Exam 3 Flashcards
(23 cards)
What happens to tectonic plates at a divergent boundary?
 they move apart
What type of boundary would not have volcanoes and/or lava?
Transform boundaries
Oceanic crust is created at… Plate boundaries
Divergent
What is the mechanism/cause for the features at an oceanic divergent boundary?
Magma pushing up
What happens when a continental plate collide with a continental plate?
Neither plate is subducted; both plates collide in form a mountain range
The crust and upper mantle are called…
Lithosphere
The mid Atlantic Ridge is an example of a… Plate boundary
Oceanic divergent
A rift is a feature/landform associated with what two plate boundaries?
Oceanic divergent, and continental divergent
Hey… Is the side of a continent where there is not a plate boundary
Passive margin
A ridge is a feature associated with what boundary?
Oceanic divergent
What is another name for a continental divergent boundary?
Continental rift
True or false. P waves compress in and out
True
 the process of using three station readings to locate an earthquake is called…
Triangulation
They print out that is recorded of the earthquake is called a…
Seismogram
What is a factor that determines structural damage from an earthquake?
Duration of the vibrations
True or false. Low viscosity and little gases apply to fluid lava flow.
True
What magma’s have the highest viscosity?
Cold magma, and less fluid magma
A… Volcano is primarily composed of lava flows
Shield volcano
What is most common at divergent boundaries?
Fissure eruptions
True or false. lava fountains are a hazard at a cinder cone volcano.
False. But it does have flowing lava.
The opening at the top of a volcano is called a…
Vent
What magma would have the highest silica? Low viscosity or high viscosity?
High viscosity
The Himalayan mountains are an example of…
Continent – continent convergent
