Earth's Crust
The layer of the Earth in which we live on
What is the crust?
When two plates are coming together
What is convergent boundary?
The point directly above the focus on the surface from an earthquake
What is epicenter?
A very high and extremely wide volcano
What is a shield volcano?
What stress in the plates creates
What is faults?
The layer below the crust
What is the lithosphere?
Occurs when divergent boundaries are found underwater and moving away from each other
What is the mid ocean ridge?
The released energy takes form in what
What is seismic waves?
The only type of volcanism not associated with a plate boundary
Considered a change in density from the crust to the mantle
What is the Moho Discountinuity?
The two types of plates
An example of a divergent boundary
What is Mid-Atlantic Ridge/Juan de Fuca Ridge/East-Pacific Rise?
The wave that arrives second
What is secondary(S) waves?
A liquid rock on the Earth's surface called extrusive or volcanic respectively
What is lava?
Thick, toxic, fast moving clouds of ash and gases known as
What is nuee ardent?
The ideas that at one time all continents were joined into a large mass
What is Pangea?
A type of convergent boundary
What is ocean-continent collision/ocean-ocean collision/continent-continent collision?
The motion of the Earth in an earthquake is measured using this
What is a seismograph?
A volcano that is typically not that high but very steep
What is a cinder cone volcano?
When two plates are sliding beside each other
What is transform plate boundary?
Published his Theory of Plate Tectonics
Who is Alfred Wegener?
The characteristic consists of a linear feature along the fault where the crust has been fractured
What is a transform plate boundary?
Intensity is measured using this
What is the Mercalli Scale?
A vertical or sloping layer of magma crystallizes in the Earth and is later exposed
What is a dike?
Convergent boundaries contain these types of volcanoes
What are stratocone volcanoes?