The name of the large landmass that as describe by Wegener
What is Pangaea
100
Is said to be an undersea mountain range with a narrow valley running down its center.
What is Mid-ocean ridge
100
These are a group of interconnected faults
What is fault zone
100
The immobile rock along faults
What is Seismic gaps
100
Seismic waves that travel through the liquid part of the earth.
What is P waves
200
Teh name given to the solid rock of the earth's mantle after it melts
What is magma
200
Magma that flows into the earth's surface
What is lava
200
The process of heat transfer that scientists attribute the movements of lithospheric plates to
What is convection currents
200
arears of volcanism with lithospheric plates
What is hot spots
200
THe name Wegener chose to describe a huge, ancient ocean
What is Panthalassa
300
Similarities in continental coastlines gives evidence of
What is the theory of continental drift
300
At a mid-ocean ridge rock moves away and is replaced by
What is molten rock (magma)
300
Which type of boundary would be at a sight of seafloor spreading
What is divergent boundary
300
The earth's asthenosphere is a layer of __________ rock that _______________________ under ______________
What is solid, flows, under
300
Which ocean is hte homeof the Ring of Fire?
What is Pacific Ocean
400
The type of seismic wave that traves slower than the other and can travel only through solids
What is S wave
400
The magnitude of an earthquake is how much _________ it releases
What is energy
400
Tsunamis are a result of
What is earthquakes with epicenters located on the ocean floor.
400
Name given to a giant ocean wave
What is tsunami
400
As a result of the subduction of oceanic crust under a continental crust a ______________ may be formed
What is volcano
500
Pillow lava is rounded formations from volcanoes that erupt under ___________. Lava that is light in color and has a large silica content _________________.
What is water, felsic lava
500
The best way to ditermine if a material is volcanic ash or volcanic dust is by its
What is size or diameter
500
As volcanoes eject solid fragments _____________ cones are formed. When a magma chamber empties and collapses a ______________ is formed.
What is cinder, caldera
500
Earthquakes that ae not usually felt by people
What is microquakes
500
Zone in which one lithospheric plate moves under another