A pocket of molten rock deep in the earth's lithosphere.
Magma that has broken through the surface of the earth.
Ring of Fire
The ring of volcanos found in an area around the Pacific Ocean.
Places on the Earth where a pool of intensely hot magma rises towards the surface, melting rock until it breaks through the crust.
An avalanche of red-hot dust and gasses that races down the sides of some volcanos.
Clouds filled jagged bits of crushed rock.
The powdery residue left after the burning of a substance.
A conical hill produced by eruption of ash, cinders or lava.
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