Show:
Earthquakes
Plate Tectonics
Faults & folds
plate bounderies
volcanoes
100
Earthquakes occur along these cracks in the earth's surface.
What are faults?
100
The semi-fluid layer in the upper mantle.
What is the asthenosphere?
100
This fault is created when rocks are being pulled apart.
What is a normal fault?
100
The boundary where plates are spreading apart.
What are divergent plate boundaries?
100
Molten rock on the surface of the earth.
What is lava?
200
The point in which the earth first moves creating an earthquake.
What is a focus?
200
The theory that Alfred Wegener developed.
What is the Continental Drift Theory?
200
This fault is created when rocks are pushed together.
What is a reverse fault?
200
When one plate goes under another.
What is subduction?
200
Molten rock beneath the surface of the earth.
What is magma?
300
The point on the earth's surface directly above an earthquake.
What is the epicenter?
300
Type of crust that is made primarily of granite.
What is continental crust?
300
An upward arched fold.
What is an anticline?
300
The deepest parts of the ocean.
What are deep ocean trenches?
300
This type of lava is fluid and hot producing shield volcanoes.
What is mafic lava?
400
The fastest seismic wave.
What are P-waves?
400
This creates island chains in the middle of tectonic plates.
What are hotspots?
400
These type of faults are common on subduction boundaries.
What are reverse faults?
400
Mountain chains located in the middle of the oceans.
What are mid-ocean ridges?
400
A flat slab-like intrusion of magma parallel to rock layers.
What is a sill?
500
The theory that rocks bend until they break.
What is the Elastic-Rebound Theory?
500
This is considered to be the driving force behind tectonic plate movement.
What are convection currents?
500
San Andreas fault is this type of fault.
What is a transform fault?
500
This is created when polar reversals occur at a spreading center.
What is magnetic striping?
500
An intrusion that looks like an upside down lake.
What is a laccolith?