Earth's Crust
The study of earth.
Geology
The theory that states that all the continents were connected together into one huge land mass.
Pangaea
What smaller earthquakes or tremors are called?
Aftershocks
The fastest-traveling seismic wave.
P Waves
The central figure of a volcano is also known as the.
The most abundant element in the earth's crust.
Oxygen
Forms by the bending or buckling of rocks under great force.
Fold
The study of earthquakes.
Seismology
The instrument that records the vibrations caused by earthquakes.
Seismograph
A huge bowl-shaped crater.
Calderas
The area in between where the upper mantle merges into the lower mantle is the _____________ ______________.
Transition Zone
________________ ________________ is the theory that states that the slow movement of the crust is caused by drifting (floating) plates.
Plate Tectonics
The ________________ is the point at which an earthquake begins.
Focus
About 80% of all earthquakes occur in the ______________ ______________.
Circum-Pacific belt
_______________ is the bulging of the overlying rocks in a upward motion that produces a domelike intrusion.
Laccolith
The central part of the earth is called the ______________.
Core
_______________ _______________ appear to form when molten rock is forced beneath an overlying rock layer.
Domed Mountains
________________ ________________ are primarily the result of the sudden movement of rock masses along a fault.
Tectonic Earthquakes
The ____________ _____________ ______________ is the most famous scale used to measure earthquake strength.
Richter Magnitude Scale
The ______________ ________________ _________________ is where more than half of the world's active volcanoes are located.
Ring of Fire
The solids that the inner core is thought to be made of.
Iron and Nickel
Which fault results when rocks on one side of a fault are shoved on top of the rocks on the other side?
Thrust Fault
The theory where rocks on either side of a fault spring back to a position of little or no strain at the movement of an earthquake.
Elastic Rebound
Which reducing method of construction uses isolators that act as movable stilts.
Base-Isolated Systems
The type of volcano where it produces a symmetrical wide-based mountain that is steep. It produces both cinders and lava.
Composite